what is the skin covered pouch in the groin that consists of two sacs, each containing a testis and an epididymis?
scrotum
100
During ____________, muscular contractions cause the sperm to travel through the urethra, in the penis, and out of the body
Ejactulation
100
The boundary between the 2 chambers of the testes is marked by a raised thickening called the dartos?
false, raphe
100
What is the primary sex organ in the male reproductive system?
a. Penis c. efferent ductiles
b. Gonads (testes) d. ejaculatory ducts
a. Penis
100
Approximately how many sperm cells are produced by each testicle daily by a mature male?
a. 200 c. 1
b. 5,000 d. 85 million
d. 85 million
200
What are both of the male reproductive glands?
testis
200
In each drop of _________there are approximately five million sperm cells.
Semen
200
The testes develop in the make after birth has taken place
false, before
200
Tiny male cell that unites with the female ovum to form a fertilized egg or zygote.
a. sperm c. scrotum
b. testes d. gamete
a. sperm
200
at what age does puberty usually start in boys?
a. 20 years c. 12 to 14 years
b. 16 to 18 years d. 10 to 11 years
c. 12 to 14 years
300
What is the Male gamete(sex cell)?
Sperm
300
The ______ of a sperm cell contains the nucleus or control center of the cell.
Head
300
The main function of the interstitial cells is to produce sex hormones
true
300
A set of coiled tubes that connect to the vas deferens?
a. fallopian tubes c. urethra
b. epididymis d. scrotum
b. epididymis
300
True or False?
An alternate name for the reproductive organ is gametes?
False, Gonads
400
What is the urethra?
The urethra is the tube that carries urine from the bladder to outside of the body. In males, it has the additional function of ejaculating semen.
400
There are ______ parts of each sperm cell
Three
400
The tightly coiled tubules known as “interstitial” tubules re the places where sperm cells are produced
false, seminiferous
400
The_______ are the site of the sperm maturation, and they store and convey spermatozoa to the dectus deferntia?
a. interstitial cells of the testes c. bulbourethral glands
b. ejaculatory ducts d. epedidymides
d. epedidymides
400
MitochondriaThe midpiece of the sperm tail contains mostly__________________.
Mitochondria
500
what is the epididymis?
Coiled tube that is behind each testicle where mature sperm is stored.
500
________occurs in the testes producing sperm with 23 chromosomes.
Meiosis
500
Spermatogenesis is the process by which sperm cells are produced in the male.
true
500
Which of these is not an action of the male androgens?
a. deposition of subcutaneous fat on the hips and thighs
c. secondary sperm
b. growth of bone and muscles
d. development of male genitalia
b. growth of bone and muscles
500
Which gland is responsible for most of the semen released in an ejaculation?
a. seminal vesicles c. glans penis
b. prostate gland d. bulbourethral gland