Peripheral nerve disease Flashcards
What is meant by mononeuritis multiplex?
Several individual nerves are affected
What is meant by axonal degeneration?
Damage to the nerve fibre from the periphery. Seen most often in toxin neuropathys
What is meant by a radiculopathy?
Disease affecting the nerve roots
What is meant by polyneuropathy?
Diffuse symmetrical disease usually commencing peripherally
What nerve becomes trapped in carpal tunnel syndrome?
Median
What nerve is compressed in cubital tunnel syndrome?
Ulnar
What nerve is most likely to become compressed if you sleep with your arm hanging over a chair?
Radial nerve plasy
A 21 yoga instuctor presents with a foot drop and weakness. There is a patch of weakness of the anterolateral border of the dorsum of the foot. Ankle jerk is present. No other symptoms or history; What nerve is most likely affected?
Common peroneal nerve palsy
What peripheral nerve problem can be a result of thiamine deficiency?
Subacute combined degeneration of the spinal cord.
A 54 year old lady presents with pain in her right arm. She describes pain radiating to the back of her arm and also described tingling in her middle finger. On examination there is loss of the triceps reflex. What nerve is damaged and how?
C7 root lesion
What is the treatment for cauda equina syndrome?
Urgent MRI and decompression
What is thoracic outlet syndrome?
A fibrous band or cervical rib extends from the tip of the C7 treansverse process towards the first rib to compress the lower brachial plexus roots (C8 and T1)
Which dermatome is the thumb part of?
C6
Which dermatome is the middle finger part of?
C7
Which dermatome is the little finger part of?
C8
Which dermatome is the inner forearm part of?
T1
Which dermatome is the upper inner arm part of?
T2
Which dermatome is the knee part of?
L3
Which dermatome is the medial malleolus part of?
L4
Which dermatome is the dorsum of the foot part of?
L5
Which dermatome are the first three toes part of?
L5
Which dermatome is the lateral malleolus and two little toes part of?
S1
Which dermatome is the posterior head and neck part of?
C2 and C3
Which dermatome is the nipple part of?
T4
Which dermatome is the umbilicus part of?
T10
Which dermatome is the xiphoid process part of?
T6
Which nerve allows elevation of the shoulder?
C4
Which nerve allows shoulder abduction?
C5
Which nerve allows elbow flexion/wrist extension?
C6
Which nerve allows elbow extension/wrist flexion?
C7
Which nerve allows finger flexion?
C8
Which nerve allows finger abduction?
T1
Which nerve allows hip flexion?
L2
Which nerve allows knee extension?
L3
Which nerve allows ankle dorsi flexion?
L4
Which nerve allows extension of the great toe?
L5
Which nerve allows knee flexion?
S2
Which nerve allows ankle planter flexion/ankle eversion/hip extension?
S1
