Assignment 25 Equine Flashcards

1
Q

Where is the sacrotuberous ligament in the dog?

A

between transverse process of last sacral vertebra and the ischial tuberosity

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2
Q

What replaces the sacrotuberous ligament in the ox and the horse?

A

sacrosciatic ligament

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3
Q

Where is the sacrosciatic ligament in the ox?

A

extends from lateral part of sacrum to the dorsal border of the ilium and ischium

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4
Q

Where is the sacrosciatic ligament of the horse?

A

extends between the transverse processes of the sacrum and first caudal vertebrae, and dorsal border of ilium and ischium

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5
Q

What is the difference between the ox and the horse sacrosciatic ligament attachments?

A

ox- attached to sacrum

horse- attached to sacrum AND 1st transverse process of caudal vertebrae

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6
Q

What is the difference between the ox and the horse sacrosciatic ligament visually?

A

ox- visible externally

horse- hidden under muscle

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7
Q

What is the difference between the ox and the horse regarding the size of the greater sciatic foramen?

A

ox- small

horse- large

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8
Q

What is the lumbosacral plexus?

A

lumbar plexus + sacral nerves

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9
Q

What runs through the female urethra?

A

urine only

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10
Q

What runs through the male urethra?

A

urine, semen, and seminal secretions

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11
Q

The female urethra is very _____(short/long) and opens into the _____.

A

short; vestibule

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12
Q

The female urethra opens into ________, immediately caudal to the ______ fold of ______ via ___________.

A

vestibule; transverse; hymen; external urethral orifce

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13
Q

What is the name of the orifice in which the female urethra opens into?

A

external urethral orifice

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14
Q

What are the two parts of the male urethra?

A
pelvic part (internal)
penile part (external)
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15
Q

The pelvic urethra lies directly over what?

A

pelvic symphysis

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16
Q

What are the two parts of the pelvic urethra?

A

preprostatic part, prostatic part

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17
Q

Where does the preprostatic part of the pelvic urethra extend?

A

extends from the internal opening to the seminal hillock (seminal colliculus)

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18
Q

Where does the prostatic part of the pelvic urethra extend?

A

passes through prostate gland

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19
Q

What two other structures join the prostatic part?

A

vesicular ducts and deferent ducts (all pass through prostate gland together)

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20
Q

What structures join the preprostatic part?

A

none

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21
Q

How does the urethral wall aid in continence?

A

Urethral wall contains venous plexus, which has erectile properties that aid in continence

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22
Q

Which part of the male urethra is surrounded by urethralis m? What type of muscle is this?

A

pelvic urethra, striated

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23
Q

Which part of the male urethra is associated with accessory sex glands?

A

pelvic urethra

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24
Q

What makes up the external genitalia of the female?

A

vestibule, vulva, clitoris

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25
Q

The dorsal commissure is what shape in horses?

A

pointed

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26
Q

The ventral commissure is what shape in horses?

A

rounded

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27
Q

Which commissure encloses the large glans of the clitoris?

A

ventral commissure

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28
Q

Where does the vulva lie when the cleft is closed?

A

ventral to level of pelvic floor

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29
Q

Where does the vulva lie when the cleft is open? What causes this?

A

dorsal placement caused by wind-sucking

30
Q

What can lead to can infection of the broad ligament?

A

wind-sucking

31
Q

What are the parts of the clitoris?

A

cruca, body, and glans

32
Q

Where is the glans of the clitoris?

A

lies in the clitoral fossa in the ventral end of the vulva

33
Q

What forms the prepuce of the clitoral glans?

A

transverse fold of the vestibular mucosa and central ends of labia

34
Q

Why are clitoral sinuses clinically important?

A

they can harbor microbes responsible for Contagious Equine Metritis

35
Q

What species have a musculocavernous penis?

A

carnivores and horses

36
Q

What species have a fibroelastic penis?

A

pigs and ruminants

37
Q

In which type of penis do blood-filled spaces predominate over CT?

A

musculocavernous

38
Q

Which type of penis has a sigmoid flexure?

A

fibroelastic

39
Q

Which type of penis remains firm when it is not erect?

A

fibroelastic

40
Q

Where does the penis originate?

A

as two cruca from ischial arch

41
Q

What forms the root of the penis? What does it continue as?

A

two cruca converge to form root which continues as body of penis to glans of penis

42
Q

What does the free extremity of the penis point towards?

A

umbilicus

43
Q

What are the divisions of the penis?

A

root, body, free part (lies in prepuce)

44
Q

What is considered erectile tissue?

A

corpus spongiosum

corpus cavernosum

45
Q

Which erectile tissue provides rigidity?

A

corpus cavernosum

46
Q

Which erectile tissue surrounds the penile urethra? What does it expand to form?

A

corpus spongiosum expands to form the glans and dorsal process of the glans

47
Q

What caps the distal end of the corpus cavernosum?

A

glans penis

48
Q

Glans penis extends caudally on the dorsal surface as ________.

A

dorsal process

49
Q

What is the constriction of the middle of glans penis called?

A

collum glandis

50
Q

Which part of the glans penis has conical papillae?

A

corona glandis

51
Q

Which part of the glans penis has a circular edge?

A

corona glandis

52
Q

What is the fossa glandis?

A

the cranial surface of the glans penis that is indented

53
Q

What is the urethral sinus of the penis?

A

dorsal recess of the fossa glandis

54
Q

What is another word for smegma and where is it located?

A

“bean”

In the recesses of the fossa glandis, the urethral sinces and two ventrolateral recesses

55
Q

What forms the prepuce?

A

two folds of preputial skin

external fold = prepuce proper

internal fold = preputial fold

56
Q

What does the external fold consist of?

A

external and internal lamina

57
Q

What is the preputial orifice?

A

where the external and internal lamina meet cranially

58
Q

What is the preputial ring?

A

where the inner and outer lamina of the internal fold meet cranially

59
Q

What does the internal fold consist of?

A

inner and outer lamina

60
Q

What is the preputial cavity?

A

the space between external fold and internal fold

61
Q

What is axis of the testis of the horse?

A

horizontal

62
Q

What is axis of the testis of the bull?

A

vertical

63
Q

What is axis of the testis of the cat?

A

angled towards anus

64
Q

What is axis of the testis of the dog?

A

horizontal

65
Q

What is axis of the testis of the boar?

A

angled towards anus

66
Q

What is the blood supply to the penis?

A

external pudendal a.
obturator a.
internal pudental a.

67
Q

Which main artery of the penis gives off the cranial artery of the penis?

A

external pudendal a.

68
Q

Which main artery of the penis terminates as the dorsal artery of the penis?

A

external pudendal a.

69
Q

Which main artery of the penis terminates as the artery of the penis?

A

internal pudendal a.

70
Q

Which main artery of the penis ends as the artery of the bulb of the penis?

A

internal pudendal a.

71
Q

Which main artery of the penis gives off the middle artery of the penis?

A

obturator a.

72
Q

Which main artery of the penis terminates as the deep artery of the penis?

A

oburator a.