A&p Ii Male Reproductive System

Front 1

Which of the following statements is/are true regarding the biological distinction of male and female? Check all that apply.

-Only the male gamete is motile

-the egg, or ovum, is unique to human females.

-the pems is the copulatory organ of the male

-human females lack a Y chromosome

-Both ova and spermatozoa are considered gametes.

Back 1

All of them

Front 2

Organs that produce gametes, i.e ovaries and testes

Back 2

primary sex organs

Front 3

organs, other than gonads that are necessary fir reproduction, i.e. penis and vagina

Back 3

secondary sex organs

Front 4

features that further distinguish the sexes, i.e. facial hair and enlarged breasts.

Back 4

secondary sex characteristics

Front 5

1. The _________________ gene stimulates the synthesis of testis-determining factor.

2. The protein called ______ interacts with genes on the X chromosome for genes that intiate male development.

3. The male gonadal ridge becomes a rudimentary ________ and begins secreting ______________.

4. Testosterone stimulates the formation of the male reproductive _______.

5. Finally, the testis also secrete ___________________ which causes atrophy of the ___________ duct, which would have developed into the female reproductive system.

Back 5

1. sex-determining Y (SRY)

2. TDF

3. testis; testosterone

4. ducts

5. mullerian-inhibiting factor; paramesonephric

Front 6

Consider the clinical scenario: Semen is very low in volume and the sperm cells have difficulty with motility because there isn't enough of an energy supply to power their flagella. Which of the following accessory glands of male reproduction may be malfunctioning?

- seminal vesicle

- prostate

- bulbourethral glands

-thymus gland

-adrenal gland

Back 6

seminal vesicle

Front 7

1. The secretions of the male reproductive tract originate in the ______ where _______________ cells are produced.

2. The fluid from the ______________ joins the sperm from the ___________ at the ejaculatory duct.

3. The second largest producer of seminal volume, the ___________ gland surrounds the urethra and the ejaculatory duct.

4. Contributing about 5% of the overall seminal volume, the ____________ glands are involved with pre-ejaculatory secretions for lubrication adn preparation of the urethra for the passage of semen.

Back 7

1. Testes sperm

2. seminal vesicles; ductus deferens

3. prostate

4. bulbourethral

Front 8

Which of the following is a change in the male body during puberty? Check all that apply.

- Increase in teste and scrotum size

- hair growth in the axillary region, pubic region, and face

- Increased rate of spermatogenesis

- Increased levels of FSH and LH in the beginning of puberty

- Increased testosterone levels resulting in increased libido (sex drive)

Back 8

- Increase in teste and scrotum size

- Hair growth in the axillary region, pubic region and face.

- increased rate of spermatogenesis

- Increased testosterone levels resulting in increased libido (sex drive)

Front 9

The decrease in reproductive function, resulting in a decrease in testosterone and inhibin secretion, is called ____________________________.

Back 9

-male climacteric

-andropause

Front 10

During which of the following phases do centromeres divide?

Back 10

mitosis and meiosis II

Front 11

During which of the following phases do homologous pairs separate?

Back 11

Anaphase I

Front 12

Arrange the following events in the proper order in which they occur during meiosis I.

1 = Separation of homologous chromosomes

2 = Formation of tetrads

3 = Crossing-over

4 = Independent assortment

Back 12

2, 3, 4, 1

Front 13

T/F. Germ - line cells are haploid but gametes are diplloid

Back 13

false

Front 14

T/F. Independent assortment occurs in prophase I.

Back 14

False

Front 15

The _________________ contributes a clotting component to semen that activates a protein that causes semen to stick to the inside of the female reproductive system rather than flowing back out after ejaculation.

Back 15

prostate gland

Front 16

identify whether it describes meiosis, mitosis, or both

- the end result is 2 identical, diploid daughter cells

-Identical sister chromatids are separated at the centromere.

Back 16

mitosis

Front 17

identify whether it describes meiosis, mitosis, or both

- The end results in 4 genetically different, haploid gametes.

- Homologous pairs of chromosomes align at the equatorial plane.

- The end result is called a gamete.

Back 17

meiosis

Front 18

identify whether it describes meiosis, mitosis, or both

- the process begins with a diploid cell.

-Dna only replicates once.

-During at least one phase, chromatids align at the equatorial plane.

Back 18

both

Front 19

Inability to achieve an erection in response to direct genital stimulation may be due to damage to the _______________________________.

Back 19

parasympathetic fibers of S2 to S4.

Front 20

With regard to the male sexual response, rank the following events in order of occurrence.

- The internal pudendal artery constricts and reduces blood flow to the penis

-Sperm are moved from the ductus deferens to the ampulla and urethra

-The bulbocavernosus muscle contracts and compresses the bulb and root of the penis.

-Erectile tissue engorge with blood.

- Semen is expelled from the urethra

Back 20

1. Erectile tissues engorge with blood.

2. sperm are moved from the ductus deferens to the ampulla and urethra

3. The bulbocavernosus muscle contracts and compresses the bulb and root of the penis.

4. Semen is expelled from the urethra

5. The internal pudendal artery constricts and reduces blood flow to the penis.

Front 21

Identify the stage of the male sexual response to which it pertains.

- The deep artery dilates.

Back 21

excitment

Front 22

Identify the stage of the male sexual response to which it pertains.

-Sperm are moved via muscular contractions from the ductus deferens to the ampulla to the urethra

Back 22

orgasm- Emission

Front 23

Identify the stage of the male sexual response to which it pertains.

- The internal pundendal artery constricts.

Back 23

resolution

Front 24

Identify the stage of the male sexual response to which it pertains.

- The internal urethral sphincter contracts.

Back 24

orgasm- Expusion

Front 25

Identify the stage of the male sexual response to which it pertains.

- The prostate begins to secrete componets of seminal fluid.

Back 25

orgasm- emission

Front 26

Identify the stage of the male sexual response to which it pertains.

- Blood is squeezed from the erectile tissues as the trabecular muscles contract.

Back 26

resolution

Front 27

Identify the stage of the male sexual response to which it pertains.

-Bulbourethral fluid is secreted by the bulbourethral glands

Back 27

excitment

Front 28

Identify the stage of the male sexual response to which it pertains.

- The bulb and root of penis are rhythmically compressed.

Back 28

Orgasm-expulsion