The dissector's guide, or, Student's companion : illustrated by numerous woodcuts, clearly exhibiting and explaining the dissection of every part of the human body . whole posterior part of that bone, adhering to it in theirdescent, to be inserted into the upper and outer part of the olecranon ofthe ulna, and partly into the condyles of the os humeri, adhering closelyto the ligament. Action, — to extend the fore arm. , THE DISSECTORS GUIDE. 79 DISSECTION OF THE POSTERIOR PART OF THEFORE ARM. The integuments may be removed in the same manner ason the anterior part of the arm, when the fascia wi
The dissector's guide, or, Student's companion : illustrated by numerous woodcuts, clearly exhibiting and explaining the dissection of every part of the human body . whole posterior part of that bone, adhering to it in theirdescent, to be inserted into the upper and outer part of the olecranon ofthe ulna, and partly into the condyles of the os humeri, adhering closelyto the ligament. Action, — to extend the fore arm. , THE DISSECTORS GUIDE. 79 DISSECTION OF THE POSTERIOR PART OF THEFORE ARM. The integuments may be removed in the same manner ason the anterior part of the arm, when the fascia will beobserved to be similar, and a continuation of the same thatserves to bring down the muscles on the fore part. Thefascia on the back part of the arm, however, receives addi-tional strength by an expansion sent off from the fascia sinks between the muscles, forming a separationbetween them, which has received the name of inter-mus-cular ligament. The muscles take a firm origin from thefascia, and it can only be removed at the upper part withsome difficulty. When reflected, the following muscles,forming the first layer, are brought into a. The supinator radii longus. b. The extensor carpi radialis longior. c. The extensor carpi radialis brevior. d. The extensor digitorum communis, sending off the aunculans. e. The extensor carpi The anconeus. g. The annular ligament. a The supinator radii longus arises by an acute fleshy beginning,from the ridge of the os humeri, above the external condyle, nearly ashiBh as the middle of the bone ; it forms a thick fleshy belly, whichcovers the upper part of the extensor carpi radialis longior; and aboutthe middle of the fore arm sends a tendon along the edge of the radius,to be inserted into the outer side of the under end of the , — to roll the radius outwards, and to turn the hand into a supine• situation, or with the palm outwards. b. The extensor carpi radialis longior arises broad, thin,
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Keywords: ., bookcentury1800, booksubjectanatomyregional, booksubjectdissecti
