Diagrammatic transverse section of abdomen, to show the peritoneum on transverse tracing. A, at level of foramen of Winslow. B, lower down. In A note, one of the vasa brevia arteris passing to the stomach between the layers of the gastrosplenic omentum, and also the foramen of Winslow leading into the lesser sac which lies behind the stomach.

Transverse Section of Abdomen

Diagrammatic transverse section of abdomen, to show the peritoneum on transverse tracing. A, at level…

"Aorta: a, ascending arch of aorta; ss, coronary arteries; b', innominata artery; b, right subelavian; c, right carotid; d, left carotid; e, left subelavian; f, thoracic aorta; gg, diaphragm; hh, phrenic arteries; i, caeliac axis; k, coronary or gastric; l, splenic; m, hepatic; n, superior mesenteric; oo, renal arteries; p, inferior mesenteric; p', spermatic; q, common iliac; r, middle sacral." — Chambers' Encyclopedia, 1875

Aorta

"Aorta: a, ascending arch of aorta; ss, coronary arteries; b', innominata artery; b, right subelavian;…

The left ventricle and the commencement of the aorta laid open. Mpm, Mpl, the papillary muscles. From their upper ends are seen the chordae tendinae proceeding to the edges of the flaps of the mitral valve. The opening into the uricle lies between tehse flaps. At the beginning of the aorta are seen ints three pouch-like semilunar valves.

Aorta

The left ventricle and the commencement of the aorta laid open. Mpm, Mpl, the papillary muscles. From…

The aorta and connecting arteries.

The Aorta and Connecting Arteries

The aorta and connecting arteries.

Diagram of the branches of the aorta.

Branches of the Aorta

Diagram of the branches of the aorta.

The aorta. A, from in front; B, from behind, with the origin of its principal branches. Labels: 1,2, ascending aorta; 2, 3, arch of aorta; 4, innominate artery; 5, left carotid; 6, left sublavian; 7,7,7, intercostal and lumbar arteries; 8, 8, renal arteries; 9,9, common iliac arteries; 10, middle sacral arteries; 11, one of the phrenic arteries; +, coeliac axis; 12, gastric; 13, hepatic; 14, splenic artery; 15, superior mesenteric; 16, interior mesenteric; 17, 17, spermatic or ovarian arteries.

The Aorta

The aorta. A, from in front; B, from behind, with the origin of its principal branches. Labels: 1,2,…

Aortic arches of a mammal, and their relations to the five embryonic arches. Labels: c, c', carotids; A, aorta; Ap, pulmonary artery; Aa, great arch of aorta.

Aortic Arches

Aortic arches of a mammal, and their relations to the five embryonic arches. Labels: c, c', carotids;…

"Diagram of the arterial system of A, Scorpio, and B, Limulus. The Roman numerals indicate the body somites and the two figures are adjusted for comparison. ce, Cerebral arteries; sp, supra-spinal or medullary artery; c, caudal artery; l, lateral anastomotic artery of Limulus. The figure B also shows the peculiar neural investiture formed by the cerebral arteries in Limulus and the derivation from this of the arteries to the limbs, III, IV, VI, whereas in Scorpio the latter have a seperate origin from the anterior aorta." — The Encyclopedia Britannica, 1910

Arterial System

"Diagram of the arterial system of A, Scorpio, and B, Limulus. The Roman numerals indicate the body…

"h, root of aorta; 1, arch of aorta, to the right side; li, left innominate; ri, innominate; ls, left subclavian; rs, right subclavian; lc, left carotid; rc, right carotid. Aves bicarotidinae normales, with two carotids, both alike." Elliot Coues, 1884

Carotid Arteries of Birds

"h, root of aorta; 1, arch of aorta, to the right side; li, left innominate; ri, innominate; ls, left…

"h, root of aorta; 1, arch of aorta, to the right side; li, left innominate; ri, innominate; ls, left subclavian; rs, right subclavian; lc, left carotid; rc, right carotid. Aves laevo-carotidinae, with left carotid only." Elliot Coues, 1884

Carotid Arteries of Birds

"h, root of aorta; 1, arch of aorta, to the right side; li, left innominate; ri, innominate; ls, left…

"h, root of aorta; 1, arch of aorta, to the right side; li, left innominate; ri, innominate; ls, left subclavian; rs, right subclavian; lc, left carotid; rc, right carotid. Aves bicarotidinae abnormalis, certail parrots, with two carotids, not alike." Elliot Coues, 1884

Carotid Arteries of Birds

"h, root of aorta; 1, arch of aorta, to the right side; li, left innominate; ri, innominate; ls, left…

"h, root of aorta; 1, arch of aorta, to the right side; li, left innominate; ri, innominate; ls, left subclavian; rs, right subclavian; lc, left carotid; rc, right carotid. Aves conjuncto-carotidinae, with two carotids, which speedily unite in one.Bittern, both alike." Elliot Coues, 1884

Carotid Arteries of Birds

"h, root of aorta; 1, arch of aorta, to the right side; li, left innominate; ri, innominate; ls, left…

"h, root of aorta; 1, arch of aorta, to the right side; li, left innominate; ri, innominate; ls, left subclavian; rs, right subclavian; lc, left carotid; rc, right carotid. Aves conjuncto-carotidinae, with two carotids, which speedily unite in one. Flamingo, left very small" Elliot Coues, 1884

Carotid Arteries of Birds

"h, root of aorta; 1, arch of aorta, to the right side; li, left innominate; ri, innominate; ls, left…

"h, root of aorta; 1, arch of aorta, to the right side; li, left innominate; ri, innominate; ls, left subclavian; rs, right subclavian; lc, left carotid; rc, right carotid. Aves conjuncto-carotidinae, with two carotids, which speedily unite in one. Cockatoo, right very small." Elliot Coues, 1884

Carotid Arteries of Birds

"h, root of aorta; 1, arch of aorta, to the right side; li, left innominate; ri, innominate; ls, left…

Arteries of the abdominal organs. Labels: 1, the liver; 2, the stomach; 3, upper gut; 4, pancreas; 6, great mesenteric artery; 7, gastric branch; 8, spleen; 9, pyloric branch; 10, pancreatic branch;    11, hepatic artery; 12, duodinal branch; 13, cystic artery; 14, branches to the stomach; 15, 16, spleenic arteries; 17, gastro-epiploic artery; 18, descending aorta; 19, great mesenteric artery.

Arteries of the Abdominal Organs

Arteries of the abdominal organs. Labels: 1, the liver; 2, the stomach; 3, upper gut; 4, pancreas; 6,…

Major arteries of the body. The kidneys and spleen are also shown with their respective arteries. Labels: 1, cheek arteries; 2, coeliac axis; 3, gastric artery; 4, hepatic artery; 5, spleenic artery; 6, supra-renal artery on right side; 7, right renal artery; 8, lumbar arteries; 9, upper mesenteric artery; 10, the two spermatic arteries; 11, the lower mesenteric; 12, the middle sacras; 13, the common iliac; 14, internal iliac of the right side; 15, external iliac; 16, episgastric artery; 17, circumflex iliac artery; 18, femoral artery.

Major Arteries

Major arteries of the body. The kidneys and spleen are also shown with their respective arteries. Labels:…

The right auricle (atrium) and ventricle of the heart opened, and a part of their right and anterior walls removed, so as to show their interior; 1/2, 1, superior vena cava; 2, inferior vena cava; 2', hepatic veins cut short; 3, right auricle; 3', placed in the fossa ovalis, below which is the Eustachian valve; 3", is placed close to the aperture of the coronary vein; +, +, placed n the auriculo-ventricular groove, where a narrow portion of the adjacent walls of the auricle and ventricle has been preserved; 4, 4, cavity of the right ventricle; the upper figure is immediately below the semilunar valves; 4', large columna carnea or musculus papillaris; 5, 5', 5", tricuspid valve; 6, placed in the interior o the pulmonary artery, a part of the anterior wall of that vessel having been removed, and a narrow portion of it preserved at its commencement where the semilunar valves are attached; 7, concavity of the aortic arch close to the cord of the ductus arteriosus; 8, ascending part of sinus of the arch covered at its commencement by the auricular appendix and pulmonary artery; 9, placed between the innominate and left carotid arteries; 10, appendix of the left auricle; 11, 11, the outside of the left ventricle, the lower figure near the apex.

Right Atrium and Ventricle of the Heart

The right auricle (atrium) and ventricle of the heart opened, and a part of their right and anterior…

Branchi of the lungs, the heart, and blood vessels. Labels: 1, left auricle; 2, right auricle; 3, left ventricle; 5, pulmonary artery; 6, arch of the aorta; 7, superior vena cava; 8, arteria innominata; 9, left primitive carotid artery; 10, left subclavian artery; 11, trachea; 12, larynx; 13, upper lobe of right lung; 14, upper lobe of left lung; 15, trunk of right pulmonary artery; 16, lower lobes of the lungs.

Branchi and Blood Vessels

Branchi of the lungs, the heart, and blood vessels. Labels: 1, left auricle; 2, right auricle; 3, left…

"<em>A</em>, a muscle which aids in pushing the food down the esophagus; <em>B</em>, esophagus; <em>C</em>, section of the right bronchus; <em>D</em>, two right pulmonary veins; <em>E</em>, great azygos vein crossing the esophagus to empty into the superior vena cava, <em>F</em>, thoracic duct; <em>H</em>, thoracic aorta; <em>K</em>, lower portion of the esophagus passing through the diaphragm; <em>L</em>, diaphragm as it appears in sectional view, enveloping the heart; <em>M</em>, inferior vena cava, passing through the diaphragm and emptying into the right auricle; <em>N</em>, right auricle; <em>O</em>, section of the right branch of the pulminary artery; <em>P</em>, aorta; <em>R</em>, superior vena cava; <em>S</em>, trachea." &mdash; Blaisedell, 1904

Lateral section of the chest

"A, a muscle which aids in pushing the food down the esophagus; B, esophagus; C,…

The ninth, tenth, and eleventh cranial nerves. Labels: 1, Gasserian ganglion; 2, internal carotid; 3, pharyngeal branch of pneumogastric; 4, glosso-pharyngeal; 5, lingual; 6, spinal accessory; 7, middle constrictor of pharynx; 8, internal jugular vein; 9, superior laryngeal nerve; 10, ganglion of pneumogastric, 11, hypoglossal; 12, ditto communicating with eighth and first cervical; 13, external laryngeal; 14, second cervical; 15, pharyngeal plexus; 16, superior cervical ganglion; 17, superior cardiac nerve; 18, third cervical; 19, thyroid body; 20, fourth cervical; 21, recurrent laryngeal; 22, spinal accessory; 23, trachea 24, middle cervical ganglion; 25, middle cardiac nerve; 26, phrenic; 27, left carotid; 28, bronchial plexus; 29, phrenic; 30, inferior cervical ganglion; 31, pulmonary plexus; 32, aorta; 33, esophageal plexus; 34, vena axygos superior; 35, vena azygos minor; 36, gangliated cord of sympathetic.

The Ninths, Tenth, and Eleventh Cranial Nerves

The ninth, tenth, and eleventh cranial nerves. Labels: 1, Gasserian ganglion; 2, internal carotid; 3,…

"Central organs of the circulaion, gills, and renal organs of Sepia officinalis. a, aorta; v, vena cava; v' visceral veins; c, systemic heart; d, dilatations of branchial veins on entering the heart; e, branchial hearts; b, branchiae; r, renal organs." &mdash; Encyclopedia Britannica, 1893

Cuttlefish Organs

"Central organs of the circulaion, gills, and renal organs of Sepia officinalis. a, aorta; v, vena cava;…

"Frog with the left side cut away and some of the organs pulled downward. a, aorta leading from the ventricle; b, bladder; c, spinal cord surrounded by the vertebral column of bone; d, small intestine; e, opening of the lungs into the pharynx; h, ventricle of the heart; k, kidney; l, lung; liv, liver; n, brain; ov, ovary; ovd, oviduct; p, pancreas; r, rectum; sp, spleen; st, stomach; t, tongue; si, small intestine; u, left auricle; ur, ureter; v, vena cava; vc, body of vertebra." &mdash;Davison, 1906

Dissected Frog

"Frog with the left side cut away and some of the organs pulled downward. a, aorta leading from the…

The relationship of the esophagus, trachea and aorta in an infant.

Esophagus, Trachea, and Aorta in an Infant

The relationship of the esophagus, trachea and aorta in an infant.

"Development of excretory system of vertebrate. The primitive segments are not separated off from the lateral plate, and the pronephros (pn.) is seen arising from the lower part of the primitive segment.n.c., nerve cord; nch., notochord; pn., pronephros; g., gut; p.s., primitive segment; mes., mesonephric tubule; pn.d., pronephric duct; b.c., body cavity; ao., aorta; siv., sub-intestinal vein, with vessel to the aorta." -Thomson, 1916

Excretory System Stage 1

"Development of excretory system of vertebrate. The primitive segments are not separated off from the…

"Development of excretory system of vertebrate. The pronephros is completely separated off from the primitive segment and lateral plate.n.c., nerve cord; nch., notochord; pn., pronephros; g., gut; p.s., primitive segment; mes., mesonephric tubule; pn.d., pronephric duct; b.c., body cavity; ao., aorta; siv., sub-intestinal vein, with vessel to the aorta." -Thomson, 1916

Excretory System Stage 2

"Development of excretory system of vertebrate. The pronephros is completely separated off from the…

"The origin of the mesonephric tubules is seen. They arise from the upper part of the lateral plate, which is now completely separated from the primitive segment, and curving round the pronephric duct come to open into it.n.c., nerve cord; nch., notochord; pn., pronephros; g., gut; p.s., primitive segment; mes., mesonephric tubule; pn.d., pronephric duct; b.c., body cavity; ao., aorta; siv., sub-intestinal vein, with vessel to the aorta." -Thomson, 1916

Excretory System Stage 3

"The origin of the mesonephric tubules is seen. They arise from the upper part of the lateral plate,…

"Diagram of the principal vessels in the circulation of a fish, ventral view. a, aorta; au., auricle; br.a., afferent branchial arteries; br.e., efferent branchial arteries; bu., bulbus (or conus) arteriosus; c, carotid; c.a., caudal artery; c.v.r., right cardinal vein; c.v.l., left cardinal vein; d.a., dorsal artery; d.c., ductus Cuvieri; g, gills; h.v., hepatic vein; h.p., hepatic portal vein; i, intestine; j, jugular vein; k, kidney; l, liver; r.p., renal portal vein; s.v., sinus venosus; v, ventricle." &mdash; Galloway

Fish Circulation

"Diagram of the principal vessels in the circulation of a fish, ventral view. a, aorta; au., auricle;…

"The heart and the great blood-vessel attached to it, seen from the side towards the sternum. The left cavities and the vessels connected with them are colored red; the right black. Atd, right auricle; Adx and As, the right and left auricular appendages; Vd, right ventricle; Vs, left ventricle; Aa, aorta; Ab, innominate artery; Cs, left common carotid artery; Ssi, left subclavian artery; P, main trunk of the pulmonary artery, and Pd and Ps, its branches to the right and left lungs; cs, superior vena cava; Ade and Asi, the right and left innominate veins; pd, ps, the right and left pulmonary veins; crd and crs, the right and left coronary arteries." &mdash;Martin, 1917

Heart

"The heart and the great blood-vessel attached to it, seen from the side towards the sternum. The left…

"The heart vied from its dorsal aspect. ci, inverior vena cava; Vc, coronary vein; Atd, right auricle; Adx and As, the right and left auricular appendages; Vd, right ventricle; Vs, left ventricle; Aa, aorta; Ab, innominate artery; Cs, left common carotid artery; Ssi, left subclavian artery; P, main trunk of the pulmonary artery, and Pd and Ps, its branches to the right and left lungs; cs, superior vena cava; Ade and Asi, the right and left innominate veins; pd, ps, the right and left pulmonary veins; crd and crs, the right and left coronary arteries." &mdash;Martin, 1917

Heart

"The heart vied from its dorsal aspect. ci, inverior vena cava; Vc, coronary vein; Atd, right auricle;…

Front view of the heart and great vessels. The pulmonary artery has been cut short close to its origin. Labels: 1, right ventricle; 2, left ventricle; 3, root of the pulmonary artery; 4, 4', arch of the aorta; 4'', the descending thoracic aorta; 5, part of the right auricle; 6, part of the left auricle; 7, 7', innominate veins joining to form the vena cava superior; 8, inferior vena cava; 9, one of the large hepatic veins; X, placed in the right auriculo-ventricular groove, points to the right or posterior coronary artery; X, X, placed in the anterior interventricular groove, indicate the left or anterior coronary artery.

Heart

Front view of the heart and great vessels. The pulmonary artery has been cut short close to its origin.…

View of the heart with its several chambers exposed and the vessels in connection with them. Labels: 1, the superior vena cava. 2, the inferior vena cava. 3. the chamber called the auricle. 4. the right ventricle. 5. the line marking the passage between the two chambers, and the points of attachment of one margin of the valve. 6. the septum between the two ventricles. 7. the pulmonary artery, arising from the right ventricle, and dividing at 8 into right and left, of the corresponding lungs. 9. the four pulmonary veins, bringing the blood from the lungs into 10, the left auricle. 11. the left ventricle. 12. the aorta, arising from the left ventricle, and passing down behind the heart, to distribute blood to every part of the system. Thus the blood moves in a double circle, one from the heart to the body, and from the body back to the heart, called the systemic circle; the other, from the heart to the lung, and from the lung back to the heart, called the pulmonic circle.

Heart and its Chambers

View of the heart with its several chambers exposed and the vessels in connection with them. Labels:…

1, The trachea or windpipe; 2 and 3, right and left common carotid arteries; 4 and 5, right and left sub clavian arteries; 6, innominate artery; 7 and 8, right and left innominate veins; 9, Superior vena cava; 10, arch of the aorta; 11, ascending aorta; 12, pulmonary artery; 13, right atrium and auricula; 14 and 15, right and left lung; 16, conus arteriosus; 17, right ventricle; 18, left ventricle.

Heart and Lungs

1, The trachea or windpipe; 2 and 3, right and left common carotid arteries; 4 and 5, right and left…

The heart and lungs. 1, right ventricle; 3, right auricle (atrium); 6, 7, pulmonary artery; 9, aorta; 10, superior vena cava; 11, innominate artery; 12, right subclavian vein; 14, innominate vein; 15, left common carotid; 17, trachea; 20, pulmonary veins; 22 to 25, lungs, partially turned back to show veins on left side.

Heart and Lungs

The heart and lungs. 1, right ventricle; 3, right auricle (atrium); 6, 7, pulmonary artery; 9, aorta;…

Diagram of the heart completely divided into right and left halves, and of a double (systematic and pulmonary) circulation. Ad, right auricie; Vcs, anterior vena cava; Vd, right ventricle; Ap, pulmonary artery; P, lung; Vp, pulmonary vein; As, left auricle; Vs, left ventricle; Ao, aorta; D, gut; L, liver; Vp, portal vein; Lv, hepatic vein.

Heart Divided into Left and Right Halves

Diagram of the heart completely divided into right and left halves, and of a double (systematic and…

The left auricle and ventricle laid open, the posterior walls of both being removed.

Heart with Left Auricle and Ventricle Laid Open

The left auricle and ventricle laid open, the posterior walls of both being removed.

The right auricle and ventricle laid open, the anterior walls of both being removed.

Heart with Right Auricle and Ventricle Laid Open

The right auricle and ventricle laid open, the anterior walls of both being removed.

The cavities of the right auricle and right ventricle of the heart.

Auricle and Ventricle of the Heart

The cavities of the right auricle and right ventricle of the heart.

A representation of the heart as it really appears showing the front view. At <em>a</em> is the right auricle that receives blood from all pats of the body by two large veins h and i. At <em>b</em> is the right ventricle, which receives the blood from the auricle and sends it to the lungs by the pulmonary artery <em>f</em>. At <em>c</em> is the left auricle, which receives the blood from the lungs by the pulmonary veins <em>g, g, g</em>. At <em>d</em> is the left ventricle which receives blood from the auricle and forces it all over the body through the aorta <em>e</em>.

Heart, Front View of

A representation of the heart as it really appears showing the front view. At a is the right…

Diagram of the interior of the heart. Labels: A, aorta; PA, pulmonary artery; VCI and VCS, vena cava inferior and vena cava superior; T, tricuspid, and M, mitral valve. The other letters same as in preceding figure.

Interior of the Heart

Diagram of the interior of the heart. Labels: A, aorta; PA, pulmonary artery; VCI and VCS, vena cava…

Left side of heart. Labels: 1, cavity of left auricle (atrium); 3, opening of right pulmonary veins; 5, left pulmonary veins; 5, left pulmonary veins; 6, auriculo-ventricular opening; 8, wall of left ventricle; 9, cavity of left ventricle; a, mitral valve (its flaps are attached by the chordae tendineae to the muscular pillars (b,b); d, arch of aorta); e, pulmonary artery.

Left Side of Heart

Left side of heart. Labels: 1, cavity of left auricle (atrium); 3, opening of right pulmonary veins;…

Position of the heart. The pericardium laid open.

Position of the Heart

Position of the heart. The pericardium laid open.

"<em>L.A.</em>, left auricle; <em>R.A.</em>, right auricle; <em>R.V.</em>, right ventricle; <em>A</em>, opening of the inferior vena cava; <em>B</em>, superior vena cava; <em>C</em>, right pulmonary veins; <em>D</em>, left pulmonary veins; <em>E</em>aorta; <em>F</em>, left branch of pulmonary artery; <em>G</em>, great cardiac vein; <em>H</em>middle cardiac vein. the cardiac lymphatics which follow the course of the cardiac veins are also shown." &mdash; Blaisedell, 1904

Posterior view of the heart

"L.A., left auricle; R.A., right auricle; R.V., right ventricle; A,…

Section of Kidney. 1: Body of Kidney; 2: Internal vessels; 3: Ureter, leading to the bladder.

Kidney

Section of Kidney. 1: Body of Kidney; 2: Internal vessels; 3: Ureter, leading to the bladder.

Kidneys and their vessels. 1: Left kidney; 2: Ascending vein; 3: Aorta; 4: Left ureter; 5: Bladder.

Kidneys

Kidneys and their vessels. 1: Left kidney; 2: Ascending vein; 3: Aorta; 4: Left ureter; 5: Bladder.

The anterior surfaces of the kidneys, showing areas of contact of neighboring viscera.

Anterior Surface of the Kidneys

The anterior surfaces of the kidneys, showing areas of contact of neighboring viscera.

The posterior surfaces of the kidneys, showing areas of relation to the parietes.

Posterior Surface of the Kidneys

The posterior surfaces of the kidneys, showing areas of relation to the parietes.

Vertical section of the kidney.

Vertical Section of the Kidney

Vertical section of the kidney.

Femoral iliac and aortic lymphatic vessels and glands. Labels: 1, saphena magna vein; 2, external iliac artery and vein; 3, primitive iliac artery and vein; 4, aorta; 9, superior set of inguinal lymphatic glands; 10, chain of lymphatics; 11, lymphatics which accompany the circumflex iliac vessels; 12, lumbar an aortic lymphatics; 13, origin of thoracic duct; 14, thoracic duct at its commencement.

Lymphatic Vessels and Glands

Femoral iliac and aortic lymphatic vessels and glands. Labels: 1, saphena magna vein; 2, external iliac…

The pericardium is a conical serofibrous sac in which the hear and the commencement of the great vessels are contained. Show are the ligaments of the pericardium. Right lateral view, showing the right vertebropericardial ligaments, the right phrenopericardial, and the superior and inferior sternopericardial ligaments.

Pericardium Ligaments

The pericardium is a conical serofibrous sac in which the hear and the commencement of the great vessels…

"The renal organs, viewed from behind. R, right kidney; A, aorta; Ar, right renal artery; Vc, inferior vena cava; Vr, right renal vein; U, right ureter; Vu, bladder; Ua, commencement of urethra." &mdash;Martin, 1917

Renal Organs

"The renal organs, viewed from behind. R, right kidney; A, aorta; Ar, right renal artery; Vc, inferior…

Section of the aorta, to show the action of the semilunar valve. A is intended to show the valves, represented by the dotted lines, lying near the arterial walls, represented by the continuous outer line. B (after Hunter) shows the arterial wall distended into three pouched (a), and drawn away from the valves, which are straightened into the form of an equilateral triangle, as represented by the dotted line.

Action of Semilunar Valve

Section of the aorta, to show the action of the semilunar valve. A is intended to show the valves, represented…

A portion of the systemic circulation. 1, A branch of the aorta. This terminates in the capillaries (2, 3). 2, A vein through which the impure blood is carried to the right side of the heart.

A Portion of the Systemic Circulation

A portion of the systemic circulation. 1, A branch of the aorta. This terminates in the capillaries…

"The three branches from left to right are the unnamed ones. The primitive left carotid and the subclavian left one. The small branch in the cure is the bronchial one." &mdash; Richardson, 1906

Thoracic Aorta

"The three branches from left to right are the unnamed ones. The primitive left carotid and the subclavian…

"The transverse section of the thorax. 1, anterior mediastinum; 2, internal mammary vessels; 3, triangularis sterni; 4, 5, phrenic nerves; 6, thoracic duct; 7, esophagus; 8, vena azygos major; 9, thoracic aorta; 19, sympathetic; R. V., right ventricle; R. A., right auricle; P.A., pulmonary artery; A., aorta; C., superior vena cava; V., dorsal vertebra." &mdash; Richardson, 1906

Thorax

"The transverse section of the thorax. 1, anterior mediastinum; 2, internal mammary vessels; 3, triangularis…

"Cross-section of thorax. A, bronchus, entering the lung; B, the aorta cut at its origin and again at the descending part of its arch; C, the pericardial space; D, the pleural cavity; E, the alimentary canal; PA, the pulmonary artery; X, the neural canal." &mdash;Martin, 1917

Thorax

"Cross-section of thorax. A, bronchus, entering the lung; B, the aorta cut at its origin and again at…

Diagram of a transverse section of the thorax. Labels: 1, anterior mediastinum; 2, internal mammary vessels; 3, triangularis sterni muscle; 4, right phrenic nerve between pleura and pericardium; 5, left phrenic nerve between the pleura and pericardium; 6, thoracic duct in posterior mediastrinum; 7, esophagus with left vagus in front and right vagus behind; 8, vena azygos major; 9, thoracic aorta giving off intercostal arteries; 10, gangliated cord of sympathetic; R.V., right ventricle; R.A., right auricle of heart in middle mediastinum; P.A., pulmonary artery; A., aorta; C., vena cava superior; V. dorsal vertebra.

The Thorax

Diagram of a transverse section of the thorax. Labels: 1, anterior mediastinum; 2, internal mammary…

Transverse section of the thorax. Labels: 1, anterior mediastinum; 2, internal mammary vessels; 3, triangularis sterni; 4, 5, phrenic nerves; 6, thoracic duct; 7, esophagus; 8, vena azygos major; 9, thoracic aorta; 10, sympathetic; R. V., right ventricle; R. A., right auricle; P. A. pulmonary artery; A., aorta; C., superior vena cava; V., dorsal vertebra.

Transverse Section of the Thorax

Transverse section of the thorax. Labels: 1, anterior mediastinum; 2, internal mammary vessels; 3, triangularis…

The trachea and bronchi. The thyroid body is indicated by a dotted line.

Trachea and Bronchi

The trachea and bronchi. The thyroid body is indicated by a dotted line.

The left ventricle and the commencement of the aorta laid open. Mpm, Mpl, the papillary muscles. From their upper ends are seen the cordoe tendineoe proceeding to the edges of the flaps of the mitral valve. The opening into the auricle lies between these flaps. At the beginning of the aorta are seen its three pouch-like semilunar valves.

Ventricle and Aorta Laid Open

The left ventricle and the commencement of the aorta laid open. Mpm, Mpl, the papillary muscles. From…