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VAP > equine limb > Flashcards

equine limb Flashcards

1
Q

cannon bone

A

MCIII

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2
Q

long pastern

A

P1

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3
Q

short pastern

A

P2

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4
Q

coffin, pedal bone

A

P3

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5
Q

fetlock joint

A

Metacarpal phalangeal joint

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6
Q

proximal sesamoid bones

A

two on the distal end of MCIII

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7
Q

distal sesamoid bone

A

navicular bone, distal P2

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8
Q

navicular bursa

A

acts as a cushion on the navicular bone where DDFT passes over the bone

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9
Q

navicular bone mechanical theory

A
  1. redirects DDFT to increase torque

2. acts as an alternative route for weight bearing

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10
Q

navicular bone vascular theory

A

palmar digital a. – palmar a. of P2 – gives of proximal and distal navicular plexi – distal palmar arch

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11
Q

navicular disease

A

diagnosed by local analgesia and managed by palmar digital neurectomy

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12
Q

stay apparatus

A

musculoskeletal elements which allow horses to stand with minimal muscular effort

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13
Q

stay apparatus forelimb

A
  1. suspensory lig. prevents MCPj overextension
  2. palmar ligg. prevents PIPj overextension
  3. carpal check lig. to DDFT prevents DiPj overextension
  4. radial check lig. to SDFT prevents PiPj overextension
  5. carpal. bones lock in a straight line
  6. elbow snap joint aided by fibrous old pronators
  7. trunk is slung on relatively fibrous serratus ventralis
    8a. biceps tendon of origin sticks in bicipital groove
    8b. lacerates fibrosus
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14
Q

laceratus fibrosus

A

internal tendon through biceps and ECR - scapula to cannon, carpus locked and elbow locked – prevents shoulder flexion

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15
Q

stay apparatus hindlimb

A

1-3. similar to forelimb - no radial check lig. tarsal check lig. variable, additional origin of SL on tarsal 4

  1. hock snap joint
  2. SDF contains a fibrous band from femur to tuber calcis – hock locks when stifle does
  3. stifle locking - medial patellar lig.
  4. accessory lig. (pelvis to femur) prevents abduction
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16
Q

stifle locking

A

medial patellar lig. hooks over medial trochlear ridge of femur

  • fixes stifle in extension
  • semimemb locks
  • biceps unlocks
17
Q

reciprocal apparatus

A

peroneus Tertius - fibrous band from femur to tarsus

  • forms reciprocal apparatus with SDF
  • hock and stifle flex and extend in synchrony
18
Q

MCPj collateral ligament

A

runs on either side from MCIII to P1

19
Q

short collateral ligament of PSB

A

ligament that runs from collateral ligament to proximal sesamoid bones

20
Q

PiPj collateral ligament

A

run on either side of P1 to P2

21
Q

abaxial and axial palmar ligaments

A

palmar side between P1 and P2 - 2 lateral, 2 medial

22
Q

DiPj collateral ligament

A

collateral ligament between P2 and P3

23
Q

suspensory ligament

A

interosseous, tendinous, originates proximally on palmar surface of MCIII
- gives extensor slips yo extensor tendon

24
Q

inter-sesamoidean ligament

A

ligament between proximal sesamoid bones on MCIII

25
Q

straight ligament

A

MCIII to P2

26
Q

oblique ligament

A

MCIII to P1, either side of straight ligament

27
Q

cruciate ligaments

A

deep to straight ligament between MCIII and P1

28
Q

short ligaments

A

deep to cruciate ligaments, between MCIII and P1

29
Q

scutum

A

smooth structure over proximal sesamoid bones, provides smooth surface for DDFT to glide over

30
Q

collateral ligaments of navicular

A

colateral ligaments running from distal P1 to navicular bone on P2

31
Q

impar ligament

A

runs from navicular bone to P3

32
Q

superficial digital flexor tendon

A

originates from SDF muscle on medial humeral epicondyle, splits into two over P1, inserts on P2

33
Q

deep digital flexor tendon

A

originated from DDF muscle on medial humeral epicondyle, inserts on P3

VAP (5 decks)

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