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Anatomy 2 > Lecture 36: Ruminant Male Reproductive System (Exam 3) > Flashcards

Lecture 36: Ruminant Male Reproductive System (Exam 3) Flashcards

1
Q

Describe the flehman response

A

Get the scent of the female/urine into the olfactory system

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2
Q

Label the following:

A
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3
Q

Label the following

A
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4
Q

List the basic movement of sperm through the repro system

A

Teste -> ductus deferens -> urethra

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5
Q

Label the following

A
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6
Q

Where is the prostate found

A

Dorsal to the Urethra

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7
Q

What occurs in males w/ PNS & SNS stimulation

A
  • PNS - erection
  • SNS - ejaculate
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8
Q

T/F: Semen is made in the testes

A

False; The testes make sperm & during ejaculation fluids are added to the sperm to create semen

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9
Q

Label the following

A
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10
Q

Label the following of the sperm

A
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11
Q

Label the following ovum

A
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12
Q

Describe male sex cells

A
  • Produced by testicles
  • Contained in the scrotum
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13
Q

What is the scrotum

A

External sac that hold testicles outside of the body to keep sperm @ 4 to 5 degrees cooler than body temp

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14
Q

What are the primary roles of the testicle

A
  • Produce sperm
  • Secrete testosterone
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15
Q

Whose sperm is bigger mouse of an elephants

A

A house mouses sperm

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16
Q

What is the ductus deferens

A

Slender tube from the epididymis to the urethra which moves sperm to the urethra @ ejaculation

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17
Q

What is the urethra

A
  • Long tube from the bladder to the penis
  • Passageway for urine & sperm out of the body
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18
Q

What is the difference btw/ the type of penis in equine & ruminants

A
  • Equine have a musculocavernous type of penis
  • Firbroelastic type of penis
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19
Q

What is the penis

A

Male organ of copulation which conveys semen & urine out of the body

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20
Q

What is the penile retractor muscle

A
  • Allows extension & retraction of the penis
  • Sigmoid flexure extends in copulation
21
Q

Label the following

22
Q

What is the role of the prepuce

A

Covers the penis to protect the glans penis when not in use

23
Q

Label the following

24
Q

What is this

25
Q

What is the frenulum

A
  • Used to spray there scent around
  • Used to “spray” semen into the female
26
Q

Describe the descent of the testicles

A
  • Begins w/in the abdomen caudal to the kidneys
  • Testicles are located retroperitoneally btw/ the peritoneum & the body wall
  • The gubernaculum passes ventrally through the inguinal canal into the scrotum
  • The testicles & epididymis follows the gubernaculum
  • As the testicle moves through the inguinal canal it picks up the parietal peritoneum & the fascial layers of the inner & outer abdominal wall (Becomes the vaginal tunic once outside of the abdomen
27
Q

Describe the inguinal canal

A
  • An opening in the caudal part of the abdominal wall
  • It is a potential space btw/ the flesh of the internal abdominal oblique & aponeurosis of the external abdominal oblique
  • The deep inguinal ring is found @ the free edge of the internal abdominal oblique
  • Superficial inguinal ring lies btw/ the pelvic & abdominal oblique aponeurosis
28
Q

Label the following

29
Q

What is the gubernaculum

A
  • A jelly like cord stretching from the testicle to the tail of the epididymis then goes into the inguinal canal
  • Becomes the scrotal ligament
30
Q

What are the components of the spermatic cord

A
  • Ductus deferens
  • Testicular VAN
31
Q

When do the testes descent

A
  • Varies by species
  • Horse usually 10 14 days before or after parturition
  • Ruminants & pigs it occurs before parturition
32
Q

How do sperm cells travel through the repro system

A

Made in testicle -> head of epi -> body -> tail -> ductus deferens -> urethra -> glans penis -> if they have it the urethral process

33
Q

Label the following (just the numbers #)

34
Q

What is the pampiniform plexus

A

Coil of testicular veins around the testicular artery that are used to draw heat away from the artery to cool blood before it reaches the testicle

35
Q

Label the following

36
Q

What happens in the head & body of the epididymis

A

Spermatozoa mature into mature sperm in the head & body

37
Q

What is the mesorchium

A

The serosal folds connecting the visceral & parietal vaginal tunics

38
Q

Label the following

39
Q

Label the following

40
Q

Describe the epididymis

A
  • Long coiled tube that is a path for sperm
  • Provide passageway for the sperm to exit out of the seminiferous tubules
  • Storage for sperm
  • Fluid secretion to nourish the sperm
  • Place for sperm maturation
41
Q

Label the following:

42
Q

What are the accessory glands in the ruminant male repro system

A
  • Seminal vesicles
  • Prostate glands
43
Q

What is the job of the seminal vesicles

A

Add fructose & citric acid to nourish the sperm

44
Q

Describe the prostate gland

A

Located @ the neck of the bladder
* Cleans the urethra prior to & during ejaculation
* Provides minerals for the sperm
* Provides the medium for sperm transport
* Provides the characteristics odor of the semen

45
Q

What is associated w/ the urethra & adds the liquid portion of the ejaculate

A

Accessory sex glands

46
Q

Fill out the following

47
Q

What is the cowper’s gland

A
  • Also called the bulborethral gland
  • Paired organs
  • Cleans the urethra prior to sement passage
48
Q

Label a & b

A
  • a: vesicular gland
  • b: bulbourethral gland

Anatomy 2 (49 decks)

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