Animal Locomotion: Or Walking, Swimming, and Flying, with a Dissertation on AeronauticsD. Appleton, 1882 - 264 páginas |
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Página 9
... trunk in forward motion . In like manner the foot which is off the ground and swinging forward pendulum fashion in space , may be said to roll or rotate upon the trunk , the head of the femur forming the centre of a circle the radius of ...
... trunk in forward motion . In like manner the foot which is off the ground and swinging forward pendulum fashion in space , may be said to roll or rotate upon the trunk , the head of the femur forming the centre of a circle the radius of ...
Página 10
... trunk and in the extremities . Without this movement , the momentum acquired by the different portions of the moving mass could not be utilized . As the momentum acquired by animals in walking , swimming , and flying forms an important ...
... trunk and in the extremities . Without this movement , the momentum acquired by the different portions of the moving mass could not be utilized . As the momentum acquired by animals in walking , swimming , and flying forms an important ...
Página 23
... trunk . It permits of the several motions of the limbs termed pronation , supination , flexion , extension , abduction , adduc- tion , and revolution upon the axis of the limb or bone about a conical area , whose apex is the axis of the ...
... trunk . It permits of the several motions of the limbs termed pronation , supination , flexion , extension , abduction , adduc- tion , and revolution upon the axis of the limb or bone about a conical area , whose apex is the axis of the ...
Página 26
... trunks of animals with a view to operating in masses . For this purpose they are arranged in cycles , there being what are equivalent to extensor and flexor cycles , abductor and adductor cycles , and pronator and supina- tor cycles ...
... trunks of animals with a view to operating in masses . For this purpose they are arranged in cycles , there being what are equivalent to extensor and flexor cycles , abductor and adductor cycles , and pronator and supina- tor cycles ...
Página 27
... trunk and extremities are so disposed with regard to the bones or osseous levers , that they in every case produce a maximum result with a minimum of power . The origins and insertions of the muscles , the direction of the muscles and ...
... trunk and extremities are so disposed with regard to the bones or osseous levers , that they in every case produce a maximum result with a minimum of power . The origins and insertions of the muscles , the direction of the muscles and ...
Outras edições - Ver tudo
Animal Locomotion: Or, Walking, Swimming, and Flying, with a Dissertation on ... James Bell Pettigrew Visualização integral - 1885 |
Animal Locomotion, Or, Walking, Swimming, and Flying: With a Dissertation on ... James Bell Pettigrew Visualização integral - 1874 |
Animal Locomotion: Or, Walking, Swimming and Flying, with a Dissertation on ... James Bell Pettigrew Visualização integral - 1893 |
Palavras e frases frequentes
action aërial animals arrangement artificial wave wing artificial wing ascends ball-and-socket joint bat and bird biped blades body bones Borelli Compare with fig concave dead points depressed described downward dugong elastic bands elastic ligaments elbow-joint elevating and propelling elytra extended feathers feet fish flexed flexion flight flying foot force fore gannet gliding gravity hind horizontal direction humerus inclined planes increased insect insect wing kite less lever limbs locomotion long axis machine manner Marey motion move movements muscles muscular muscular system natural wing oblique oscillate ostrich pectoral fins pinion piston porpoise portions position posterior margin posterior or thin produced quadruped rapidity remarkable resistance reverse rigid root rotation sail screw shoulder-joint side Sir George Cayley speed spiral superior band swimming tail thick margin tion trunk universal joint upward direction upwards and forwards velocity vertical vibrate walking waved track wedge weight wing descends