AVS 101 Lecture Notes - Lecture 10: Epididymis, Seminal Vesicle, Sex Organ

• School: URI
• Department: Animal and Veterinary Science
• Course: AVS 101
• Professor: Anthony Mallilo

Document Summary

Avs 101 - lecture 10 - reproduction part 1. 1:1 - mating:birth ideal but not how it usually happens. Cull - permanently remove from the herd/flock. Happens if animal is sick or is unable to breed properly. Chromosomes in a cell nucleus are separated into two identical sets. Each parent contributes half of their chromosomes determines whether offspring is male or female. Scrotum - controls the temperature of the testes. Temperature change can affect how a male produces sperm cells. External cremaster muscle raises and lowers the scrotum. Keeps scrotum closer to body to keep testes warmer. Pushes scrotum aways from the body to keep testes cool. Castration eliminates function of scrotum and testes. Monorchid/cryptorchid one or both testes fail to descend into scrotum. Epididymis - where sperm cells mature and are stored. Spermatic cord contains blood vessels, vas deferens, and ec muscle. Energy source for sperm cells nutrients and electrolytes. Sperm cells would die on contact without the semen.