File:The American journal of anatomy (1901) (14780869951).jpg

Identifier: americanjournalo06wist (find matches)
Title: The American journal of anatomy
Year: 1901 (1900s)
Authors: Wistar Institute of Anatomy and Biology Association of American Anatomists
Subjects: Anatomy Anatomy
Publisher: Baltimore, MD : (s.n.)
Contributing Library: MBLWHOI Library
Digitizing Sponsor: MBLWHOI Library

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ded by the growth of branches fromthe margins of the limb over the medial and lateral surfaces. The great variation in the distribution of the nerves supplied todifferent areas can be best accounted for, I think, by assuming that thenerves grow as plants grow: in part they are guided in their course bydefinite paths, as climbing plants may be guided by strings, butwhere definite paths are not offered great variation in the distributionof the cutaneous rami may be seen. Extensive development of one nervetends to retard its neighbors, lack of development tends to excite themto more active growth. -■llio hypogastric Lin^^^F—V Inguinal aenital■LumboinguinQl 3 (1^^^^^^^^M_^i^^>^ ^^ - Obturaror 4 ^^ ^ ^ -Medial plantar ^^^^^^^^^^^^^^^^_^^^^^ _ -Latera.) plantar -Sural 2 /^^^^^^^r^ - ----Posterior cutaneous Perineal branch -Dorsa.1 N.of penis - -Perinea.1 Hcemorrhoiclal FiQ. 2. llio hypogastric-InguinalGenitalLumboinguinal -Lateral cutaneousQnterior cutaneousMedial culaneousSaphenus
Text Appearing After Image:
Deep peroneal•Superficial peroneal •Lateral sural •Posterior cutaneousPerineal branch Fig. 3. Fig. 2. Diagram of the early course of growth of the cutaneousnerves arising from the ventral side of the lumbo-sacral plexus. Fig. 3. Diagram of the early course of gro^wth of the cutaneousnerves arising from the dorsal side of the lumbo-sacral plexus. 300 The Nerves and Muscles of the Leg C. DEVELOPMENT OF THE MUSCULATUEE AND DEVELOP-MENT AND VAEIATION IN DISTRIBUTION OF THENEEVES TO THE MUSCLES OP THE INFEEIOE EX-TEEMITY. I. FEMORAL GROUP. a. Embryonic Development.1. General Features. Soon after the femoral nerve begins to extend into the base of thelimb differentiation of the femoral musculature commences. At aboutthe center of the shaft of the femur a mass of tissue may be distin-guished as the anlage of the quadriceps muscle (Plate III, Fig. 2).Into a cleft in this tissue the main trunk of the femoral nerve extendsand gives off branches for each of the main divisions of the quadri

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