A Treatise on Anatomy, Physiology, and Hygiene: Designed for the Colleges, Academies, and FamiliesBenjamin B. Mussey and Company, 1854 - 466 σελίδες |
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Σελίδα 14
... substances are formed by chemical laws alone , we see no case of an animal or plant coming into existence by accident or chance , or chemical opera- tions . 8. Animals and plants are supported by means of nourish- ment , and die without ...
... substances are formed by chemical laws alone , we see no case of an animal or plant coming into existence by accident or chance , or chemical opera- tions . 8. Animals and plants are supported by means of nourish- ment , and die without ...
Σελίδα 15
... substance be separated into two or more divisions , neither of them can be considered an individual . Closely associated with this is the power of life , or vitality , which is the most distinguishing characteristic of organic structure ...
... substance be separated into two or more divisions , neither of them can be considered an individual . Closely associated with this is the power of life , or vitality , which is the most distinguishing characteristic of organic structure ...
Σελίδα 15
... substances are formed by chemical laws alone , we see no case of an animal or plant coming into existence by accident or chance , or chemical opera- tions . 8. Animals and plants are supported by means of nourish- ment , and die without ...
... substances are formed by chemical laws alone , we see no case of an animal or plant coming into existence by accident or chance , or chemical opera- tions . 8. Animals and plants are supported by means of nourish- ment , and die without ...
Σελίδα 15
... substance be separated into two or more divisions , neither of them can be considered an individual . Closely associated with this is the power of life , or vitality , which is the most distinguishing characteristic of organic structure ...
... substance be separated into two or more divisions , neither of them can be considered an individual . Closely associated with this is the power of life , or vitality , which is the most distinguishing characteristic of organic structure ...
Σελίδα 17
... substances enter into the structure of the human body ? Are they essentially the same ? 18. What is said of these substances at differ- ent periods of life ? 19. What offices do the fluids of the system perform ? 20. What is said of the ...
... substances enter into the structure of the human body ? Are they essentially the same ? 18. What is said of these substances at differ- ent periods of life ? 19. What offices do the fluids of the system perform ? 20. What is said of the ...
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Άλλες εκδόσεις - Προβολή όλων
Συχνά εμφανιζόμενοι όροι και φράσεις
absorption anatomy animal aorta auricle become body bones brain called into action carbonic acid cartilages cause cavities cellular chest child chyle chyme circulation coat cold color composed compressed contraction cuticle Describe diaphragm digestive organs diminished disease divided duct duodenum effect elbow exercise Explain fig external fingers fluid frequently functions Give glands glottis heart heat HYGIENE illustrated impure blood influence injury intestine joints labor lacteals larynx layer left auricle ligaments liver lower extremities lungs lymphatic vessels mastication matter mouth movements mucous membrane muscles muscular fibres nerves nervous system nutrient nutrition Observation oxygen papillæ person physiology portion position prevent produced proper pulmonary artery pupils quantity of food removed respiration respiratory ribs right auricle secretion secretory organs sensation side skin spinal column sternum stimulating stomach structure substances supplied surface teeth tendons thoracic duct tion tissue trachea trunk ulna upper valves veins vocal
Δημοφιλή αποσπάσματα
Σελίδα 234 - I counted the perspiratory pores on the palm of the hand, and found 3528 in a square inch. Now, each of these pores being the aperture of a little tube of about a quarter of an inch long, it follows that in a square inch of skin on the palm of the hand, there exists a length of tube equal to 882 inches, or 73i feet.
Σελίδα 236 - Now, the number of square inches of surface in a man of ordinary height and bulk is 2500 ; the number of pores, therefore, 7,000,000, and the number of inches of perspiratory tube 1,750,000, that is, 145,833 feet, or 48,600 yards, or nearly twenty-eight miles.
Σελίδα 393 - MK CROSS. THE OPERA CHORUS BOOK, Consisting of Trios, Quartets, Quintets, Solos, and Choruses, selected and arranged from the most popular Operas of Von Weber, Rossini, Meyerbeer, Bellini, Benedict, Donizetti, Mercadante, Auber, Balfe, Verdi, and Bishop. By EDWARD L. WHITE and JOHN E. GOULD. [ We select the following from numerous Notices of this Work
Σελίδα 236 - To obtain an estimate of the length of tube of the perspiratory system of the whole surface of the body, I think that 2800 might be taken as a fair average of the number of pores in the square inch, and 700, consequently, of the number of inches in length.
Σελίδα 236 - On the pulps of the fingers, where the ridges of the sensitive layer of the true skin are somewhat finer than in the palm of the hand, the number of pores on a square inch a little exceeded that of the palm ; and on the heel, where the ridges are coarser, the number of pores on the square inch was 2268, and the length of tube 567 inches, or 47 feet.
Σελίδα 296 - Precisely analogous phenomena occur when, from intense mental excitement, the brain is kept long in a state of excessive activity. The only difference is, that we can always see what happens in the eye, but rarely what takes place in the brain. Occasionally, however, cases of fracture of the skull occur, in which...
Σελίδα 394 - Collection, the Book is exactly what is wanted at this time; and it will be taken as a favor to the musical public, inasmuch as it cannot fail to be a great acquisition for practice, and a means of creating a better taste. A book got at with such good properties, cannot fail to be well received.
Σελίδα 289 - To those I address, it is unnecessary to go farther, than to indicate that the nerves treated of in these papers are the instruments of expression, from the smile upon the infant's cheek to the last agony of life. It is when the strong man is subdued by this mysterious influence of soul on body, and when the passions may be truly said to tear the breast, that we have the most afflicting picture of human frailty, and the most unequivocal proof, that it is the order of functions which we have been...
Σελίδα 296 - At any time of life, excessive and continued mental exertion is hurtful ; but in infancy and early youth, when the structure of the brain is still immature and delicate, permanent mischief is more easily inflicted by injudicious treatment than at any subsequent period...
Σελίδα 395 - Pestalozzian System of Instruction ; with numerous Exercises, intended to supersede (in part) the necessity of the Black-board. By EDWARD L. WHITE and JOHN E. GOULD. " This Work is just the thing for Schools, Juvenile Concerts, &c. \ consisting of Songs, Hymns, and Chants, with appropriate Music, designed for the use of Common Schools, Seminaries, &c., to which is prefixed the elements of Vocal Music. In many of the Public Schools out of the city, as well as 'in, Music has recently constituted a...