Anatomy Lecture 4: Thoracic Horse Flashcards Preview

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Flashcards in Anatomy Lecture 4: Thoracic Horse Deck (31):
1

What is the latin word for the knee of the horse

Carpus

2

what is the proper word for the cannon bone?

Metacarpal 3

3

Long pastern/fetlock bone is also known as the

proximal phalanx (P1)

4

short pastern bone/pastern bone is also known as the

middle phalanx (P2)

5

coffine bone, aka

distal phalanx (P3)

6

Which large muscle is best for intramuscular injections?

the pectoral muscles

7

Name the tendons involved in the stay apparatus

-superficial digital flexor tendon
-deep digital flexor tendon
-suspensory apparatus
-superior/proximal check ligament
-inferior/distal check ligament

8

Suspensory apparatus (aka suspensory ligament) is part of which muscle?

interosseus muscle

9

what are the muscles involved in the stay apparatus?

-serratus ventralis thoracis muscle
-biceps brachii muscle
-lacertus fibrosus muscle
-exentsor carpi radialis muscle
-common digital extensor muscle
-triceps brachii muscle

10

What is the cause Tendinitis/bowed tendon of the SDFT?

-Tendinitis is inflammation of the tendon, caused by overextension of the fetlock, which can lead to tearing
-overexentsion can be caused by poor confirmation in a breed, poor trimming/shoeing, working a fatigued horse, poor footing, or direct trauma to the tendon

11

What happens to tendon fibers when "over loading" occurs? When "complete failure" occurs?

-some fibers break during over loading
-complete failure is the tearing of the entire tendon

12

What surgical procedure is done to fix tendinitis at the SDFT? What does the surgery do?

-superior check ligament desmotomy
-removes stress from SDFT, distributing to muscular portion of SDF

13

Flexor tendon rupture is the complete tearing of which tendons? what is tendon rupture 1, 2, and 3?

-superficial digital flexor
-deep digital flexor
-suspensory ligament
1=SDF, 2= SDF+DDF, 3=SDF+DDF+SL

14

What joint is best for injecting drugs? What muscle is closest?

-carpal joint
-the joint is caudal to the lateral digital extensor muscle

15

Club foot is the uncontrolled [action] of the _____ bone

flexion of the coffin bone

16

what surgical process treats club foot?

inferior check ligament desmotomy

17

What are the split bones?

-carpal bones 2 and 4

18

The button of ____ bone is found just cranial to the ______

splint bones, cranial to the suspensory ligament

19

Tendinitis of the fetlock is treated by which surgery
What occurs in the surgery?

annular ligament desmotomy
-removes compression on the annular ligament, improving circulation

20

windpuff/windgall is another name for what?

Tendinitis of the Annular ligament, constrction/inflammation of the ligament

21

the proximal sesamoid bones are found

between the proximal phalanx and metacarpal

22

Navicular bone is also know as the _____ and lies _____ to the _____ bone

distal sesamoid bone, lies palmar to the coffin bone

23

Coronet band is found where

where the hoof bone meets the leg

24

which parts of the hoof are weight bearing structures?

the hoof wall and the frog

25

Where are horse shoe nails embedded

into the white line

26

-explain the hoof mechanism, or how does the hoof support the horse's weight? What else does it do?

-when weight is put on the hoof, the heel area expands (contracts again when weight is removed)
-the expanding and contracting of the hoof helps pump blood in the veins back up the leg

27

How do hoof side bones arise?

-from frequent concussive force applied to the hoof, such as when walking on cement
- in response the cartilage in the hoof calcifies, become sidebone, which can stop the hoof from contracting properly

28

-Quittor is____
-treated by

necrosis of the collateral cartilage
-treated by removal of necrotic tissue

29

navicular disease is

the inflammation or degeneration of the navicular bone and its surrounding tissues

30

local anesthetic should be applied where in the bovine forelimb?

dorsal common digital vein 3

31

sole ulcers on cow hooves should be treated by applying a

block, over the claw