POUL 1010 Lecture Notes - Lecture 7: Bulbourethral Gland, Seminal Vesicle, Female Sperm Storage
26 Mar 2018
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Document Summary
Functions of the ovary: gamete multiplication (in embryo, gamete maturation, hormone production, nutrient storage, hormone storage, ovulation, control of oviposition. Hormones produced in other parts of the body. Isthmus: secretion of inner and outer shell membranes. Utero-vaginal junction: location of sperm host glands for sperm storage. Vagina: passage way to cloaca and site of sperm selection. Made possible by sperm: host glands located in utero-vaginal junction. Synchronization between ovulation and oviposition- ovulation of the next follicle occurs approximately 20 minutes after oviposition. Sperm released from the u. v. j would have 20-30 minutes to traverse an empty oviduct and fertilize the next ovum to be ovulated. Internally located (rather than external as in most mammals) In many species there is massive seasonal growth of testes followed by regression in size. Function at the internal body temperature of the species. Very short extra-testicular duct system (in comparison to mammals) Very rapid transit of spermatozoa through duct system (in comparison to mammals)
