Human Physiology: An Elementary Text-book with Special Emphasis on Hygiene and Sanitation |
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Human Physiology: An Elementary Text-Book of Anatomy, Physiology, and Hygiene John W 1871-1943 Ritchie No preview available - 2016 |
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abdominal acid afferent afferent nerve air sacs alcohol alimentary canal amount animals arteries atoms auricle bacteria bath blood vessels bones brain and cord breathing called capillaries carbohydrates carbon dioxid carried cartilage cause cavity cent cerebellum cerebrum clothing cold composed connective tissue contains contract diaphragm digestive organs diphtheria disease germs drink eating effect efferent enzymes epidermis exercise fever function gastric juice germs give grow hair heart human body impulses injured keep kidneys kind larynx layer ligaments limbs liver living lungs lymph medulla membrane milk molecules mosquitoes mouth muscle cells nerve cells nerve fibers nervous system oxygen pass periosteum person poison protein ptyalin reflex renal corpuscle skeleton skin sleep small intestine spinal column spinal cord starch stomach substance sugar sweat glands sympathetic teeth temperature tendons thoracic cavity tobacco tubes tubules veins ventilation ventricles vertebrates vocal cords walls warm wastes
Popular passages
Page 262 - The iris lies behind the transparent cornea, and being seen through the cornea, gives the color to the eye. A person is black-eyed, browneyed, or blue-eyed, according to the pigment in his iris. The Function of the Iris. The function of the iris is to regulate the amount of light that enters the eye. In the iris are circular muscle fibers, running around the pupil, and when these contract, they make the pupil smaller. Other muscle fibers run in from the outer edge of the iris to the pupil, and when...
Page 222 - Sow a thought and reap an act ; sow an act and reap a habit ; sow a habit and reap a character ; sow a character and reap a destiny.
Page 37 - Each has a large bone in the upper part, the humerus in the arm, and the femur in the thigh. Each has two bones in the lower part, the radius and the ulna in the forearm, and the tibia and fibula in the leg below the knee. In both the wrists and the ankles we find a group of small bones, the eight carpal bones in the wrist, and the seven tarsal bones in the ankle. In the hand beyond the carpals are five metacarpal bones, each bearing a finger, and in the foot beyond the tarsals are five metatarsal...
Page 253 - The bones of the ear. Across the middle ear a chain of three small bones stretches from the tympanic membrane to the inner ear. These bones are called from their shape the malleus (hammer), the incus (anvil), and the stapes (stirrup). The malleus is...
Page 99 - Anatomy of the liver. — The liver is the largest gland in the body. It is of a reddish brown color and weighs about three and one half pounds.
Page 144 - ... from the right auricle into the right ventricle; from the right ventricle by the way of the lungs into the left auricle; thence into the left ventricle and aorta; whence by the arteries at large through the pores or interstices of the tissues into the veins, and by the veins back again with great rapidity to the base of the heart.