Male Reproductive System Flashcards
What happens during adolescence
Puberty
What happens during puberty
Burst of hormones activate maturation of the gonads (testes)
When does puberty usually take place
9-14 yrs
What is abnormally early puberty called
Precocious puberty
What is abnormally late puberty called
Eunuchoisdism
What are the physical changes during puberty
Enlargement of the external and internal genitalia.
Voice changes
Hair grows
Mental changes
Changes in body conformation
Sebaceous gland secretions thickens/increase, acne
Each teste is a (what) structure and what are the dimensions
Oval structure
5cm in length and 3cm in diameter
Where are the testes located
Scrotum sac
Each testes contain 1-4 (what)
Seminiferous tubules
(What) is a long tube, about 6 meters
Epididymis
The epididymis contains
Mature sperm
Sperm that leave the testes are (what)
Immature
Where do they complete maturation process
Epididymis
Sperm cells pass through a series of (what) to get to the outside of the body
Ducts
After they leave the sperm passes through
Epididymis, vas deferens, ejaculatory duct, and urethra
Each vas deferens, joins the duct from the adjacent (what) to form a short ejaculatory duct that enter the (what)
Urethra
Each ejaculatory duct passes through the (what) and empties into (what)
Prostate gland
Urethra
What is semen
a slightly alkaline mixture of sperm cells and
secretions from the accessory glands, seminal
vesicles and prostrate gland.
The volume of semen in a single ejaculation may vary from
1.5ml to 6ml
There are between (how many) sperms per milliliter of semen
50 to 150 million
Sperm counts below (how many) per milliliter usually present fertility problems
10 to 20 million
(What) extends from the urinary bladder to the tip
of the penis
Urethra
(What) involves increase in length, width & firmness
Erection
The spongy erectile tissue fills with (what)
Blood
