Human physiology (Volume 2) . nces, posteriorly,at the bulb of the urethra, — alreadydescribed under the Secretion of Urine,— and terminates anteriorly in theglans, which is, in no wise, a depend-ency of the corpora cavernosa, but isseparated from them by a portion oftheir outer membranes; so that erectionmay take place in the one, and not a For a farther description of these vessels, see J. Miiller, art. Erectiles Gewebe,Encycl. Wbrterbuch der Medic. Wissench. xi. 452, Berlin, 1834; Handbuch derPhysiologie, u. s. w., Balys translation, Lond. 1838; and Abhandlungen der Kbnig-lich. Akademie der
Human physiology (Volume 2) . nces, posteriorly,at the bulb of the urethra, — alreadydescribed under the Secretion of Urine,— and terminates anteriorly in theglans, which is, in no wise, a depend-ency of the corpora cavernosa, but isseparated from them by a portion oftheir outer membranes; so that erectionmay take place in the one, and not a For a farther description of these vessels, see J. Miiller, art. Erectiles Gewebe,Encycl. Wbrterbuch der Medic. Wissench. xi. 452, Berlin, 1834; Handbuch derPhysiologie, u. s. w., Balys translation, Lond. 1838; and Abhandlungen der Kbnig-lich. Akademie der Wissenschaft. zu Berlin, s. 93, Berlin, 1837; also, Dr. Hart, inart. Erectile Tissue, in Cyclop. Anat. and Physiol, part x., p. 146, June, 1837. b Mandl, Manuel dAnatomie generate, p. 197, Paris, 1843. c Mullers Archiv. fur Anatomie, u. s. w., and Lond. Med. Gazette, June 23, 1838,p. 543; and Henle, Allgemein. Anatom. s. 485, Leipz. 1841. <• Lond. Med. Gazette, April 23d, 1836, and Abhandlung, u. s. w., s. 117. B—. Section of the External membrane or sheath ofthe penis. B. Corpus Corpus spongiosum urethrae. SPERM. 325 simultaneously in the other; and injections into the corpora ca-vernosa of the one do not pass into those of the other. The glansappears to be the final expansion of the erectile tissue which sur-rounds the urethra. The posterior circular margin of the glans iscalled the corona glandis, and behind this is a depression termedthe cervix, collum or neck. Several follicles exist here, called theglandulx odoriferx Tysoni, which secrete an unctuous humourcalled the smegma prxputii, which often accumulates largely,where cleanliness is not attended to. The penis is covered by the skin, which forms, towards theglans, the prepuce ox foreskin. The cellular tissue, which unitesit to the organ is lax, and never contains fat. The inner lamina ofthe prepuce being inserted circularly into the penis, some distanceback from the point, the glans ca
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