Text-Book of Normal Histology

Text-Book of Normal Histology

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This historic book may have numerous typos and missing text. Purchasers can usually download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1893 edition. Excerpt: ...by the conical glans, all of which are held together by connective tissue and enveloped by the skin and subcutaneous tissue. The two cavernous bodies are enclosed within a stout fibrous envelope, the tunica albuginea, which reaches a thickness of about 217 i mm., and is composed of closely interwoven longitudinal bundles of white fibrous tissue, intermingled with well-developed elastic fibres. Within this common investment each body is Fig. 261. surrounded by an individual sheath of circularly-disposed bundles, which, in the mid-line, takes part in forming the pectinate septum; in other places the sheaths contribute the trabeculae belonging to the enclosed erectile tissue. The trabeculae spring from all parts of the investing fibrous tunics, including the septum, and pass inward, joining with their fellows on all sides to form a framework, the basis of the cavernous tissue, which occupies the entire cavernous body. While the trabeculae are stouter and larger near the periphery than in the centre, the included spaces, on the contrary, are larger near the middle and smaller at the circumference of the cavernous bodies; towards the anterior end of the penis the spaces become generally larger. In addition to the white fibrous tissue composing their principal part, the trabeculae contain elastic fibres and unstriped muscles, together with the blood-vessels which the larger bands support. The interspaces of this spongy structure are cavernous venous channels, which form an intercommunicating system of canals throughout the cavernous body. These spaces, lined with endothelium, and communicating on the one hand with the arteries and on the other with Section of penis of child near end: a, corpora cavernosa; b, fibrous envelope of same; c, ..show more

Product details

  • Paperback | 156 pages
  • 189 x 246 x 8mm | 290g
  • Rarebooksclub.com
  • United States
  • English
  • black & white illustrations
  • 1236857364
  • 9781236857361