Male reproductive physiology Flashcards
Nature and function of the secretion of the bulbourethral glands
Watery, Before ejactulation to lubricate clean the urethra
Nature and function of secretion from the prostate
Alkaline fluid, buffer vaginal acid
Nature and function of the secretion from the seminal vesicles
Citrate and fructose (energy), Prostaglandins (Suppress female immunity), Alkaline fluid (buffer vaginal acid)
Describe the processes to generate an erection
Tactile or psychological stimulation causes PNS input causing the release of NO from endothelium causing vasodilation
Describe the process of emission
Semen moved to urethra by contraction of the vas deferens, controlled by SNS from T11-L2
Describe the process of ejaculation
Internal sphincter closes, glands and muscles contract, Under control of SNS via the pudendal nerve (L1-L2)
Describe changes in the sperm once it enters the vagina
Coagulates then liquefies due to enzymes from the prostate, Under go capacitation where they lose glycoprotein coat so can fuse with the oocyte