Anatomy and Cell Biology 3319 Lecture Notes - Lecture 8: Efferent Ducts, Seminiferous Tubule, Vas Deferens
12 Apr 2016
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Suggested reading: pawlina 7th ed. p. 808 819 (6th ed. p. 802 815) Learning objectives: list the structures through which spermatozoa pass as they travel from the seminiferous tubules to the external environment. Identify each passageway in a light micrograph and describe its structure and function: list the components of seamen and where each is produced, describe the histological organization of the seminal vesicle and prostate. Spermatozoa are unable to swim when they leave the seminiferous tubules and are carried by a current in the fluid produced by sertoli cells. The area between the convoluted portion of seminiferous tubule and straight tubule contains only sertoli cells and no spermatogenic cells. Straight tubules (tubuli recti: simple columnar epithelium. Rete testes: combine sperm from different straight tubules, network of thin channels in the mediastinum testes, simple cuboidal epithelium. Convey spermatozoa from the rete testes to the epididymis.
