Human Body: A Text-book of Anatomy, Physiology and Hygiene |
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abdominal acid afferent nerves albumin alcohol alimentary canal amount animal aorta apparatus artery attached auricle bile blood corpuscles blood vessels bones bony brain branches breathing called capillaries carbon dioxide cartilage centre chest color connective tissue consists contains contraction dermis diaphragm digestion disease dorsal duct elastic energy epidermis fibrin foot front give glands glass gullet heart heat HUMAN BODY humerus inches joint kidney lacteals larynx layer ligaments limbs liver lower lungs lymph lymphatics material microscope mouth movement mucous membrane muscles muscular nerve cells nerve fibres nitrogen nose organs outer oxidation oxygen papillæ pass pharynx portion posterior proteids pulmonary respiration retina ribs salt secretion seen sensation side skeleton skin skull small intestine solution spinal cord starch stimulate stomach structure substances surface teeth tendon thin tion toes tongue trunk tube upper valves veins ventral cavity ventricle vertebral vertebral column walls
Popular passages
Page 268 - ... and is measured by observing the least distance which must separate two objects (as the blunted points of a pair of compasses) in order that they may be felt as two. The following table illustrates some of the differences observed: Tongue-tip l.lmm.
Page 263 - The ear (Fig. 136) consists of three portions, known respectively as the external ear, the middle ear, and the internal ear or labyrinth. The latter is the essential hearing organ since it contains the ends of the auditory nerve fibres.
Page 168 - The human heart lies with its apex touching the chest-wall between the fifth and sixth ribs on the left side of the breast-bone. At every beat a sort of tap known as the "cardiac impulse," or "apex beat," may be felt by placing the finger at that point.
Page 173 - Every inch of the arterial system may, in fact, be considered as converting a small fraction of the heart's jerk into a steady pressure, and when all these fractions are summed up together in the total length of the arterial system no trace of the jerk is left. As the effect of each . systole becomes diminished in the smaller vessels by the causes above mentioned, that of this constant pressure becomes more obvious, and gives rise to a steady passage of the fluid from the arteries towards the veins....
Page 324 - ... and whose brain was instantaneously evolved from the skull by the crash. The brain itself, entire, was before me within three minutes after death. It exhaled the odor of spirit most distinctly, and its membranes and minute structures were vascular in the extreme. It looked as if it had been recently injected with vermillion.