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Scheme showing the connection of the several parts to the brain.

Brain

Scheme showing the connection of the several parts to the brain.

"Diagram illustrating the general relationships of the parts of the brain. A, fore-brain; b, midbrain; B, cerebellum; C, pons Varolii; D, medulla oblongata; B, C, and D together constitute the hind-brain." —Martin, 1917

Brain

"Diagram illustrating the general relationships of the parts of the brain. A, fore-brain; b, midbrain;…

"The brain from the left side. Cb, the cerebral hemispheres forming the main bulkl of the fore-brain; Cbl, the cerebellum; Mo, the medulla oblongata; P, the pons Varolii; *, the fissure of Sylvius; Ro, the fissure of Rolando; Po, the Parieto-occipital fissure." —Martin, 1917

Brain

"The brain from the left side. Cb, the cerebral hemispheres forming the main bulkl of the fore-brain;…

"Diagram of the left half of a vertical median section of the brain. H, H, convoluted inner surface of left cerebral hemisphere; Cc, corpus callosum; Th, optic thalamus; c.q., corpora quadrigemina; Cb, cerebellum; Sp.c, spinal cord; Mo, medulla oblongata; P, pons Varolii; oc, oculo-motor nerve; pt, pituitary body; op, optic nerve; Ro, fissure of Rolando; Po, parieto-occipital fissure; Fr, frontal lobe; Pa, parietal lobe; O, occipital lobe." —Martin, 1917

Brain

"Diagram of the left half of a vertical median section of the brain. H, H, convoluted inner surface…

Anterior view of the brain and spinal marrow. Labels: 1, 1, hemispheres of the cerebrum; 2, great middle fissure; 3, cerebellum; 4, olfactory nerves; 5, optic nerves; 6, corpora albicantia; 7, motor oculi nerves; 8, pons Varolii; 9, fourth pair of nerves; 10, lower portion of the medulla oblongata; 11, 11, medulla spinalis in its whole length; 12, 1, spinal nerves; 13, cauda equina.

Brain and Spinal Cord

Anterior view of the brain and spinal marrow. Labels: 1, 1, hemispheres of the cerebrum; 2, great middle…

Human fetus in the third month of development, with the brain and spinal cord exposed from behind.

Brain and Spinal Cord of Fetus

Human fetus in the third month of development, with the brain and spinal cord exposed from behind.

Schema showing the connections of the several parts of the brain.

Connection of the Brain Parts

Schema showing the connections of the several parts of the brain.

The base of the brain. Labels: 1, longitudinal fissure; 2, 2, anterior lobes of cerebrum; 3, olfactory bulb; 7, optic commissure; 9, 3rd nerve, ; 11, 4th nerve; 13, 5th nerve; 14, crura cerebri, 15, 6th nerve; 16, pons Varolii; 17, 7th nerve; 19, 8th nerve; 20, medulla oblongata; 21, 9th nerve, 23, 10th nerve; 25, 11th nerve; 27, 12th nerve; 28, 29, 30, 31, 32, cerebellum.

Base of Brain

The base of the brain. Labels: 1, longitudinal fissure; 2, 2, anterior lobes of cerebrum; 3, olfactory…

Base of the Brain. Labels: 1,2, longitudinal fissure; 3, anterior lobes cerebrum; 4, middle lobe; 5, fissure Sylvius; 6, posterior lobe; 7, infundibulum; 8, its body; 9, corporo albicantia; 10, cineritious matter; 11, crura cerebri; 12, pons Varolii; 13, medulla oblongata; 14, posterior prolongation of pons; 15, middle of cerebellum; 16, anterior part of cerebellum; 17, its posterior part and fissure; 18, medulla spinalis; 19, middle fissure medulla; 20, pyramidal body; 21, retiform body; 22, olivary body; 23, olfactory nerve; 24, its bulb; 25, its external root; 26, middle root; 27, internal root; 28, 29, optic nerve; 30, third nerve; 31, fourth nerve; 32, fifth nerve; 33, sixth nerve; 34, facial nerve; 35, auditory nerve; 36, 37, 38, eighth nerve.

Base of the Brain

Base of the Brain. Labels: 1,2, longitudinal fissure; 3, anterior lobes cerebrum; 4, middle lobe; 5,…

<em>A</em>, anterior lobe of the cerebellum; <em>B</em>, olfactory nerve; <em>C</em>, portion of the posterior lobe; <em>D</em>, optic chiasm; <em>E</em>, optic tract; <em>H, M,</em> hemispheres of the cerebellum; <em>K</em>, portion of the occipital lobe; <em>N</em>, medulla oblongata; <em>R</em>, pons Varolii."

Base of the brain

A, anterior lobe of the cerebellum; B, olfactory nerve; C, portion of the…

"Arteries and their Branches at the Base of the Brain." &mdash; Blaisedell, 1904

Blood vessels of the brain

"Arteries and their Branches at the Base of the Brain." — Blaisedell, 1904

"<em>A</em>,frontal love of the cerebrum; <em>B</em>, parietal lobe; <em>C</em>, parieto-occipital lobe; <em>D</em>, occcipital lobe; <em>E</em>, cerebellum; <em>F</em>; arbor vitae; <em>H</em>, pons Varolii; <em>K</em>, medulla oblongata." — Blaisedell, 1904

Left Half of the Brain

"A,frontal love of the cerebrum; B, parietal lobe; C, parieto-occipital lobe;…

"The brain seen from the side, showing the three principal divisions." &mdash; Ritchie, 1918

Side view of the brain

"The brain seen from the side, showing the three principal divisions." — Ritchie, 1918

Section through the kidney showing the medullary and cortical portions, and the beginning of the ureter. Labels: ct, cortex; M, medulla; py, papilla of pyramidal section projecting into one of the calices of pelvis; RA, renal artery; RV, renal vein; U, ureter.

Section through the Kidney

Section through the kidney showing the medullary and cortical portions, and the beginning of the ureter.…

Section through the right kidney from its outer to its inner border. Labels: 1, cortex; 2, medulla; 2' , pyramid of Malpighi; 2", pyramid of Ferrein; 5, small branches of the renal artery entering between the pyramids; A, a branch of the renal artery; D, the pelvis of the kidney; U, ureter; C, a calyx.

Section of the Right Kidney

Section through the right kidney from its outer to its inner border. Labels: 1, cortex; 2, medulla;…

Two section through the junction between the cord and medulla of the Orang. A is at a slightly lower level than B.

Section Through the Junction of the Medulla and Cord of the Orang

Two section through the junction between the cord and medulla of the Orang. A is at a slightly lower…

Transverse section through the human medulla in the lower olivary region.

Section Through Medulla in Olivary Region

Transverse section through the human medulla in the lower olivary region.

Transverse section through the the middle of the olivary region of the human medulla or bulb.

Section Through Medulla in Olivary Region

Transverse section through the the middle of the olivary region of the human medulla or bulb.

"The spinal cord and medulla oblongata. A, from the ventral, and B, from the dorsal aspect; C to H, cross-sections at different levels." &mdash;Martin, 1917

Medulla Oblongata

"The spinal cord and medulla oblongata. A, from the ventral, and B, from the dorsal aspect; C to H,…

Back view of the medulla, pons, and mesencephalon of a full term human fetus.

Back View of Medulla, Pons, and Mesencephalon

Back view of the medulla, pons, and mesencephalon of a full term human fetus.

Front view of the medulla, pons, and mesencephalon of a full term human fetus.

Front view of Medulla, Pons, and Mesencephalon

Front view of the medulla, pons, and mesencephalon of a full term human fetus.

Lateral view of the medulla, pons, and mesencephalon of a full term human fetus.

Lateral View of Medulla, Pons, and Mesencephalon

Lateral view of the medulla, pons, and mesencephalon of a full term human fetus.

Transverse section through the closed part of the human medulla immediately above the decussation of the pyramids.

Transverse Section Through Closed Part of Medulla

Transverse section through the closed part of the human medulla immediately above the decussation of…

Transverse section through the closed part of the fetal medulla immediately above the decussation of the pyramids.

Transverse Section Through Closed Part of Fetal Medulla

Transverse section through the closed part of the fetal medulla immediately above the decussation of…

Transverse section through the lower end of the medulla of a full term fetus.

Transverse Section Through the the Medulla

Transverse section through the lower end of the medulla of a full term fetus.

"Part of the nervous system viewed in front." —Davison, 1910

Nervous System

"Part of the nervous system viewed in front." —Davison, 1910

Section through the lower part of the human pons varolii immediately above the medulla.

Section Through Pons Varolii

Section through the lower part of the human pons varolii immediately above the medulla.

The spinal cord and medulla oblongata. Labels: A, from the ventral, and B, from the dorsal aspect; C to H, cross-sections at different levels.

The Spinal Cord and Medulla Oblongata

The spinal cord and medulla oblongata. Labels: A, from the ventral, and B, from the dorsal aspect; C…