Anatomy Exam Crash Course Anatomy Exam Crash Course During fetal development, what happens to the testes? What is this called? -Answer Each testis develops near the kidney, descends through an i... nguinal canal and enters the scrotum at about eighth gestational month; called descent of testes What is it called if the testes do not descend? -Answer cryptorchidism ? -Answer Testis is too close to body and temperature is too high for adequate sperm production so the person is infertile; surgery is required to pull the testes down Why does puberty cause an increase in sperm production? -Answer High levels of testosterone is produced What is contained in the head of the sperm? -Answer Nucleus and chromatin What does the acrosome (cap on the head of the sperm) contain? -Answer Enzymes and hyalaronidase aids the sperm cell with penetrating the cell layers surrounding the oocytes What does the midpiece of the sperm contain? -Answer mitochondria for energy What does the tail of the sperm do? What is it made of? -Answer propels sperm; microtubules What does the prostate gland do? -Answer secretes milky alkaline fluid to combat acidic urethra and vagina and to enhance sperm motility What does the bulbourethral gland do? -Answer Secretes a clear mucus before ejaculation that neutralizes acidic urine remaining in the urethra Why can't a sperm fertilize an egg until it reaches the female reproductive tract? What is this called? -Answer Traveling through the female reproductive tract weakens the acrosome, which allows it to release its hyaluronidase; called capacitation How is in vitro fertilization accomplished if capacitation prevents it from fertilizing the egg outside of the context of the female reproductive tract? -Answer Chemicals have to be applied to weaken the acrosome, as if it were traveling through the female reproductive tract What happens if you give a patient who is on Viagra (which prevents breakdown of NO) nitric oxide as a way to treat high blood pressure? -Answer You will crash their cardiovascular system because the BP will go way too low What does GnRH cause release of? -Answer FSH and LH (ICSH) [Show More]
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