The respiratory system. Labels: 1, larynx; 2, trachea; 3, right lung; 4, left lung; 5, heart.
Transverse section of a rat embryo. Showing relation of the paraxial mesoderm of the head to the lateral…
Rome is the capital city of Italy and Lazio, and is Italy's largest and most populous city, with more…
Whitehall is a road in Westminster in London, England. It is the main artery running north from Parliament…
An illustration of women walking away with the man who's heart they captured by hitting them with Cupid's…
The constitution of the cardiac plexuses. Labels: Sy, cervical sympathetic cord; C.1, superior cervical…
The cavities of the right auricle and right ventricle of the heart.
The bases of the ventricle of the heart, showing the auriculoventricular, aortic, and pulmonary orifices…
Sagittal section through left shoulder, lung, and apex of the heart.
The abdominal and thoracic viscera of a five months fetus. The large liver and large size if its left…
Coca is a plant in the family Erythroxylaceae, native to north-western South America. The plant plays…
Anterior part of the circulatory system of an annelid. The arrows indicate the direction of the flow.…
Circulatory and respiratory system of the crayfish. C-heart with three pairs of ostia; Ps, pericardium;…
Heart and blood vessels of the turtle. Ad, right auricle; As, left auricle; Ao.d, right arch of the…
Diagram of the heart completely divided into right and left halves, and of a double (systematic and…
"Diagram of structure of Scopionidae (most of the appendages removed). IV. to XX., fourth to twentieth…
The skeleton of an ox. Axial Skeleton. The skull. Cranial Bones- occipital, 1: b, parietal, 2; a, frontal,…
La Sainte-Chapelle (English: The Holy Chapel) is a Gothic chapel on the Île de la Cité…
The digestive apparatus of the horse. Labels: a, mouth; 2, pharynx; 3, esophagus; 4, diaphragm; 5, spleen;…
Most famous of the Buddhist caves is a chaitya hall (chandrashala) or 'Vishwakarma cave', popularly…
Right side of the heart-laid open. Labels: 1, right ventricle; a, its external wall; b, carneae columnae;…
Left side of the heart-laid open. Labels: 1, left ventricle; a, its external wall; b, carneae columnae;…
Diagram of the circulation of the reptile. Labels: a, pulmonic, and b, somatic circulation; c, heart…
Diagram of the circulation of the fish. Labels: a, branchial circulation; b, somatic circulation; c,…
Diagram of the circulation in a crustacean. Labels: a, branchial; b, somatic circulation. On the right…
"Early Human Embryo, giving diagrammatically the principal vessels antecedent to the establishment of…
"Argent (silver), a heart gules (red), ensigned with a royal crown. In heraldry, to distinguish (a charge)…
Exterior of the Cathedral of St. Stephen, also called Stephansdom, in the heart of old Vienna. Its construction…
The Cathedral of St. Stephen, also called Stephansdom, stands in the heart of old Vienna. The Cathedral…
View of man striking the Christmas chimes at the Cathedral of St. Stephen, also called Stephansdom,…
"I long to lay this aching head and wounded heart beneath the soil, To slumber in that dreamless bed…
The White Clover ((Trifolium repens) stems are spreading, slender and creeping. The leaves are are inversely…
The White Clover ((Trifolium repens) stems are spreading, slender and creeping. The leaves are are inversely…
The class of crustacea is divided into two sub-classes, Entomostraca and Malacostraca. The first, Entomostraca,…
Crayfish, crawfish, or crawdads are freshwater crustaceans resembling small lobsters, to which they…
"Argent, a man's heart gules, ensigned with a celestial crown or. ENSIGNED. This word, in heraldic description,…
"Crankcase showing bearings. The heart of the automobile is the engine. It is built around the crankcase,…
"Longitudinal Section through a Fresh-water Mussel. a, edge of mantle; b, foot, with position of ganglion…
"Fig 55. - Actual section of the body in the thoracic region of a bird. N, neural canal; H, haemal canal;…
"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…
"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…
"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…
"This is the curve of the heart cam for converting uniform rotary motion into uniform reciprocal motion."…
The illustration is showing both inside and outside view of the tadpole. The left inside view shows…
The central part of a car wheel (or fan or propeller etc) through which the shaft or axle passes
A structure in a hollow organ like the heart with a flap to insure one-way flow of fluid through it