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LA Sx scs RUSVM > Castration > Flashcards

Castration Flashcards

1
Q

Why is a teaser surgery performed?

A

To detect or aid in the identification of estrus to allow females to be bred by males of greater genetic material

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2
Q

What is a ‘ridgling’ or ‘high flanker’?

A

Cryptorchid

Also ‘rig’ or ‘original’

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3
Q

What is the removal of a segment of the ducuts deferens called?

A

Vasectomy

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4
Q

In addition to pregnancy, what does a non-entry teaser prevent?

A

Dissemination of STDs

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5
Q

In which species can the urethral process be removed if calculi are lodged there?

A

Sheep

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6
Q

Where is uethral obstruction most common in the steer?

A

Distal sigmoid flexure

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7
Q

If warrented, at what age is castration indicated for horses? Farm animals?

A

Horse: 1-1.5 years

Farm animals: 10-14 days

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8
Q

What type of emasculatome only crushes?

A

Pincer emasculatome (Burdizzo)

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9
Q

Incision of what changes a castration from closed to open?

A

Vaginal tunic

Out-pouching of peritoneal lining

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10
Q

What type of emasculator is this?

a. Reimer
b. Plain
c. Burdizzo
d. Serra
e. White
f. Hausmann

A

b Plain

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11
Q

What type of emasculator is this?

a. Reimer
b. Plain
c. Burdizzo
d. Serra
e. White
f. Hausmann

A

e. White

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12
Q

What type of emasculator is this?

a. Reimer
b. Plain
c. Burdizzo
d. Serra
e. White
f. Hausmann

A

Reimer

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13
Q

What type of emasculator is this?

a. Reimer
b. Plain
c. Burdizzo
d. Serra
e. White
f. Hausmann

A

f. Hausmann
* Smaller than the others*

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14
Q

Which type of emasculator is best for gelding horses in standing position?

A

Serra modified

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15
Q

T/F: Double ligation when removing the testicle decreases the risk of infection.

A

False, increases risk

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16
Q

Which cells nourish spermatozoa? Which cells produce androgens?

A

Sertoli nourish

Leydig produce hormones

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17
Q

At birth, foal testis are located in the __________.

A

Inguinal canal

In scrotum in 1-2 weeks

18
Q

What are 2 consequences of cryptorchidism?

A

Reduced sperm production

Aggressive behavior

19
Q

What are the 3 forms of cryptorchidism?

A

Inguinal

Abdominal

Incomplete abdominal

20
Q

Which form of cryptorchidism (including the side) is most common in horses?

A

Left-sided abdominal

21
Q

Is bilateral or unilateral cryptorchidism more common?

A

Unilateral

22
Q

Does inguinal cryptorchidism more common on the left or on the right?

A

Right

Abominal= Left; Left testicle is larger so it stays in the abdomen more often

23
Q

Why is it difficult to diagnose an abdominal cryptorchid testicle on rectal palpation?

A

It is small and soft

24
Q

What is used for the hormonal assay diagnosis of cryptorchidism? What is measured?

A

Human Chorionic Gonadotropin (hCG)

Testosterone

25
Q

T/F: Cryptorchidism can resolve but it may take up to 1 year wthout treatment.

A

True

26
Q

What is the most common surgical approach for a cryptorchidectomy?

A

Dorsal recumbency

Under GA

27
Q

Which testicle should be removed first when castrating a unilateral ridgling?

A

The retained testicle

Abort sx if can’t find it

28
Q

What should you find when trying to locate an inguinally retained testicle? Where will you find it?

A

Gubernaculum

At the cranial medial edge of the inguinal ring

Fibrous structure

29
Q

What is septic funiculitis?

A

Scirrhous cord formation- a complication that can occur after castration; chronic, low-grade staphylococcal infection that results in formation of abscesses and fibrous tissues

Champignon= Strep infection

30
Q

T/F: Castration is the most frequently performed surgery in horses.

A

True

31
Q

Water seed is a possible complication of castration. What is this?

A

A hydrocele or vaginocele which forms after castration, possibly months to years after, which is more common after an open castration

A fluid-filled painless swelling

32
Q

How is scirrhous cord formation treated?

A

Surgery

33
Q

What does it mean for a horse to be ‘Proud cut’?

A

He is exhibiting continued masculine behavior after castration

Due to retention of epididymal tissue

34
Q

What do you do if you incise the corpus cavernosum penis during castration?

A

Surgically reappose the tunic to prevent further complications

35
Q

T/F: Post-castration eventration can occur up to 6 days post-op and is most often the small intestine.

A

True

36
Q

How many cells/uL and for how many days indicate post-castration peritonitis?

A

>100,000 cells/ uL for 5 days

37
Q

What is a “false rig”?

A

A gelding with stallion-like behavior

38
Q

T/F: Persistent masculine behavior after castration can be learned behavior, especially in older animals.

A

True

39
Q

What is the fetal mesenchymal attachment from the caudal aspect of the fetal testis to the
scrotum?

A

The gubernaculum

40
Q

What is the slit in the aponeurosis of the external abdominal oblique muscles called?

A

The superfiical inguinal ring

41
Q

Geldings generally have a serum testosterone concentration of how many pg/mL?

A

<40

42
Q

What are the cranial, caudal, and ventromedial borders of the deep inguinal ring?

A

Caudal edge of the internal abdominal oblique muscle

The pelvis and inguinal ligament

The rectus abdominis muscle and prepubic tendon

LA Sx scs RUSVM (4 decks)

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