A | B |
Olive size and divided into lobules | Testes |
Lobules contain | Seminiferous tubules |
Seminiferous tubules | make sperm through spermatogenesis |
Between seminiferous tubules | Interstital cells |
Interstitial cells | Excrete testosterone |
Where do sperm go from leaving the seminiferous tubules? | Epididymus |
Epididymus is characterized by... | 20 ft long, sperm travels 1 foot a day, temporary storage |
Runs from the testes around the bladder | Vas Deferns |
If the vas deferns is cut... | vasectomy. Sperm is produced but not expelled. Testosterone levels do not change. |
Small tube that travels from the seminal vessicle to the bottom of the prostate? | Ejaculatory duct. |
How does sperm move through the male reproductive tubing? | Peristalsis |
A tube that is used by both urine and semen? | Urethra |
Why can't urine and semen be secreted at the same time? | Bladder sphincter constricts for ejaculation |
How is the urethra cleaned from reminant urine? | Bolbourethral glands |
What do the seminal vesicles produce? | 60% of semen |
What do the seminal vesicle do to sperm? | Sugar nourishes sperms mitochondria for tail movement, Vitamin C activates sperm |
Where is the prostate gland? | Inferior to the Bladder |
What does the prostate gland secrete? | Milky fluid that activates sperm. |
How is the prostate examined? | Rectal exam when man turns 40. |
Does the prostate gland stop growing? | No. |
When the prostate gland grows too large what problems may occure? | Strangle the urethra, cause bladder infections, and bladder stones |
What methods can cure or alliviate prostate problems? | Ballon method can push prostate back so urethra can allow urine to pass. Seed radiation and drugs to shrink. |
How many lobs are in the prostate? | 3 |
What gland is the first to secrete before intercourse? | Bulbourethral gland |
What is the pH of semen. | 7.2-7.6 |
What is the pH of the vagina? | 3.5 |
Why do you need semen? | Dilute sperm, feed it, and activate it. |
From the testicles what tubes do sperm travel through? | Seminiferous tubules, epidydimus, vas deference, ejaculatory duct, urethra |
How much is ejaculated? | 1 teaspoon, 5 ml |
How many sperm is needed to be fertile? | 150 thousand sperm or more |
How is infertility diagonsed? | Semen sample: morphology, motility, and sperm count |
What threatens sperm? | Antibiotics, Radiation, Pestisides, lead, pot, tobacco, and heat |
What hormone is necissary for spermatogenesis? | FSH |
How long does it take to make sperm? | 64-72 days |
What is the job of the scrotum? | Keep testicles the proper temperature for sperm production. Raises and lowers. |
What is the job of the Penis? | To have the erectile tissue engourge for erection inorder to ejaculate sperm. |
What do interstitial cells do? | Deepen voice, Increase hair growth, increase muscle and bone size. Activated by LH (leutinizing hormone) |
What does the acrosome do? | Has lysosome at the head of the sperm to break into the egg. |
Head of the sperm... | Contains DNA...blows up in egg to spread DNA |
Tail of the sperm... | Used for movement. |