Male Reproductive System

Question 1

What are all the structures that make up the male reproductive system? (5)

Answer 1

Penis
Testes/Testicles
Epididymis
Vas Deferens
Male Glands

Question 2

What are the two functions of the penis?

Answer 2

Excretion and reproduction

Question 3

How long is the male urethra?

Answer 3

20cm long

Question 4

What kind of muscle makes up the urethra?

Answer 4

Smooth muscle

Question 5

Draw out the penis!

Answer 5

Done

Question 6

What are the parts of the penis? (6)

Answer 6

Corpus cavernosum
Urethra
Corpus spongiosum
Arteries
Veins
Nerves

Question 7

What is the corpus cavernosum?

Answer 7

Erectile tissue (contains most of the blood during erection)

Question 8

What does the corpus spongiosum accomplish during an erection?

Answer 8

Keeps the urethral open

Question 9

Where are the arteries, veins and nerves located on the penis?

Answer 9

Underneath

Question 10

During an erection how many times more blood enters the penis than leaves?

Answer 10

7x

Question 11

What do the capillary bed sphincters do during an erection?

Answer 11

Relax and allow blood to flow in

Question 12

What does it mean to have a glans penis?

Answer 12

The end of the penis is bulbous.

Question 13

What is the purpose of a glans penis?

Answer 13

Used to remove other male penis from the woman’s body.

Question 14

What do guard sperm do?

Answer 14

Tangle up other men’s sperm

Question 15

What is a teste?

Answer 15

The male gonad

Question 16

Define scrotum

Answer 16

A fleshy sac that holds the the testicles

Question 17

What is the main function of the testicles

Answer 17

To produce sperm

Question 18

Why are the testicles located outside of the body?

Answer 18

Sperm is produced best at 2 degrees cooler than body temperature

Question 19

If the testicles are cold how do they bring themselves closer to the body?

Answer 19

The scrotum has ligaments attached to the inner wall that is able to pull in the testicles

Question 20

What is a negative result of having the testicles at the wrong temperature?

Answer 20

Misshapen sperm

Question 21

Where are the seminiferous tubules found?

Answer 21

In the testicles

Question 22

Describe the seminiferous tubules

Answer 22

Very small
Delicate
250 m long

Question 23

What is the outside layer of cells in the seminiferous tubules?

Answer 23

Spermatogonia (primary spomatocytes)

Question 24

When Spermatogonia divide, what are its daughter cells called?

Answer 24

Secondary spomatocytes

Question 25

When secondary spomatocytes divide what are their daughter cells called?

Answer 25

Spermatids

Question 26

What does each spermatid become?

Answer 26

A sperm

Question 27

Are primary spermatocytes haploid or diploid?

Answer 27

Diploid

Question 28

Are spermatids haploid or diploid?

Answer 28

Haploid

Question 29

Define diploid

Answer 29

Normal chromosome count of a cell

Question 30

Define haploid

Answer 30

Half the number of chromosomes in a normal cell

Question 31

What are the nurse cells in the seminiferous tubules called?

Answer 31

Sertoli cells

Question 32

What do the interstitial cells of leydig do on the side of the seminiferous tubules?

Answer 32

Produce testosterone

Question 33

Draw the sperm

Answer 33

Done

Question 34

Is sperm haploid or diploid?

Answer 34

Haploid

Question 35

What is on the tip of the head of the sperm?

Answer 35

Acrosome

Question 36

What is an acrosome?

Answer 36

An enzyme that eats away at the outer wall of the egg cell

Question 37

What is all around the head of the sperm?

Answer 37

Binding sites

Question 38

What are in the mid piece of the sperm?

Answer 38

Mitochondria

Question 39

What is the tail of the sperm called?

Answer 39

A flagella

Question 40

How many sperm are produced by a man daily?

Answer 40

300 million

Question 41

How long does it take sperm to grow?

Answer 41

9 weeks

Question 42

How long does it take for sperm to mature?

Answer 42

7 weeks

Question 43

Where do sperm mature?

Answer 43

Epididymus

Question 44

Where is the epididymus located?

Answer 44

On the side of the testicle (one per testicle)

Question 45

What does the inside of the epididymus look like?

Answer 45

Full of tubules

Question 46

What happens to malformed sperm in the epididymus?

Answer 46

Immune system kills them off

Question 47

Where do the sperm start to move their "tails"?

Answer 47

The epididymus

Question 48

Describe the vas deferens

Answer 48

Very slender tubule a tad greater in diameter than a human hair

Question 49

How can damage to the vas deferens effect sperm?

Answer 49

Limit the amount of sperm that passes through

Question 50

What does the vas deferens connect to?

Answer 50

The epididymus and the urethra

Question 51

What is the connection between the vas deferens and the urethra called?

Answer 51

Ejaculatory duct

Question 52

Where is the prostate gland located?

Answer 52

Wrapped around the urethra close to the bladder

Question 53

What is a vasectomy?

Answer 53

Cutting the vas deferens stopping sperm from moving into the urethra

Question 54

What supports the testicles

Answer 54

Hangs from blood vessels and the vas deferens

Question 55

What is it called when the testicles twist?

Answer 55

Etortion

Question 56

What are the three men glands?

Answer 56

Cowper's gland Seminal vesicles Prostate

Question 57

What do the male sex glands do when the male is sexually aroused?

Answer 57

Produce fluid

Question 58

What gland produces the most fluid?

Answer 58

Prostate gland

Question 59

What does the fluid from the Cowper's gland do?

Answer 59

Lubricates and cleans out anything in the urethra as well as neutralizing any acid

Question 60

What is found in the fluid from the seminal vesicles and what are their purposes? (3)

Answer 60

- fructose (sugar for energy for sperm) - sodium bicarbonate (baking soda to neutralize acidity in the vagina) - mucus (for the sperm to move around in)

Question 61

Describe the prostate gland

Answer 61

Muscular outer wall | Spongy inside

Question 62

How does the fluid move from the prostate to the urethra?

Answer 62

Spongy cells hold the fluid and the muscular wall contracts moving everything into the urethra

Question 63

What are all the fluids from the glands together called?

Answer 63

Semen