Reproductive System

Question 1

Cremaster muscle

Answer 1

Draws testes closer into the body to keep em warm

Question 2

Dartos muscle

Answer 2

contracts to wrinkle scrotum skin to reduce SA for heat to escape. So it keeps em warm

Question 3

I am the cell that is responsible for spermatogenesis

Answer 3

Sertoli cells

Question 4

I am responsible for the secretion of androgens in males. I am not the adrenal gland.

Answer 4

Leydig cells

Question 5

Structure for storage and maturation of sperm

Answer 5

Epididymus

Question 6

Where do sperm travel once exiting the epididymus?

Answer 6

Vas deferens

Question 7

Bulbourethral gland

Answer 7

Also called cowpers gland- secreted lubricant into urethra and neutralizes remaining acidic urine

Question 8

Place into the correct order: 
Seminiferous tubules
Penis
Epididymis
Vas Deferens
Urethra
Ejaculatory duct

Answer 8

Seminiferous tubules
Epididymis
Vas Deferens
Ejaculatory duct
Urethra
Penis

Question 9

Place in the correct order
Spermatogonial stem cells
Spermatozoa
Spermatogonia 
Secondary spermatocytes
Primary spermatocytes
Spermatids

Answer 9

Spermatogonial stem cells

Spermatogonia

Primary spermatocytes

Secondary spermatocytes

Spermatids

Spermatozoa

Question 10

Seminal Vesicles

Answer 10

The seminal vesicles provide nutrients in the form of fructose and vitamins as well as supplementary enzymes and proteins necessary for spermatozoa to survive their journey through male and female reproductive tracts.

Question 11

True or False: Oogenesis is arrested at prophase I until puberty

Answer 11

TRUE. Oogenesis begins in fetal development. The cells start to undergo meiosis but are arrested at prophose I until puberty.
The primary oocyte is arrested in prophase I until puberty. After the commencement of puberty, a small number of primary oocytes resume oogenesis and develop into secondary oocytes. These secondary oocytes in turn freeze their development at metaphase II. At ovulation, a secondary oocyte is released. If fertilization occurs, then meiosis II is completed.

Question 12

Place in the correct order: 
Primordial germ cells
Fertilized ovum
Oogonia
Secondary oocyte
Primary oocyte
Arrest in metaphase II

Answer 12

Primordial germ cells

Oogonia

Primary oocyte

Secondary oocyte

Arrest in metaphase II

Fertilized ovum

Question 13

True or false: Secondary spermatocytes are diploid because they still have TWO copies of identical chromosomes.

Answer 13

This statement is false. Secondary spermatocytes have undergone meiosis I, in which homologous chromosomes separate. Each secondary spermatocyte is therefore haploid and contains identical copies of each chromosome (sister chromatids).

Question 14

Which hormone acts on sertoli cells?

Answer 14

FSH

Question 15

Which hormone acts on leydig cells to produced testosterone?

Answer 15

LH

Question 16

Which hormone promotes spermatogenesis?

Answer 16

FSH

Question 17

Which hormone promotes testosterone production?

Answer 17

LH

Question 18

True or False: The corpus luteum produces progesterone to help maintain the lining of the uterus for implantation

Answer 18

True

Question 19

How does the body know not to proceed with another menstral cycle when implantation has occured?

Answer 19

Embryo secretes HcG human chorionic gonadotropin whihc helps maintain the corpus luteum.

Question 20

True or false: A female of reproductive age likely forms at least one corpus albicans per month.

Answer 20

The corpus albicans is the degenerate scar tissue from a corpus luteum. The corpus luteum is comprised of the cells of a ruptured ovarian follicle. In a female of reproductive age, on average, one follicle ruptures during every menstrual cycle. After this ruptured follicle forms the corpus luteum, if fertilization does not occur, the corpus luteum becomes the corpus albicans.

Question 21

How does estrogen impact it own secretion?

Answer 21

It can exert positive and negative feedback on the release of GnRH from hypothalamus. At high concentrations, estrogen actually stimulates the release of GnRH and, consequently, more estrogen. Estrogen exerts a positive feedback during this time. This is the precursor to the LH and FSH surge during ovulation.

Question 22

What hormone has a negative feedback on LH?

Answer 22

Progesterone has a negative feedback effect on the secretion of luteinizing hormone (LH) by the anterior pituitary and is secreted by the corpus luteum.