ch 19 - male reproductive system

Question 1

testes

Answer 1

male gonads, site of sperm production

Question 2

scrotum

Answer 2

fleshy pouch that encloses the testes

Question 3

male reproductive accessory glands

Answer 3

seminal glands, prostate, bulbo-urethral glands

Question 4

seminal glands function

Answer 4

produce the fluids that will turn into semen

Question 5

prostate function

Answer 5

small, donut-shaped gland below the bladder

creates fluids in your semen and force semen through your urethra when you ejaculate.

Question 6

bulbo-urethral glands function

Answer 6

pea-size glands Below the prostate; ducts open into spongy urethra

-secretes a protective alkaline mucus that decreases sperm damage in the urethra
-AND lubricates the urethra

Question 7

male external genitalia

Answer 7

penis and scrotum

Question 8

muscles of the scrotum

Answer 8

dartos muscle and cremaster muscle

Question 9

dartos muscle

Answer 9

layer of smooth muscle on the dermis of scrotum

Question 10

cremaster muscle

Answer 10

skeletal muscle deep to the dermis that regulates the temperature of the testes

Question 11

semineferous tubules

Answer 11

slender and tightly coiled tubules in the lobules of the testes

Question 12

interstitial endocrine cells function

Answer 12

produce androgens

Question 13

epididymis function

Answer 13

cooked tube that is the start of the male reproductive tract and site of sperm storage/maturation

Question 14

vas deferens function

Answer 14

tube that travels from the epididymis and transports mature sperm to the urethra
- duct that empties into the urethra

Question 15

prostate function

Answer 15

small round organ that produce the fluid that nourishes and transports sperm (seminal fluid).

Question 16

semen

Answer 16

mixture of sperm and seminal fluid

Question 17

penis

Answer 17

tubular organ for sex and urine

Question 18

foreskin

Answer 18

fold of skin surrounding the tip of the penis

Question 19

spermatogenesis

Answer 19

process of sperm production and formation of haploid sperm

Question 20

spermigenesis

Answer 20

physical maturation of sperm

Question 21

sertoli/nurse cells

Answer 21

cells that support spermatogenesis

Question 22

spermatogonia

Answer 22

stem cells that divide by mitosis to produce 2 daughter cells

Question 23

testosterone

Answer 23

main male sex hormone

Question 24

primary spermatocyte

Answer 24

a diploid (2n) cell that contains two sets of chromosomes, or 46 chromosome

Question 25

secondary spermatocyte

Answer 25

haploid (N) cells that contain half the number of chromosomes -divides to produce spermatids during the second meiotic division of spermatogenesis

Question 26

spermiation

Answer 26

process by which mature spermatids are released from the supporting Sertoli cells into the lumen of the seminiferous tubule

Question 27

steps of spermatogenesis

Answer 27

1. mitosis of spermatogonium 2. meiosis 1 3. meiosis 2 4. spermiogenesis

Question 28

meisosis

Answer 28

type of cell division in which the number of chromosomes are halved in the daughter cells

Question 29

what happens and is produced during mitosis of spermatogonium?

Answer 29

produces primary spermatocyte (2n)

Question 30

what happens and is produced during meiosis 1

Answer 30

diploid cells become haploid cells and are called secondary spermatocytes, containing 23 chromosomes

Question 31

what happens and is produced during meiosis 2

Answer 31

the secondary spermatocytes yield 4 haploid SPERMATIDS, each containing 23 chromosomes

Question 32

what happens in spermiogenesis

Answer 32

physical maturation where the SPERMATIDS become a single MATURE spermatoza

Question 33

urethra function

Answer 33

transports both urine and semen from the penis

Question 34

the greater vestibular gland in females is analogus to what gland in males

Answer 34

bulbo-urethral gland

Question 35

vasectomy

Answer 35

litigation of vas deferens

Question 36

ability of sperm cells to move along the ductus deferns is due to

Answer 36

peristaltic waves

Question 37

interstitial cells

Answer 37

cells that produce testosterone in the testis

Question 38

testes are suspended from what structure

Answer 38

spermatic cord

Question 39

where in the testes do the sperm mature

Answer 39

epididymis

Question 40

which accessory gland produces 20 to 30 percent of semen volume

Answer 40

prostate gland

Question 41

which accessory gland neutralizes the acidity of semen before its ejaculated?

Answer 41

bulbo-urethral gland

Question 42

sperm travel to the exterior through the urethral regions in what sequence?

Answer 42

prostatic urethra, membranous urethra, spongy urethra

Question 43

The hormone that promotes spermatogenesis along the seminiferous tubules is

Answer 43

follicle-stimulating hormone (FSH)