NURS 106 Lecture Notes - Lecture 36: Reproductive System, Spermatocyte, Mediastinum
3 Dec 2018
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Document Summary
White capsule of the internal layer. Testicular artery, pampiniform plexus of veins, autonomic nerves, seminiferous tubules straight tubules (mediastinum) rete testis (mediastinum) efferent ductules. Epididymis (head, body, tail) vas deferens lymphatic vessels, ductus/vas deferens and cremaster muscle. A single tube with head, body and tail. Penetrates the inguinal canal and enters the pelvic cavity. Blood testis barrier, producing inhibin and androgen binding proteins. *sertoli/nurse cells - special title for epithelial cells in the sminfernifosi tubules. Dense lysosome tip that contains enzymes for. Contains mitochondria, creating atp for locomotion. Testes in embryo - located in the posterior abdominal wall. 7 months of fetal life - testes will descend into the scrotum (through inguinal canal) Undescended testis - occurs in 30% of infants, untreated cases leads to higher chances of testicular cancer and infertility (due to higher temperature in the pelvic cavity) Multiple efferent ducts become a single ductus epididymis in head region. Site of sperm maturation, storage for 1-2 months.
