File:Outlines of comparative physiology touching the structure and development of the races of animals, living and extinct - for the use of schools and colleges (1870) (14782671125).jpg

Identifier: outlinesofcompar00agas (find matches)
Title: Outlines of comparative physiology touching the structure and development of the races of animals, living and extinct : for the use of schools and colleges
Year: 1870 (1870s)
Authors: Agassiz, Louis, 1807-1873 Gould, Augustus A. (Augustus Addison), 1805-1866 Wright, Thomas, 1809-1884
Subjects: Physiology, Comparative Zoology
Publisher: London : Bell & Daldy
Contributing Library: MBLWHOI Library
Digitizing Sponsor: MBLWHOI Library

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the front ofthe thigh and leg; the sacral plexus, /, gives origin to theprincipal nerves of the lower extremities. The great sciaticnerve—the largest nerve in the body—proceeds down the backof the thigh, and at the ham divides into the tibial nerve, ?n,the external peroneal, or fibular nerve, n, and the externalsaphenous nerve, o. (§ 85. THE BEAUST is a compound organ, enclosed in theskull, and surrounded by three membranes: these are, the dura-mater, the external or fibrous, the pia-mater, the middle, orvascular; and the arachnoid, the internal or serous. These mem-branes are prolonged into the canal of the spinal column forlodging the cord, and invest in like manner this central portionof the nervous system. Figure 20 will serve to give thestudent a general idea of the different parts which composethe brain. It represents a vertical section of the cerebrum, a ;the cerebellum, d; the medulla oblongata, e; and shews the * Professor Wagneis Elements of Physiology, p. 464, et seg.
Text Appearing After Image:
ig. i9._The Nervous System of Man. 40 NERVOUS SYSTEM AND GENERAL SENSATION. primary course of the cerebral nerves, and their points of unionwith the brain and medulla obkmgata. /

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