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A & P 2 > Lab: Male Reproductive System > Flashcards

Lab: Male Reproductive System Flashcards

1
Q

what lines the outer surface of the spermatic cord and aids in temp control so that stored sperm stay alive? How does this mechanism work?

A

cremaster muscle. When temps are too hot, it relaxes an dlwoers the scrotum away from the torso. When temps are too cold, it contracts bringing the scrotum closer to the body.

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2
Q

what do the testes do and where are they located

A

sperm-making organ within the scrotum

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3
Q

where is sperm made within the testes

A

seminiferous tubules

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4
Q

what are the characteristics of cells associated with the seminiferous tubules (endocrine and exocrine)

A

exocrine area of seminiferous tubules: stratified in a way that psuedo-chambers are created where meiosis occurs and sperm cells are created
endocrine area: between walls of adjacent seminiferous tubules, within surrounding connective tissue, are interstitial cells. They produce testosterone

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5
Q

what is a straight tubule and what is its function

A

made of several merged seminiferous tubules. Sperm pass through straight tubule to a maze of tubes within testis called rete teste

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6
Q

where do sperm exit the testis after moving through the rete teste

A

efferent ductules

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7
Q

from the efferent ductules, where does sperm go through next

A

epididymis

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8
Q

where do sperm mature

A

epididymis (long coiled tube on posterior wall of testis). At tail end of epididymis, sperm are fully matured and stored for 2 months

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9
Q

if ejaculation occurs where does sperm move from after the epididymis

A

through the ductus deferens/vas deferens

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10
Q

what is the enlarged segment at the end of the ductus deferens

A

ampulla

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11
Q

where does sperm combine with glandular fluid when leaving the ductus deferens

A

ejaculatory duct

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12
Q

where does the ejaculatory duct travel through

A

prostate gland between the ductus deferens and urethra

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13
Q

when in the ejaculatory duct, sperm are now a part of a fluid that is a precursor to *****

A

semen

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14
Q

what is the end of the spermatic tubes

A

ejaculatory duct

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15
Q

what is the last passageway sperm travel before leaving the body

A

urethra

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16
Q

what are the 3 regions of the urethra and why are they named what they are

A

they are named after the surrounding tissue.
prostatic urethra
membranous urethra
spongy urethra/penile urethra

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17
Q

describe how sperm move through the urethra

A

first enter the prostatic urethra, then the membranous urethra, and then then longest part which is the spongy urethra

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18
Q

what is the tissue surrounding the spongy urethra

A

erectile tissue called corpus spongiosum

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19
Q

what are the glands that make seminal fluid

A

seminal vesicles

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20
Q

what percentage of semen is seminal fluid

A

70%

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21
Q

what does the seminal fluid do

A

provides nutrients to promote sperm mobility and virility

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22
Q

where does precursor semen with with the prostate gland fluid

A

urethra

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23
Q

how much of semen is prostatic gland fluid and what does fluid from the prostate gland do?

A

30% and is activates sperm, is slightly acidic to neutralize the alkalinity of seminal fluid

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24
Q

what do the bulbourethral glands do?

A

secretions enter the membranous urethra prior to semen ejaculation (is not a part of semen). Neutralizes pH of urethral lining as urine is acidic. Lubricates the tip of the penis to aid in vaginal penetration (precum)

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25
Q

what is the skin called that covers the penis

A

prepuce/foreskin

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26
Q

what is the head of the penis called

A

glans

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27
Q

what is the corpora cavernosa

A

is an erectile tissue, engorges with blood for erection

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28
Q

what does the corpus spongiosum do

A

keeps penile urethra open for passage of semen

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29
Q

what is spermatogenesis

A

production of sperm cells via meiosis

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30
Q

what do spermatogonia do

A

before puberty, perferom mitosis that builds a stem cell population for developing sperm

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31
Q

what are spermatids

A

secondary spermocytes that are haploid. undgergo spermatogenesis and develop into spermaozoa

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32
Q

what is a mature male sex cell

A

sperm

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33
Q

what are sustentacular cells

A

components of seminiferous tubules epithelium. provide the maintenance required for healthy developing cells

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34
Q

A

A
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35
Q

B

A
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36
Q

C

A
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37
Q

D

A
38
Q

E

A
39
Q

F

A
40
Q

G

A
41
Q

H

A
42
Q

I

A
43
Q

J

A
44
Q

K

A
45
Q

L

A
46
Q

A

A

ductus deferens/vas deferens

47
Q

B

A

seminal vesicle

48
Q

C

A

glans

49
Q

D

A

urethral opening (external)

50
Q

E

A

testes

51
Q

F

A

ampulla

52
Q

G

A

prostate gland

53
Q

H

A

membranous urethra

54
Q

I

A

spongy urethra

55
Q

J

A

corpus cavernosum

56
Q

K

A

corpus spongiosum

57
Q

L

A

scrotum

58
Q

what type of tissue

A

penile tissue

59
Q

A

A
60
Q

B

A
61
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C

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62
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D

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63
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A

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64
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B

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C

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D

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Q

E

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68
Q

F

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69
Q

G

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70
Q

H

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71
Q

I

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72
Q

B

A
72
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A

A
73
Q

A

A
74
Q

B

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75
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A

A
76
Q

B

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C

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78
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D

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E

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80
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F

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81
Q

G

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H

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I

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J

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Q

K

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86
Q

L

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87
Q

M

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88
Q

N

A
89
Q

what type of tissue

A

testes

A & P 2 (11 decks)

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