Nerve Palsies in the Limbs Flashcards
Define Hiltons Law
The nerves crossing a joint supply the muscles acting on it and the joint itself.
The hip joint is supplied by which nerve/s?
Obturator nerve (Predominately).
Femoral nerve.
Lateral femoral cutaneous nerve.
What is the brachial plexus?
A large network of nerves supplying the upper limb, extending from the cervical spine to the axilla.
What muscles would be affected if there was damage to nerves C5/6?
Deltoid and shoulder muscles.
Brachialis and biceps.
What is a “porter’s tip” paralysis ?
Erb-Duchenne paralysis
What is Klumpke’s paralysis ?
“clawed” hand
Where does the axillary nerve sit on the humerus?
Surgical neck of the humerus
What are some ways in which the axillary nerve can be damaged?
Fracture of humeral neck
Shoulder dislocation
Saturday night palsy - motor deficit where there is a loss of shoulder abduction.
What are the nerve roots of the radial nerve ?
C5, 6, 7, 8 and T1
What causes a Saturday night palsy?
Fracture of the humeral shaft - causing a wrist drop and sensory deficit in the 1st web space dorsally.
What are the nerve roots of the median nerve?
C7,8 and T1
Which nerve causes carpal tunnel syndrome?
Median nerve
What are the nerve roots of the ulnar nerve?
C7, 8 and T1
A complication of a humeral condyle fracture would be ….
Motor deficit - claw hand and 1st interosseous wasting.
Sensory deficit in the little finger.
Where anatomically does the lumbar plexus lie ?
Surface of the quadratus lumborum and within the body of the psoas muscle
What are the nerve roots of the femoral nerve?
L2-4
Which is the largest branch of the lumber plexus?
Femoral nerve
What muscles does the femoral nerve supply?
Quadriceps and anterior of the thigh
What are the nerve roots of the lateral femoral cutaneous nerve ?
L2-3
What does compression of the lateral femoral cutaneous nerve cause?
Meralgia Paraesthetica
What are the nerve roots of the sciatic nerve?
L4-S3
What is the largest nerve in the body?
Sciatic nerve
What muscles do the sciatic nerve supply ?
Hamstring/posterior thigh
Part of abductor magnus
All of the lower leg and foot muscles via terminal branch
What are the nerve roots of the common filbular nerve?
L4-S3
