Gross Anatomy

Question 1

Testis:

Answer 1

Male gonad; produces sperm.

Question 2

Epididymis:

Answer 2

Coiled tube; superficial to testis; holds maturing sperm

Question 3

Scrotum:

Answer 3

External pouch; holds testes outside body cavity

Question 4

Spermatic cord:

Answer 4

Wraps structures that connect and support the testis

Question 5

Ductus deferens:

Answer 5

Tube that conducts sperm from testis to prostate

Question 6

Inguinal canal:

Answer 6

Tunnel that allows passage of spermatic cord

Question 7

Seminal vesicle:

Answer 7

Gland that makes most of semen contents

Question 8

Prostate gland:

Answer 8

Donut shaped gland, secrets fluid to activate sperm

Question 9

Bulbourethral gland

Answer 9

Tiny red gland that produces mucus to drain penile urethra

Question 10

Ejaculatory duct:

Answer 10

Short tube that conducts seminal fluid and sperm to urethra

Question 11

Urethra

Answer 11

Conducts sperm outside of body

Question 12

Penis

Answer 12

Male copulatory organ

Question 13

Glans penis

Answer 13

Enlarged tip

Question 14

Prepuce

Answer 14

Cuff of foreskin usually removed at birth

Question 15

Erectile tissue:

Answer 15

Fills with blood during sexual excitement, causes erection; spongy tissue

Question 16

Seminiferous tubule:

Answer 16

Location of sperm production

Question 17

Sperm head

Answer 17

Contains DNA

Question 18

Sperm tail:

Answer 18

Flagellum; enables swimming

Question 19

Interstitial cell:

Answer 19

Produces testosterone

Question 20

Mitosis:

Answer 20

Cell division that takes place to accomplish growth or tissue repair

Question 21

Meiosis:

Answer 21

Cell division for sexual reproduction purposes

Question 22

In humans how many chromosomes are in the nuclei of brain cells, skin cells, muscle cells, pancreas cells, and liver cells?

Answer 22

46

Question 23

Cells that are not sex cells

Answer 23

Somatic cells

Question 24

All somatic cells are

Answer 24

2N

Question 25

If a somatic cell divides, the resulting daughter cells are?

Answer 25

Identical

Question 26

Mature gametes have ___ chromosomes?

Answer 26

23

Question 27

Seminiferous tubules contribution to semen composition:

Answer 27

Sperm (5%)

Question 28

Prostate gland contribution to semen composition

Answer 28

Slightly acidic, antibiotic fluid (30%)

Question 29

Bulbourethral gland contribution to semen composition

Answer 29

Alkaline lubricating fluid (less than 5%)

Question 30

Seminal vesicles contribution to semen composition

Answer 30

Sugar, vitamin C, prostaglandins, clotting proteins (60%)

Question 31

Spermatogenesis

Answer 31

Sperm production

Question 32

Spermiogenesis

Answer 32

After meiosis

Question 33

How many chromosomes are present in the nucleus of a spermatogonium?

Answer 33

46 (2N)

Question 34

FSH

Answer 34

Produced by Anterior Pituitary. Produces sperm.

Question 35

ICSH (LH in girls)

Answer 35

Produced by Anterior Pituitary. Released by testosterone.

Question 36

Testosterone

Answer 36

Produced by Interstitial cells. Secondary sex characteristics

Question 37

Inhibin

Answer 37

Produced by seminiferous tubules. Inhibits FSH secretion