3A. The Male Reproductive System

Question 1

produces hormones and regulates fertility, menstruation, and sexual function, as well as pregnancy and childbirth

Answer 1

female reproductive system

Question 2

responsible for sexual function and urination and produce sperm, store it, and deliver it to the female reproductive system

Answer 2

male reproductive system

Question 3

essentially one long tube, with sperm generated in the gonads at one end, matured along the route, and released from the body at the other

Answer 3

male reproductive system

Question 4

viable sperm can only be produced at temperatures ___ below normal body temperature

Answer 4

2° to 3°C

Question 5

move the testes to regulate their temperature

Answer 5

scrotal sac

Question 6

protrusion of internal organs through the wall of the cavity that usually contains them

Answer 6

hernia

Question 7

hidden orchid, undescended testes, sterile if both testes remain in the body cavity; absence of at least 1 testicle from the scrotum

Answer 7

cryptorchidism

Question 8

hormone involved in making an adolescent male into a fully reproductive adult male

Answer 8

testosterone

Question 9

two types of cell within the seminiferous tubules

Answer 9

• spermatogenic cells
• sertoli cells

Question 10

cell involved in the process of spermatogenesis

Answer 10

spermatogenic cells

Question 11

support system within the seminiferous tubules

Answer 11

sertoli cells

Question 12

immature germ or stem cells

Answer 12

spermatogonia

Question 13

final product of spermatogenesis (or the mature cell) that takes 65 to 75 days

Answer 13

spermatozoon (or spermatozoa)

Question 14

overall process of spermatogenesis

Answer 14

1. spermatogonia
2. sertoli cell
3. mitosis
4. meiosis
5. spermiogenesis
6. formation spermatozoa

Question 15

sperm head that contains digestive enzymes to allow to “drill” that allows the sperm to enter the egg by digesting the egg membrane

Answer 15

acrosome

Question 16

carries its genetic material in its oval head

Answer 16

nucleus

Question 17

contain centrioles; involved in the first cell division after fertilization

Answer 17

neck

Question 18

produce the ATP needed to reach the egg

Answer 18

mitochondria

Question 19

longest section of the sperm tail and help to sperm to move forward

Answer 19

principal piece

Question 20

help the sperm to navigate

Answer 20

end piece

Question 21

after the sperm is produced in the seminiferous tubules, how can it be transported from the male to the female?

Answer 21

through a series of ducts

Question 22

the male reproductive cells produced in the testes

Answer 22

sperm

Question 23

the fluid that contains and transports sperm; is formed as the sperm traverses these ducts

Answer 23

semen

Question 24

the tube-like structures that transport fluids

Answer 24

ducts

Question 25

create a fluid that fills the seminiferous tubule lumen to help the spermatozoa move along to the rete testis

Answer 25

sertoli cells

Question 26

sperm enters the ___, where it matures over 10–14 days to gain mobility and fertilization ability

Answer 26

epididymis

Question 27

when ejaculation occurs, smooth muscle contractions push sperm into the ___

Answer 27

vas deferens

Question 28

carries sperm from the epididymis through the abdominal wall, looping over the ureter and behind the urinary bladder

Answer 28

vas deferens

Question 29

as sperm moves through the male system, glands contribute to ___

Answer 29

semen formation

Question 30

secrete an alkaline, fructose-rich fluid that makes up 60% of semen serves two purposes: neutralizes acidity and provides energy

Answer 30

seminal vesicles

Question 31

has various physiological functions, including open airways, stimulates pain sensation, reduce stomach acid, cause local irritation, and can stimulate sperm motility

Answer 31

prostaglandins

Question 32

may be responsible for the coagulation of semen after ejaculation

Answer 32

clotting factor

Question 33

carries semen through the prostatic urethra

Answer 33

ejaculatory duct

Question 34

a golf ball-sized gland, located at the base of the bladder, completely surrounds the uppermost part of the urethra; produces a milky fluid that makes up 25% of semen volume

Answer 34

prostate glands

Question 35

three parts of the penis

Answer 35

- root - body (shaft) - glans

Question 36

the surgical process of removing the foreskin of the human penis

Answer 36

circumcision

Question 36

secrete an alkaline, mucous fluid into the urethra before sperm arrival

Answer 36

bulbourethral glands

Question 37

an outer layer of skin that covers the penis

Answer 37

foreskin

Question 38

reasons for circumcision

Answer 38

- medical reasons - personal preference - religious/cultural

Question 39

the peak of sexual arousal when the body releases sexual tension and pressure

Answer 39

orgasm

Question 40

one model of physical and emotional changes that occurs during sex

Answer 40

sexual response cycle (SRC)