human reproductive system

Question 1

function of female r structures

Answer 1

● Ovaries = produce egg cells in follicles
● Fallopian tubes = transports an egg cell from ovary to uterus
● Uterus = where embryo develops
● Cervix = separates uterus from vagina, protects fetus
● Vagina= leads from the cervix to outside of the bod

Question 2

list structures of female reproductive system

Answer 2

ovary
fallopian tube
cervix
endometrium
uterus
vagina

Question 3

Identify the structures of the male reproductive
system

Answer 3

A = Testis
B = Scrotum
C = Penis
D = Urethra
E = Epididymis
F = Prostate gland
G = Seminal vesicle
H = Vas deferens

Question 4

function of testes

Answer 4

production of sperm cells + testosterone

Question 5

function of urethra

Answer 5

allows secretion of urine and semen from the body

Question 6

function of seminal vesicle

Answer 6

secretes fluid contains fructose and proteins to nourish sperm

Question 7

function of penis

Answer 7

penetrates vagina and releases sperm

Question 8

function of scrotum

Answer 8

holds and maintains an optimum temp for testes

Question 9

function of epididymis

Answer 9

stores sperm

Question 10

function of vas deferens

Answer 10

carry sperm from testes to urethra

Question 11

How does the human body produce
gametes?

Answer 11

Via gametogenesis

Question 12

Name the two types of gametogenesis

Answer 12

● Spermatogenesis
● Oogenesis

Question 13

What is spermatogenesis?

Answer 13

Gametogenesis in males that results in the production of spermatozoa.

Question 14

Where does spermatogenesis take place?

Answer 14

seminiferous tubules

Question 15

Outline the stages of spermatogenesis.

Answer 15

Outline the stages of spermatogenesis.
Primordial germ cells → spermatogonia → primary
spermatocytes → secondary spermatocytes →spermatids → four spermatozoa

Question 16

What is the germinal epithelium?

Answer 16

A surface layer of cells surrounding the
ovaries in females and testicles in males
that is involved in gametogenesis

Question 17

How do primary spermatocytes form?

Answer 17

● Primordial germ cells divide by mitosis,
forming spermatogonia
● Growth period of spermatogonia without further division forms primary spermatocytes

Question 18

How are spermatids formed?

Answer 18

● Primary spermatocytes divide in meiosis I
to form haploid secondary spermatocytes
● Secondary spermatocytes divide in meiosis II
to form four haploid spermatids

Question 19

How do spermatozoa form?

Answer 19

Spermatids differentiate to gain flagellum,
acrosome and many mitochondria.

Question 20

Name the three types of cells within
testes

Answer 20

● Spermatogonia
● Sertoli cells
● Interstitial cells (cells of Leydig)

Question 21

What are Leydig cells?

Answer 21

● Cells located adjacent to the seminiferous
tubules in the testes that secrete testosterone
● Also called interstitial cells of Leydig

Question 22

What are sertoli cells?

Answer 22

Cells located within the seminiferous tubules
in the testes that provide nourishment and
protection to cells produced during
spermatogenesis