Outlines of Zoology and Comparative AnatomyFannin, 1874 - Всего страниц: 150 |
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Стр. 53
... terminates in the gizzard . The walls of the gizzard are very strong and muscular , especially in the grain - eating birds , who triturate their food therein with the assistance of small pebbles , instinctively swallowed for this object ...
... terminates in the gizzard . The walls of the gizzard are very strong and muscular , especially in the grain - eating birds , who triturate their food therein with the assistance of small pebbles , instinctively swallowed for this object ...
Стр. 54
... terminates . The bronchial tubes branch dichoto- mously through the lungs , and conduct the air by two large apertures into the common thoracico - abdominal cavity ( for the diaphragm is absent except in the apteryx and a few others ) ...
... terminates . The bronchial tubes branch dichoto- mously through the lungs , and conduct the air by two large apertures into the common thoracico - abdominal cavity ( for the diaphragm is absent except in the apteryx and a few others ) ...
Стр. 57
... the globe , descends towards the optic nerve , and terminates in a pully ; the pyramidalis arises from the inner aspect of the eye - ball , forms a tendon that passes E through the pully of the quadratus , and winds around Aves . 57.
... the globe , descends towards the optic nerve , and terminates in a pully ; the pyramidalis arises from the inner aspect of the eye - ball , forms a tendon that passes E through the pully of the quadratus , and winds around Aves . 57.
Стр. 59
... . - The male generative organs of birds consist of two testes , situated in the lumbar region in front of the kidneys , from each of which a vas deferens arises , and terminates in the " cloaca . " Aves . 59 Reproductive Organs.
... . - The male generative organs of birds consist of two testes , situated in the lumbar region in front of the kidneys , from each of which a vas deferens arises , and terminates in the " cloaca . " Aves . 59 Reproductive Organs.
Стр. 60
... terminates in the cloaca ; its lining membrane varies with the different functions that the successive portions of the tube are called upon to perform . Thus the mature ovulum , on escaping from the ovisac of the ovary , enters the ...
... terminates in the cloaca ; its lining membrane varies with the different functions that the successive portions of the tube are called upon to perform . Thus the mature ovulum , on escaping from the ovisac of the ovary , enters the ...
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abdomen absent alimentary canal Amphibia anal animals anus aperture aquatic auricle birds bladder blood body bones bony bony pike branchiæ branchial calcareous called canines Carnivora caudal cavity cells cervical vertebræ Cetacea chamber clavicle claws cloaca composed comprise contains coracoid covered developed Digitigrade distinct divided dorsal vertebræ eîdos eldos elongated endoskeleton external extremely feathers feet female fins fishes five toes four front ganglia ganglion gills gland hind limbs horny humerus incisors insects integument intestine larvæ legs lower jaw lungs Mammalia Mammals mandibles maxillæ membrane mollusca mouth muscles muscular nervous system nostrils organs pair pectoral peculiar pelvic arch pharynx placed plates possess present Professor Owen Quadrumana rays respiration ribs rudimentary Ruminants sacs scapula shell single Sirenia situated skin skull soft spine sternum stomach sub-kingdom tail teeth termed terminates transverse processes tubes upper jaw usually valve ventral ventricle vertebral column Vertebrata wings
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Стр. 17 - I believe that animals have descended from at most only four or five progenitors, and plants from an equal or lesser number. Analogy would lead me one step further, namely, to the belief that all animals and plants have descended from some one prototype. But analogy may be a deceitful guide. Nevertheless all living things have much in common, in their chemical composition, their germinal vesicles, their cellular structure, and their laws of growth and reproduction. We see this even in so trifling...
Стр. 149 - Cooper's Dictionary of Practical Surgery and Encyclopaedia of Surgical Science. New Edition, brought down to the present time. By SA LANE, Surgeon to St.
Стр. 18 - Therefore I should infer from analogy that probably all the organic beings which have ever lived on this earth have descended from some one primordial form into which life was first breathed by the Creator.
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Стр. 123 - The sponge represents a kind of subaqueous city, where the people are arranged about the streets and roads in such a manner that each can easily appropriate his food from the water as it passes along.
Стр. 17 - Analogy would lead me one step farther, namely, to the belief that all animals and plants are descended from some one prototype. But analogy may be a deceitful guide. Nevertheless all living things have much in common, in their chemical composition, their cellular structure, their laws of growth, and their liability to injurious influences.
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Стр. 61 - In the hind limb of most birds there is a singular extensor muscle, which arises from the pubis, ends in a tendon which passes to the outer side of the knee-joint, and terminates in the leg by uniting with the flexor digitorum perforatus. The result of this arrangement is, that the toes are flexed whenever the leg is bent upon the thigh, and, consequently, the roosting bird is held fast upon his perch by the weight of his own body.