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Radiology Residency > Tendons/Ligaments/Nerves > Flashcards

Tendons/Ligaments/Nerves Flashcards

1
Q

What provides motor innervation to the flexors of the elbow?

A

Musculocutaneous nerve

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2
Q

What are the flexors of the elbow?

A

Biceps brachii, coracobrachialis, brachialis

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3
Q

What does the axillary nerve innervate?

A

Flexors of the shoulder

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4
Q

What are the flexors of the shoulder?

A

Teres major, teres minor, deltoid

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5
Q

The axillary nerve provides sensory information to what part of the thoracic limb?

A

Cranial arm and forearm

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6
Q

What does the radial nerve innervate?

A

Extensors of the elbow, carpus, and digits.

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7
Q

What are the 9 extensor muscles of the distal thoracic limb?

A
  • Triceps brachii
  • Anconeus
  • Tensor fasciae antebrachii
  • Extensor carpi radialis
  • Common digital extensor
  • Lateral digital extensor
  • Lateral ulnar
  • Oblique carpal extensor
  • Supinator
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8
Q

What nerve provides sensory information to the proximal suspensory area?

A

Deep branch of lateral palmar nerve

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9
Q

The deep branch of the lateral palmar nerve gives off what structures?

A

Medial and lateral metacarpal nerves

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10
Q

What do the medial and lateral metacarpal nerves innervate?

A

Sensory information to the fetlock

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11
Q

What branch innervates the toe?

A

Dorsal branches of medial and lateral digital n

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12
Q

What does the median nerve innervate?

A

Most of the flexors of the forearm

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13
Q

What are the order of the nerves from proximal to distal in the thoracic limb?

A

Median & ulnar nerve –> medial & lateral palmar nn, respectively

Lateral palmar nerve gives off deep branch at level of carpus

Deep branch of lateral palmar nerve –> medial and lateral metacarpal nerves

Communicating branch between medial and lateral palmar nerves at level of mid-metacarpus

Medial and lateral palmar nerves –> medial & lateral digital nerves (distal to fetlock)

Dorsal branches of digital nerves at level of fetlock

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14
Q

Since 90% of equine lameness is in the foot, what 3 blocks are most important?

A

1) Palmar digital
2) Abaxial sesamoid
3) Low palmar/Low 4 point block

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15
Q

What does the palmar digital nerve block anesthetize?

A

Heel area of foot & all structures of the hoof EXCEPT dorsal coronary band
- Blocks medial & lateral digital nerves

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16
Q

What does the abaxial sesamoid nerve block anesthetize?

A

Toe & pastern
- Blocks medial and lateral digital nerves AND dorsal branches

17
Q

What does the low 4 point block anesthetize?

A

Fetlock and distally
- Blocks 6 nerves
1 & 2) Medial & lateral palmar nn
3 & 4) Medial & lateral metacarpal nn
5) Medial cutaneous ante brachial n
6) Dorsal branches of ulnar n
**Does NOT completely block fetlock

18
Q

What nerve block should be performed to anesthetize the dorsal portion of the hoof?

A

Pastern field block/ Ring block of the pastern
- Includes dorsal portion of hoof & everything else that a palmar digital block does

19
Q

What portion of the leg is NOT anesthetized by an abaxial sesamoid block?

A

Dorsal portion of the pastern (P2)

20
Q

What nerves must be blocked to anesthetize the origin of the suspensory ligament?

A

Medial & lateral palmar nerves (@ level of middle carpal joint)

21
Q

What does the femoral nerve innervate?

A

Extensor muscles of the stifle (quadriceps femoris) & iliopsoas

22
Q

The saphenous nerve is the superficial branch of what other nerve?

A

Femoral nerve

23
Q

The lumbosacral trunk gives off what 3 branches?

A

Cranial gluteal
Caudal gluteal
Caudal cutaneous femoral

24
Q

What are the two branches of the ischiatic nerve?

A

Tibial and common peroneal (fibular) nerves

25
Q

What nerves are the distal continuations of the tibial nerve?

A

Medial & lateral plantar nerves (at level of talocrural joint)

26
Q

What is the course/continuation of the common peroneal (fibular) nerve?

A

Branches into superficial & deep fibular nerves

Distally the superficial and deep branches divide into dorsal metatarsal & digital nerves

27
Q

What muscles are the adductors of the thigh?
What nerve innervates them?

A

Adductors of the thigh:
- Pectineus
- External obturator
- Adductor
- Gracilis

Innervated by obturator nerve

Radiology Residency (23 decks)

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