The Essential of histologyLongmans, Green, and Company, 1916 - 563 pages |
Contents
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Common terms and phrases
alcohol alveoli appearance arborisations arteries axis-cylinder axons become blood blood-corpuscles blood-vessels bone branches Cajal canal capillaries capsule cartilage cells fig cent central centrosome ciliated coat coloured column columnar composed connective tissue connective-tissue containing corpora corpora quadrigemina corpuscles cortex cover-glass dendrons dentine developed dilute dorsal ducts elastic fibres endothelium epidermis epithelium epithelium-cells fibrils fibrous fillet flattened fluid follicle formol ganglion glands granules grey matter hæmatoxylin hair high power inner leucocytes lobules lymphatics lymphoid tissue Magnified 200 diameters medulla oblongata medullary sheath method mucous membrane muscle muscular fibres muscular tissue nerve nerve-cells nerve-fibres neuroglia non-medullated nucleus olfactory optic osmic acid outer ovum papilla pass Photograph plexus pons posterior preparation protoplasm pyramid pyramid tract ramify Ranvier reticular retina root sections seen sensory serous serous membranes SHOWING Sketch solution spermatozoa spinal cord stained structure substance surface syncytium terminal thalamus tract transverse tube tubules veins ventricle vessels xylol
Popular passages
Page 283 - The sweat-glands are abundant over the whole skin, but they are most numerous on the palm of the hand and on the sole of the foot. They are...
Page 77 - The ventricles of the brain and the central canal of the spinal cord are clothed with ciliated epithelium in the child, but in the adult it is limited to the central canal of the cord. The Cilia, or...
Page 377 - ... cortex (interlobular arteries, b), and give off at intervals small arterioles (efferent vessels of the glomeruli), each of which enters the dilated commencement of a uriniferous tubule, within which it forms a glomerulus. From the glomerulus a somewhat smaller efferent vessel passes out, and this at once again breaks up into capillaries, which are distributed amongst the tubules of the cortex («) ; their blood is collected by veins which accompany the arteries and join the venous arches between...
Page 45 - ... a hollow cell the nucleus of which has multiplied. The new nuclei are arranged around the wall of the cavity, the corpuscles in which have now become discoid ; c shows the mode of union of a
Page 270 - In some parts of the body (scrotum, penis, nipple, and areola), involuntary muscular tissue occurs in the deeper portions of the cutis vera, and in addition, wherever hairs occur, small bundles of this tissue are attached to the hair-follicles. The blood-vessels of the skin are distributed almost entirely to the surface, where they form a close capillary network, sending up loops into the papillae.
Page 110 - ... and lower jaw, to allow greater freedom •of movement whilst diminishing the liability to dislocation. Under the microscope white fibro-cartilage looks very like fibrous tissue, but its cells are cartilage-cells, not tendon-cells (figs.
Page 209 - ... and the section of the smaller artery. 5. Transverse section of vena cava inferior. Notice the comparatively thin layer of circular muscle, and outside this the thick layer of longitudinal muscular bundles. Make sketches from 1, 4, and 5, under a low power, from 2 and 3 under a high power. An artery is usually described as being composed of three coats, an inner or elastic, a middle or muscular, and an external or areolar (fig.
Page 118 - The periosteum, which is best studied in sections from a bone which has been decalcified in chromic or picric acid, is a fibrous membrane composed of two layers, the inner of which contains many elastic fibres. In the outer layer numerous blood-vessels ramify and send from it branches to the Haversian canals of the bone. The periosteum ministers to the nutrition of the bone, partly on account of the bloodvessels...
Page 69 - ... the heart, blood-vessels, and lymphatics. When occurring on internal surfaces, such as those of the serous membranes, blood-vessels, and lymphatics, it is spoken of as endothelium or (sometimes) mesothelium.
Page 107 - XL § 2 ; or they may be placed for an hour in •"> per cent, osmic acid), and mount in glycerine. Sketch a part of a transverse section under a low power and a cell-group from one of the tangential sections under a high power. Notice especially the arrangement of the cells, somewhat concentric near the surface but radial near the centre. The costal cartilages tend as age advances to become ossified...