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Test 7
pg one of notes
27
Anatomy
11th Grade
04/12/2016

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Term
only system not essential to the life of the individual
Definition
reproductive system
Term
sex cells
Definition
gamete
Term
reproductive organs that produce gametes and hormones
Definition
gonads
Term
external genitalia
Definition
perineal structures
Term
testes, secrete sex hormones called androgens (mainly testosterone) and produce the male gametes (spermatozoa) that develop into sperm
Definition
male gonads
Term
male gametes
Definition
spermatazoa
Term
mature sperm travel along duct system and are mixed with secretions of accessory glands
Definition
emission
Term
semen is expelled from body
Definition
ejaculation
Term
sperm cells and secretions from accessory organs
Definition
semen
Term
What are the female gonads?
Definition
ovaries
Term
What do the female gonads do?
Definition
generally release one immature gamete (oocyte) per month
Term
immature gamete
Definition
oocyte
Term
What two sex hormones do the ovaries produce?
Definition
estrogen and progesterone
Term
What is another term for the uterine tubes
Definition
Fallopian tubes
Term
coitus
Definition
sexual intercourse
Term
What does the zygote turn into?
Definition
an embryo
Term
What does the embryo develop into? (9 weeks until birth)
Definition
fetus
Term
About how much does each testicle weigh?
Definition
10-15g
Term
Where do the testes hang?
Definition
outside the male body in a fleshy pouch suspended posterior to the base of the penis in the scrotum
Term
Why do the testes hang outside the body?
Definition
allows for lower temperature
Term
bundle of connective tissue that extends from each testis to the peritoneum
Definition
gubernaculum testis
Term
During the seventh developmental month, circulating hormones (mainly testosterone) allow movement of the testes through abdominal musculature outside the body into the scrotum. What is this called?
Definition
descent of testes
Term
failure of one or both of testes to descend from the inguinal canal into the scrotum by birth
Definition
cryptorchidism
Term
What happens if both testes fail to descend?
Definition
the male will be sterile
Term
What does sterile mean?
Definition
infertile (will not be able to father children)
Term
If the testes cannot be pulled into the scrotum, they should generally be surgically removed by what type of procedure?
Definition
orchiectomy
Term
What percent of males with uncorrected cryptorchid testes eventually develop testicular cancer?
Definition
10%
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