Reproductive System (CH 26)

Mitosis produces cells that are

diploid

If the dartos and cremaster muscles of the scrotum contract

the scrotum will be pulled close to the abdominopelvic cavity, increasing the temperature of the scrotum.

isthmus

uterine tube connects to the uterus in a constricted region

seminal vesicle

male organ that produces seminal fluid for sperm cells

NOT a component of semen?

(ABP) Androgen binding protein

Temperature of scrotum is

3 degrees less than the body temp.

androgen-binding protein (ABP)

Binds to testosterone (surrounds) to make water soluble. Increases concentration within seminiferous tubules.

What process shuffles the alleles and causes homologous chromosomes to no longer be identical during meiosis

Crossing Over

A married couple is trying to conceive a child. The man works outside during the hot summer months and is also taking medications that cause involuntary muscle contractions. What affect will this have on his sperm production?

He will experience a decreasing number of sperm cells produced due to the scrotum being close to body temperature if not higher.

How would a patient's semen be affected if he has a blockage in his seminal vesicle?

He would have a reduction in the volume of his semen.

A tumor in the isthmus of the uterine tube is small enough to allow sperm to enter but too large to allow an oocyte to pass. What will happen if the sperm enters this tube following ovulation?

The oocyte may be fertilized but will not be able to pass into the uterus to develop.

prostate

a gland surrounding the neck of the bladder in male mammals and releasing prostatic fluid.

Citrate

a salt or ester of citric acid

duct travels through the prostate

ejaculatory duct

Complete this analogy: Testes are to gonads as sperm are to

gametes

The primary sex organs are also called

gonads

meiosis produces cells that are

haploid

bulbourethral gland

secretes lubricating mucus, cleanses urethra

Which male accessory sex gland produces a yellowish secretion containing fructose, prostaglandins, coagulating proteins and enzymes?

seminal vesicle

Which gland produces the majority of the fluid in semen?

seminal vesicles 60-70% semen volume and contains fructose, prostaglandins, and coagulation proteins.

Where does sperm production occur within the testis?

seminiferous tubules

Two identical copies of the same chromosome are called

sister chromatids

The seminal vesicles produce seminal fluid, a yellowish secretion that makes up approximately 60-70% of semen volume. If the seminal vesicles were blocked,

the amount of semen produced would be reduced.

ejaculatory duct

tube through which semen enters the male urethra