Left side of the heart, showing the left auricle (atrium) and left ventricle).
Branchi of the lungs, the heart, and blood vessels. Labels: 1, left auricle; 2, right auricle; 3, left…
The right auricle (atrium) and ventricle of the heart opened, and a part of their right and anterior…
Semilunar valves of the heart. The blood received by the left ventricle through the auriculo-ventricular…
Diagram of a transverse section of the thorax. Labels: 1, anterior mediastinum; 2, internal mammary…
Diagram showing the circulation of blood in the heart. Let a represent the right side of the…
Diagram showing the compartments of the heart. The smaller compartments are the auricles (also known…
A representation of the heart as it really appears showing the front view. At a is the right…
The heart, showing its relative position to the lungs. The heart is almost wholly covered up by the…
The diaphragm, which is the principal muscle that act sin breathing. Here you have the cavity of the…
Diagram of the Body opened from the front to show the contents of the ventral cavity. Labels: d, diaphragm;…
Diagrammatic longitudinal section of the Body. Labels: a, the neural tube, with its upper enlargement…
Cardiac muscular tissue, magnified about 400 diameters. The cell-boundaries and cell-nuclei are indicated…
The left ventricle and the commencement of the aorta laid open. Mpm, Mpl, the papillary muscles. From…
Diagram of the blood vascular system, showing that it forms a single closed circuit with two pumps in…
Diagram to illustrate the mode of action of the valves of the veins. Labels: C, the capillary end, and…
Leaves - simple; alternate; edge entire. Outline - round heart-shape. Apex - tapering and rather blunt,…
Leaves - simple/alternate; edge somewhat irregularly very sharp-toothed. Outline - rounded, often very…
Leaves - simple/alternate; edge somewhat irregularly very sharp-toothed. Outline - rounded, often very…
Leaves - simple/alternate; edge somewhat irregularly very sharp-toothed. Outline - rounded, often very…
Leaves - simple; alternate; edge distinctly toothed when mature; sometimes near three-lobed Outline…
Leaves - simple; alternate (and in alternate bunches); edge unevenly sharp-toothed (with five to nine…
Leaves - simple; alternate; edge very sharply and finely toothed. Outline - long oval, long egg-shape,…
Leaves - simple; alternate; edge sharply and often doubly toothed. Outline - oval or egg-shaped, or…
Leaves - simple; alternate; edge sharply and doubly toothed. Outline - oval or long egg-shape. Apex…
Leaves - simple; alternate; edge sharp-toothed, but entire at the base. Outline - obliquely egg-shaped,…
Leaves - simple; alternate; edge coarsely and somewhat irregularly toothed; or, at times, unequally…
Leaves - simple; alternate; edge irregularly sharp-toothed, or, at times unequally and very variously…
Leaves - simple; alternate; edge variable, either coarse-toothed or somewhat lobed; with the teeth or…
Leaves - simple; alternate; edge sharply and unequally double-toothed. Outline - egg-shaped. Apex -…
Leaves - simple; alternate (often alternate in pairs); edge very sharply, unequally, and rather coarsely…
Leaves - simple; alternate; edge finely and sharply double-toothed. Outline - egg-shape. Apex - pointed.…
Leaves - simple; alternate; edge very sharply and slightly irregularly and unequally toothed. Outline…
Leaves - simple; alternate; edge very sharply and quite irregularly and unevenly toothed. Outline -…
Leaves - simple; alternate; edge sharp-toothed, with small and remote teeth. Outline - oval or egg-shape.…
Leaves - simple; alternate; edge sharp-toothed, with rounded hollows between. Outline - rounded. Apex…
Leaves - simple; alternate; edge large-toothed, with the hollows rounded. Outline - wide egg-shape.…
Leaves - simple; alternate; edge toothed. Outline - roundish egg-shape. Apex - usually blunt (never…
Leaves - simple; alternate; edge toothed. Outline - egg-shape. Apex - taper-pointed. Base - heart-shape.…
Leaves - simple; alternate; edge usually lobed (the lobes toothed). Outline - broad egg-shape. Apex…
Leaves - simple; alternate; edge lobed (lobes entire). Outline - rounded. Apex - cut almost squarely…
Leaves - simple; alternate; edge slightly lobed at the upper part (edge of the lobes entire). Outline…
Leaves - simple; alternate; edge deeply lobed (lobes finely and sharply toothed throughout). Outline…
Leaves - simple; opposite; edge entire. Outline - broad egg-shape or heart-shape. Apex - pointed. Base…
Leaves - simple, opposite; edge lobed, with the lobes very finely sharply toothed. Outline - rounded…
Leaves - simple; opposite; edge lobed, with the lobes very sparingly and coarsely sharp-toothed or the…
Leaves - simple; opposite; edge lobed, with the lobes very sparingly and coarsely sharp-toothed or the…
Leaves - simple; opposite; edge deeply lobed, with the lobes unequally notched and toothed. Outline…
Leaves - simple; opposite; edge lobed, with the lobes irregularly sharp-toothed and notched. Outline…
Leaves - simple; indeterminate in position because of their smallness and closeness. They are arranged…
Leaves - compound (odd-feathered, but with the odd leaflet often dwarfed or broken off; leaflets, twenty-one…
Leaves - unequally twice-compound (odd-feathered; leaflets very numerous - seven to thirteen on the…
Leaves - compound (odd-feathered; leaflets eleven to thirty-one); alternate; edge of leaflets evenly…
Leaves - compound (odd-feathered; leaflets, thirteen to twenty-one); alternate; edge of leaflets sharp-toothed.…
Leaves - compound (odd-feathered; leaflets, fifteen to seventeen); alternate; edge of leaflets sharp-toothed.…
Leaves - compound (odd-feathered; leaflets, seven to eleven); alternate; edge of leaflet sharp-toothed.…
Transverse section of the thorax. Labels: 1, anterior mediastinum; 2, internal mammary vessels; 3, triangularis…