Physiology Primer |
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abdomen alcohol and tobacco animals artery bad effect become blood blood-vessels body bones bony brain breathing called canal capillaries careful carry causes cavity changes CHAPTER chest circulation clothing contain cord covering delicate Describe digestion diseases easily effects of alcohol especially example excessive exercise face five flow forced fresh Give hand hard head hearing heart hollow human important impure injurious Intestine joints keep kinds knowledge lead limbs lining lower lungs material messages mouth move muscles Name narcotic necessary nerves nervous system nose organs PHYSIOLOGY pores principal produced proper protect pupil pure QUESTIONS FOR REVIEW ribs running sense shape shoulder side sight skin skull smaller smell smoking soft sounds spinal stimulants stomach structure substance taken taste teeth tell tiny tissue toes trunk upper waste matter
Popular passages
Page 70 - ... of the will : they act involuntarily. The Nervous System is a most complicated, wonderful, and mysterious arrangement, which is ever being studied and investigated by innumerable physicians and men of science, because by it one really first becomes acquainted with many of the conditions of life. The principal parts of the nervous system are the brain, the spinal cord, and the nerves. The Brain is enclosed in the cavity of the skull, and consists of a greyish-white soft smooth mass formed of nerve...
Page 57 - ... layers are exceedingly abundant and powerful, and its contractions accordingly are rapid and energetic. While, therefore, the food during digestion passes but slowly and gradually through the stomach, the blood is propelled by the contractions of the heart in a forcible and impetuous stream. The heart is situated in the middle of the chest, between the two lungs, and almost directly behind the breast.bone. It is a little larger than the clenched fist. It is somewhat conical in form, being wide...
Page 67 - We can breathe through either the nose or the mouth, but it is better to breathe through the nose alone, because then the air is first warmed and we are not so apt to take cold.
Page 2 - Entered, according to Act of Congress, in the year 1902, by ELDREDGE & BROTHER, in the Office of the Librarian of Congress, at Washington.
Page 53 - A VIEW OF THE PERMANENT TEETH. — 1, Incisors ; 2, canines ; 3, bicuspids ; 4, molars ; 5, wisdom teeth ; 6, the crown ; 7, the fang, or root.
Page 27 - The bones also protect important organs, thus, the skull protects the brain ; the spinal column protects the spinal cord ; the ribs and breast-bone protect the heart and lungs.
Page 13 - The trunk is divided into two parts. The upper part is called the chest and the lower part the abdomen.
Page 56 - If we examine it with a microscope, we find that it is made of a colorless liquid in which thousands of tiny solid bodies are floating.
Page 60 - This artery divides up into smaller and smaller branches which carry the blood to all parts of the body. In the...
Page 62 - It gathers up the waste matter from all parts of the body and carries it to the lungs and other organs, which cast it out.