PVS 2100 Lecture 9: Repro Physiology
14 Feb 2017
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Document Summary
Vasectomy: testicular artery removed erroneously (incorrect, error) Review semen: average ejaculate volumes + sperm concentration, volume=accessory sex glands. Review hypothalamic hormones: ghrh >anterior pituitary gland releases growth hormone, gnrh >anterior pituitary gland releases gnts >ovary/testis, gonadotropins acted on ovaries and testis, crh >anterior pituitary gland releases acth >adrenal cortex, trh >anterior pituitary gland releases tsh >thyroid gland, prh >anterior pituitary gland releases prolactin. Fsh and lh: convert testosterone to estrogen and dihydrotestosterone. Review interstitium: (connective tissue between seminiferous tubules, leydig cells produce testosterone, lh receptors, exogenous testosterone/anabolic steroids, possible long term effects of anabolic steroids, shut down production of releasing hormone, inhibit fsh and lh, testis goes into atrophy shrinks, spermatogenesis reduced. Tertiary follicle (aka mature or graa an follicle: ovum, small compared to overall size of follicle, zona pellucida, surrounds ovum, granulosa cells, surrounds ovum and zone pellucida, antrum, uid- lled cavity, theca interna, theca externa.
