Identifier: horseinmotionass01stil (find matches)
Title: The horse in motion : as shown by instantaneous photography : with a study on animal mechanics founded on anatomy and the revelations of the camera : in which is demonstrated the theory of quadrupedal locomotion
Year: 1882 (1880s)
Authors: Stillman, J. D. B. (Jacob Davis Babcock), 1819-1888 Muybridge, Eadweard, 1830-1904
Subjects: Horses Horses Animal locomotion
Publisher: Boston : J.R. Osgood
Contributing Library: Boston Public Library
Digitizing Sponsor: Boston Public Library

View Book Page: Book Viewer
About This Book: Catalog Entry
View All Images: All Images From Book
Click here to view book online to see this illustration in context in a browseable online version of this book.

Text Appearing Before Image:
ion of this muscle cannot be represented by any abstractterms. It has two functions: it lifts the leg when the act ofpropulsion is complete, flexing the leg upon the thigh until theline perpendicular from the centre of motion is passed, when itrelaxes, while the extensor proper of the leg, the tjnceps feinoins ((, /),carries the foot to a new position in advance. As soon as the footis upon the ground and the limb feels the weight thrown upon it,then the full power of this muscle is called into play, no longer asa flexor, and not as an extensor, nor even as a propeller, but as asupporter, which character it performs until the direction of its fibrespasses the perpendicular, when they cease to act until the next stridebegins, so that when the foot is off the ground in the first quarterof the stride it is a flexor; it is inactive in the second quarter,and a supporter in the third, while it plays no part in the fourth.The importance of the proper understanding of the action of this, vr, i
Text Appearing After Image:
BOSTOH FTTDI^O LIBEAEX. POSiEEiOE ±;XTl-hl-lIrr EXPOSIITC-THE DE tFEST I-IETSCT/ES OF TPiZ KATJl-lCii. ^T PrATE IX. v; BOSIOS f UBLIO LIEEAEY. P.OSTEEIOE \1EV/ OF THE MUSCLES OF THE HAUNCH, ^^Cbf:iciypfFr2n:vi^Cc.2lT^piyri-^iiBcs THE HORSE IN MOTION. 45 as of other muscles of the haunch, will be appreciated when we cometo the consideration of the fast paces. The external branch of the semi-tendinosus has by all anatomistsbeen claimed as the posterior part of the vastus, while it was admit-ted to be anatomically and functionally distinct. There is really norelation between them except in their juxtaposition and in their super-ficial appearance. Their connection is by a thin layer of cellulartissue, while the connection between the branch in question and thesemi-tendinosus is most intimate, the partition being an aponeurosisto which both are attached, as in penniform muscles, .from wdiich itis impossible to separate the muscular fibres without laceration. Ihave no doubt that the point

Note About Images