ANSC 1011 Lecture Notes - Lecture 7: Sigmoid Colon, Vas Deferens, Spermatic Cord
Document Summary
Bubba is a hereford bull (white and brown, always have a white face) Primary sexual organ of the bull is testes: this is because it makes spermatozoa, also very important for testosterone (primary male steroid) Germ cells are the starting point for the birth of sperm: certoli cell (aka nurse cell) nuclei divide and have most germ cells imbedded in its cytoplasm. Lytic cells: cells that make testosterone, in interstitium. Parenchyma has to be a few degrees lower than body temperature, which is why testes are in scrotum that falls below body: testes have to be cooler in order to make sperm. nerves. Spermatic chord (pampiniform plexus): vascular, lymphatic, and: has muscles to pull them close when colder and relax when, counter current exchange, 39-34c warmer. Tubule gets larger as you go from top to bottom. Goes form epididymis to vas deferens; only way sperm can get out.
