Outlines of Zoology and Comparative AnatomyFannin, 1874 - Всего страниц: 150 |
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Стр. 31
... bladder . There are three distinct forms of stomach seen in this class , viz . , simple , compound , and complex . The simple stomach consists of a single cavity , and is met with in Bimana , Quadrumana , Carnivora , and in some of the ...
... bladder . There are three distinct forms of stomach seen in this class , viz . , simple , compound , and complex . The simple stomach consists of a single cavity , and is met with in Bimana , Quadrumana , Carnivora , and in some of the ...
Стр. 42
... bladder . 2. Multungulates ( multa , many , and ungulæ , hoofs ) comprise the rhinoceroses and tapirs . Rhinoceroses are very large , heavy animals ; the feet have each three toes ; they have one , or , it may be , two horns ; when two ...
... bladder . 2. Multungulates ( multa , many , and ungulæ , hoofs ) comprise the rhinoceroses and tapirs . Rhinoceroses are very large , heavy animals ; the feet have each three toes ; they have one , or , it may be , two horns ; when two ...
Стр. 53
... vena porta of Mammals . Two distinct sets of ducts convey the bile from this organ ; the first conduct the bile to the gall bladder , from which another duct pro- ceeds to the duodenum ; the second go directly to Aves . 53.
... vena porta of Mammals . Two distinct sets of ducts convey the bile from this organ ; the first conduct the bile to the gall bladder , from which another duct pro- ceeds to the duodenum ; the second go directly to Aves . 53.
Стр. 54
... bladder is absent in some birds , as the ostrich , pigeon , parrot , and toucan . The pan- creas , from which emanate generally two or three pancreatic ducts , is large and well developed ; the spleen is small ; the kidneys are long ...
... bladder is absent in some birds , as the ostrich , pigeon , parrot , and toucan . The pan- creas , from which emanate generally two or three pancreatic ducts , is large and well developed ; the spleen is small ; the kidneys are long ...
Стр. 74
... bladder is wanting ; the aperture of the cloaca is transverse . The tongue is bifid and protrusible at will , and , when pro- truded , is in constant vibration ; it is composed of two muscular cylinders united at their base , and is an ...
... bladder is wanting ; the aperture of the cloaca is transverse . The tongue is bifid and protrusible at will , and , when pro- truded , is in constant vibration ; it is composed of two muscular cylinders united at their base , and is an ...
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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...
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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.