BIOL 207 Ch. 27 Test Questions
And Answers Latest Update
The genetic determinate for male reproductive development is ________. ANS✔✔ the SRY gene
The first sign of puberty in females is budding breasts. ANS✔✔ True
Sperm from the male parent determines the gender of the child. ANS✔✔ True
The most important risk for testicular cancer in young males is ________. ANS✔✔ failure of the
testis to make their normal decent
The dartos and cremaster muscles are important to the integrity of the male reproductive system.
Which of the following is true about the role they play? ANS✔✔ They regulate the temperature of
the testes.
How do the testes respond to exposure to excessive body warmth? ANS✔✔ They move away from
the pelvic cavity.
The cells that produce testosterone in the testis are called ________. ANS✔✔ interstitial endocrine
cells
Which of the following occurs as a result of undescended testes? ANS✔✔ Inadequate or nonviable
sperm will be produced
It is necessary for the testes to be kept below body temperature for abundant, viable sperm
formation. ANS✔✔ True
The primary function of the testes is to produce testosterone. ANS✔✔ False
, 2024/2025
The testes are innervated by the sympathetic division of the ANS only. ANS✔✔ False
A scrotal muscle that contracts in response to cold environmental temperature is the cremaster.
ANS✔✔ True
Sperm are ejaculated from the corpora cavernosa of the penis. ANS✔✔ False
When it is cold, the scrotum is pulled away from the body. ANS✔✔ False
The testis is divided into seminiferous tubules which contain the lobules that produce sperm and the
ejaculatory duct that allows the sperm to be ejected from the body. ANS✔✔ False
The ability of sperm cells to move along the ductus deferens is due to ________. ANS✔✔
peristaltic contractions
The duct system of the male reproductive system does not include the ________. ANS✔✔ corpus
spongiosum
Which of the following glands are responsible for about 70% of the volume of semen? ANS✔✔ the
seminal glands
Prostate cancer is _______. ANS✔✔ sometimes a slow-growing cancer that may never represent a
threat to the patient
The prostate atrophies as a man ages, and it usually causes no health problems. ANS✔✔ False
The secretions of the bulbo-urethral glands neutralize traces of acidic urine in the urethra and serve
as a lubricant during sexual intercourse. ANS✔✔ True
Erection of the penis results from ________. ANS✔✔ a parasympathetic reflex
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