Exam 5 - Anatomy & Physiology - The Male Reproductive System Primary Sex Organs
each lobule of the testes contains
1-4 seminiferous tubules
There is no reduction in the number of chromosomes, all stem cells have _____ chromosomes (23 pairs)
46
The total length of each seminiferous tubule (sperm factories) is ____ meters
500
the process of making sperm takes _____ days
64-72
At puberty spermatogenesis occurs, spermatogonia continue to divide by mitosis but now produce 2 daughter cells. _____ remains a stem cell (spermatognium)
Type A-
At puberty spermatogenesis occurs, spermatogonia continue to divide by mitosis but now produce 2 daughter cells. _____ moves towards lumen and becomes a primary spermatocyte
Type B-
Tublues from the lobules converge to form a _____
straight tubule
The Primary sex organ in males are _____
testes
The _____ produce gametes (sperm)
testes
An example of a adrogen is:
testosterone
Androgens is involved in:
the development & function of the reproductive organs and the influence of sexual behavior & sex drive
The _____ is the terminal portion of the male duct system
urethra
The _____ transports both urine and semen
urethra
The testes is divided into 250-300 ______
wedge shaped tubules
Adrogens are:
male sex hormones
The testes produce _____
gametes
sex cells are also called
gametes
Primary sex organs are known as:
gonads
________ produce androgens, most important is testerone
Interstital cells / Leydig cells
Interstital cells / Leydig cells ______ produce
adrogens
The development and function of the reproductive organs is controlled by sex hormones ______. ______ also influence sexual behavior and sex drive.
androgens
the accessory reproductive organs are:
ducts, glands, and external genitalia
The _____ is 18" long from the epididymis to the ampulla.
ductus deferens
The _____ passes thru the prostate gland and joins the urethra
ductus deferens
The _____ propels sperm from storage site into the urethra
ductus deferens
The ______ joins the seminal vesicle to form short ejaculatory duct
ductus deferens
The _____ contains a coiled duct, sperm are stored and mature here it takes 20 days
epididymis
The overall goal of reproductive organs is to produce _____
offspring
The primary sex organ in females are _____
ovaries
At puberty spermatogenesis occurs, spermatogonia continue to divide by mitosis but now produce 2 daughter cells. Type A- remains a stem cell (spermatognium) Type B- moves towards lumen and becomes a primary spermatocyte ______ now divide by meiosis, which divides chromosome number in half.
primary spermatocytes
Spermatogenesis is:
production of sperm
Stem cells known as spermatogonia in the seminiferous tubules, divide by mitosis until _____
puberty
The development and function of the ______ is controlled by sex hormones androgens. Androgens also influence sexual behavior and sex drive.
reproductive organs
The straight tubules sends sperm into the _______ then onto the efferent ductules and duct of the epididymis
rete testis
Interstital cells / Leydig cells surround the _____
seminiferous tubules
Stem cells known as spermatogonia in the _____
seminiferous tubules
The _____ are the sites where sperm are made
seminiferous tubules
Primary sex organs produce ______ also known as gametes.
sex cells
Primary sex organs secrete _____
sex hormones
The epididymis contains a coiled duct where _____ are stored and matured
sperm
seminiferous tubules are also called _______
sperm factories
At puberty _____ occurs, spermatogonia continue to divide by mitosis but now produce 2 daughter cells
spermatogenesis
______ is the process of making sperm, which takes 64-72 days
spermatogenesis
Stem cells known as ______ in the seminiferous tubules, divide by mitosis until puberty
spermatogonia