Bovine Nerves Flashcards

1
Q

Describe the aetiology of radial paralysis

A

C7, C8 and T1 outflow
Motor inntervation of the carpus and digit extensors
Sensation to the lateral side of the limb is lost
Excessive traction on limb
Trauma to the scapulohumeral area
Recumbency

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2
Q

What are the clinical signs and presentation of radial paralysis?

A

Proximal nerve damage - limb held in flexion with elbow dropped. Cranial wall of the hoof scuffs the floor during locomotion
Distal nerve damage - carpus and fetlock held in flexion

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3
Q

Where does the suprascapular nerves exit the spin and what are the signs of paralysis of this nerve?

A

C6/C7
Limb abducts when weight bearing
Supra/infraspinatus atrophy

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4
Q

Where does the radial nerve exit the spin and what are the signs of paralysis of this nerve?

A

C7-8/T1
Flexed limb
Dropped elbow
Cranial hoof scuffs the floor

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5
Q

Where does the brachial plexus exit the spin and what are the signs of paralysis of this nerve?

A

C5/T2
No muscle control/tone in forelimb
Flaccid, non-weight bearing limb

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6
Q

Describe the aetiology of obturator paralysis

A

L4, L5, L6 outflow
Innervates the adductor muscles of the hindlimb
Dystocia due to foetal oversixe

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7
Q

What are the clinical signs of obturator paralysis?

A

Unilateral or bilateral
Inability to adduct the limb leading to abduction
Animals may slip causing severe abduction and trauma to the leg, hip and pelvis

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8
Q

What are the three types of treatment that you can use for nerve damage in cattle?

A

Anti-inflammatory drugs
Nursing care
Supportive dressings

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