KINESIOL 1YY3 Lecture Notes - Lecture 30: Sister Chromatids, Ejaculation, Inguinal Canal

• School: McMaster University
• Department: Kinesiology
• Course: KINESIOL 1YY3
• Professor: Krista Howarth

Document Summary

Make sure there is optimal environment for fetus to grow. Progesterone, estrogen made by the ovaries. Ductus (vas) deferens which leaves from the epididymis and enters the pelvic cavity by the inguinal canal and travels up behind the bladder. Contents join with the content of the vas deferens. Has a divisible marking that separates it into two lateral sides called the raphe (outside) Separated into two pouches by scrotal septum (inside) Each testis is located in one pouch. For sperm to survive, they need to exist at three degrees less than normal body temperature. Sperm needs to be kept at around 34 degrees. Sperm production occurs outside the body in the scrotum. Dartos muscle contracts makes scrotum smaller when. Cremaster muscle contracts pulls testes closer to body cold when it is cold. When it is hot the opposite happens relaxes the muscle.