Reproductive System Part 1

Question 1

Describe the role of sex chromosomes and sex hormones in the development of sexual characteristics.

Answer 1

Chromosomes are the genetic based determinator of sex. XX-female XY-male
Hormones differentiates between the sexes.

Question 2

What are the male gonads called?

Answer 2

testes

Question 3

what are the female gonads called?

Answer 3

ovaries

Question 4

Aside from gametogenesis, what is the gonads’ function?

Answer 4

the secrete sex hormones

Question 5

What is the distinction between sex determination and sex differentiation? What are the deciding factors in each process?

Answer 5

Sex determination is based on chromosomes, whether or not you have srY chromosome.
Sex differentiation is based on hormones, whether or not you have testosterone and MIH or not.

Question 6

Describe the process of spermatogenesis.

Answer 6

the spermatogonium chromosomes are replicated, and the cell differentiates to become a primary spermatocyte. The primary spermatocyte goes through meiosis 1 and secondary spermatocytes undergo meiosis II to become spermatids . Spermatids differentiate to become specialized, or which possess the characteristics head, mid-piece, and tail. After spermatozoa are formed, they are released into the lumen of the seminiferous tubule. .

Question 7

Describe the hormonal regulation of spermatogenesis.

Answer 7

Testosterone and FSH work together to promote spermatogenesis.

Question 8

For each of the following, indicate whether it applies to Sertoli cells or Leydig cells:

1. are present in the seminiferous tubule
2. are present outside the seminiferous tubule
3. secrete testosterone
4. are target cells of FSH
5. are target cells of LH
6. secrete inhibin

Answer 8

Leydig- are present outside the seminiferous tubule, secrete testosterone, and are target cells of LH
Sertoli- are present in the seminiferous tubule, are target cells of FSH, secrete inhibin

Question 9

Arrange the following structures so that they correctly describe the path of sperm transport from the testes to the penis: 
ejaculatory duct
vans deferens
seminiferous tubule
urethra
epididymis
efferent ductule 
rete testis

Answer 9

seminiferous tubules
rete testis
efferent ductule
epididymis
vans deferens
ejaculatory duct
urethra

Question 10

Describe the role of the autonomic nervous system in the male sexual response.

Answer 10

Erection is under parasympathetic control

Emission and Ejaculation are under sympathetic control