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CVM: 720 Anatomy II > lecture 36: Male Repro > Flashcards

lecture 36: Male Repro Flashcards

(79 cards)

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1
Q

what is this zebra showing

A

Flehmen response (equine)

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2
Q

what is this moose showing

A

Flehmen response (ruminant)

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3
Q
A
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4
Q

Identify the following:
IcM –
RPM –
SP –
T –

A

IcM – cavernosus muscle
RPM – retractor penile muscle
SP – penile shaft
T – testis

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5
Q

Identify the following:
A –
BP –
CM –
DD –
GP –

A

A – ampulla
BP – prostate gland
CM – cremaster muscle
DO – ductus deferens
GP – glans penis

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6
Q

identify the following
UB –
UM –
VG -

A

UB – Urinary bladder
UM – urethra
VG - Seminal Vesicle gland

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7
Q
A
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8
Q
A
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9
Q
A
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10
Q
A
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11
Q

Male sex cells are produced by the __________

A

testicles

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12
Q

where are the male sex cells contained (in some mammals)

A

contained in scrotum

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13
Q

why is the scrotum important for the male sex cells (sperm)

A

its an external sac that holds the testicles outside the body to keep sperm 4-5 degrees COOLER than body temp

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14
Q

the primary male organ of repoduction

A

testicles

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15
Q

what are the 2 main jobs of the testicles

A

make sperm
secrete testosterone

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16
Q

of these 3 species, which has the LONGEST sperm relative to body weight

A

house mouse

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17
Q

what are the 2 important tubes transferring sperm cells

A

*ductus deferens
*urethra

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18
Q
A

ductus deferns

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19
Q

slender tube from epididymus to urethra which moves sperm to the urethra at ejaculation

A

ductus deferens

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20
Q

long tube from bladder to penis; passageway for urine and sperm out of the body

A

urethra

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21
Q

Ungulate(hooved) penis types:
what species has the musculocavernous type

A

equine

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22
Q

Ungulate penis types:
what species has the fibroelastic type

A

bovine
caprine
ovine

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23
Q

male organ of copulation which conveys semen and urine out of body

A

penis

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24
Q

allows extension and retraction of the penis; sigmoid flexure extends in copulation

A

penis retractor muscle

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25
26
common site for urethral calculi
- Sigmoid flexure
27
what must relax to expose the penis for examination or treatment
Retractor penis muscle
28
1- Sigmoid flexure 2- Retractor penis muscle 3- Preputial skin
29
Identify A,B,C,D
30
a persistent frenulum that should have broken down naturally around the time of birth
31
this is a urethral process of what animal
urethral process of the bull
32
this is a urethral process of what animal
urethral process of the ram (ovine)
33
should an animal with a persistent frenulum be bred?
If necessary either of these can be removed surgically, but an animal with a persistent frenulum should not be used for breeding purposes.
34
Descent of the Testicles: Fetal development begins within the ________caudal to the_______
abdomen kidneys
35
Descent of the Testicles: The testicles are located ______ between the peritoneum and the body wall.
retroperitoneally
36
Descent of the Testicles: Initially the ________ passes ventrally through the inguinal canal into the scrotum. It is followed by the ___________
gubernaculum testicle and epididymis
37
Descent of the Testicles: As the testicle moves through the inguinal canal it picks up the ________ and the fascial layers of the inner and outer _______ wall
parietal peritoneum abdominal
38
As the testicle moves through the inguinal canal it picks up the parietal peritoneum and the fascial layers of the inner and outer abdominal wall. These become the _________once outside of the abdomen.
vaginal tunic
39
an opening in the caudal part of the abdominal wall that is a potential space between the flesh of the internal abdominal oblique and the aponeurosis of the external abdominal oblique
Inguinal Canal
40
The deep inguinal ring is found at the free edge of the ____________
internal abdominal oblique
41
The superficial inguinal ring lies between the pelvic and abdominal tendons of the _____________
external abdominal oblique aponeurosis
42
1- Testis 2- Gubernaculum 3- Vaginal Process 4- Testicular artery
43
a jelly-like cord stretching from the testicle to the tail of the epididymis, and then into the inguinal canal
gubernaculum
44
gubernaculum becomes the ________
scrotal ligament
45
what does this depict
Movement of testis from peritoneal cavity into the scrotum
46
Timing of testicular descent: Horse
10-14 days before or after parturition
47
Timing of testicular descent: Ruminants and pigs
before parturition
48
Timing of testicular descent: Carnivores
slightly after parturition
49
50
identify the glands
51
identify 1,2,4
* 1- Testis * 2- Head of the epididymis- * 2`- Body * 2``- Tail * 4- Deferent duct
52
How do spermatozoa mature in the epididymus
Spermatozoa mature into mature sperm in the head and body. (Head not shown here, but should be opposite of the tail)
53
continuation of the epididymis for transportation of sperm
Deferent duct
54
Coil of testicular veins around the testicular artery, drawing heat away from the artery to cool blood before reaching the testicle
Pampiniform plexus
55
The serosal fold connecting the visceral and parietal vaginal tunics
Mesorchium
56
identify 5-8
5- Pampiniform plexus 6- Mesorchium 7- Proper ligament of the testis 8- Ligament of the tail of the epididymis
57
58
what are the 4 main functions of the epididymus
1. passageway for sperm out of the seminiferous tubules 2.store sperm 3.fluid secretion to nourish sperm 4.place for sperm maturation
59
60
* 1- Head of the epididymis * 2- Body of the epididymis * 3- Pampiniform plexus
61
what adds fructose and citric acid to nourish the sperm
seminal vesicles (accessory glands)
62
what gland is located at the neck of the bladder
prostate gland
63
what 4 things does the prostate gland (accessory gland) do
1. cleans the urethra prior to and during ejaculation 2. provides minerals for sperm 3. provides medium for sperm transport 4. provide the characteristic odor of semen
64
65
In general, these glands are associated with the urethra and add the liquid portion of the ejaculate
Accessory Sex Gland
66
T/F During a breeding soundness exam in cattle and horses the accessory sex glands may be palpated rectally
true
67
what should we assess accessory glands for when palpating
symmetry, and should not be overly sensitive when palpated make sure to palpate ALL accessory glands
68
what accessory glands do horses have
69
what accessory glands do ruminants have
70
what accessory glands do pigs have
71
what accessory glands do dogs have
72
what accessory glands do cats have
73
what is the other name for the bulbourethral gland
Cowper's gland
74
T/F bulbourethral gland (cowpers) is a paired organ
true
75
what is the purpose of bulbourethral gland (cowpers)
cleans urethra prior to semen passage
76
77
T/F bovines have a cartilaginous penis
true
78
what is the route the sperm travels out of the body
testicle epididymus ductus deferns urethra glans penis
79
Identify A and B
A) vesicular gland B) bulbourethral gland

CVM: 720 Anatomy II (44 decks)

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