Male reproductive system

Question 1

Importance of reproduction

Answer 1

Sexual reproduction is the fusion of male and female sex hormones

Question 2

Gonads(testes and ovaries)

Answer 2

Are the organs that produce reproductive cells: sperm in males and eggs in females

Question 3

Sexual Reproduction

Answer 3

Involves the fusion of two specialized sex cells( a sperm cell and egg cell) That fusion is called ferilization– which resulted in a zygote

Question 4

Fertilization

Answer 4

The joining of male and female gametes to form a cingle cell that contains 23 chromosomes from each parent

Question 5

Gamete

Answer 5

male or female reproductive cell

Question 6

Zygote

Answer 6

a cell formed by the union of two gametes– product of fertilization
– that cell will divide many times(mitosis) to form a blastocyst

Question 7

Testes

Answer 7

two male gonads(balls)

-composed of long coiled tubes called seminefrous tubuleswhere sperm is produces

Question 8

Scrotum

Answer 8

Sac containing testes
-It regulates the temperature of the testes(sperm production is most successful as 35 degrees celcius

Question 9

Spermatogenesis

Answer 9

Process of sperm cells formation which occurs in the seminiferous tubules(Sertolie cells)

Question 10

Sertoli cells and intersitial cells

Answer 10

Sertoli cells secrete chemicals required for nourishment and development of sperm cells– and makes inhinbin

Question 11

Inhibin

Answer 11

Inhibin plays a key role in a negative feedback loop with the pituitary gland to control Follicle-Stimulating Hormone (FSH) levels.

Question 12

FSH

Answer 12

Follicle stimulating hormone- Responsible for stimulating sperm production in the seminiferous tubules

Question 13

LH

Answer 13

LH release is controlled by gonadotropin-releasing hormone (GnRH) from the hypothalamus.

In males, swtimulates interstitial cells to produce testosterone

In females, triggers release of an egg

Question 14

Sperm Route

Answer 14

1.Epididymis
2. Vas Deferens
3. Ejaculatory Duct
4. Urethra

Question 15

Semen

Answer 15

Fluid composed of sperm and ejaculatory fluid

Question 16

Erection

Answer 16

Erectile tissue fills with blood by stimulation of parasympathetic nerve

Question 17

Epididymus

Answer 17

Sperm from the testes are transported to this duct where the sperm become mature and motile(capable of motion)

Question 18

Vas deferens

Answer 18

storage duct connected to epidiymus which leads to the penis via the ejaculatory duct

Question 19

Ejaculatory ducts

Answer 19

tube connecting the vas deferens to the penis

Question 20

Seminal vesicles

Answer 20

-produces a sugar called fructose, which provides energy and sperm(male)

Question 21

Prostate Gland

Answer 21

Produces alkaline fluid that neutralizes the acidity of the vagine ensuring the survival of the sperm

Question 22

Cowper glands(bulbourethra)

Answer 22

Secretes mucus like fluid to protect sperm from acidic vagina

Question 23

Sperm structure

Answer 23

-Acrosome
-Midpiece
-Tail(Flagellum)

Question 24

Acrosome

Answer 24

Cap like structure filled with enzymes that help sperm penetrate the eggs protective layer
NUCLEUS- contains 23 chromosomes from each parent

Question 25

Midpiece

Answer 25

contains mitochondria, which produces ATP9energu) to power sperm movement

Question 26

Tail(Flagellum)

Answer 26

Whip like structure that propels the sperm forwards enabling it to reach the egg