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Which muscles are innervated by the median nerve involving motor function?
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Most extrinsic muscles and four intrinsic muscles: Lumbricals 1 & 2, Opponens pollicis, Abductor pollicis brevis, Flexor pollicis brevis.
What causes the thumb position described in 'Ape Hand' due to median nerve palsy?
The functioning of the adductor pollicis while other muscles involved in opposition and abduction are impaired.
Which digits does the ulnar nerve provide sensation for?
The last two digits, the ring and little fingers.
What motor function issues are commonly seen with median nerve palsy?
Difficulty moving the thumb away from the hand, specifically issues with opposition and abduction.
What supportive treatments are typically recommended for hand pathologies involving nerve palsy?
Supportive splints and rehabilitation exercises.
What is commonly referred to as 'Drop Hand'?
A condition resulting from radial nerve palsy characterized by difficulty in wrist and finger extension.
What is commonly referred to as 'Ape Hand'?
A condition resulting from median nerve palsy where the thumb is close to the other digits due to limited function.
Explain the role of the Posterior Interosseous Nerve (PIN) in radial nerve palsy.
PIN syndrome is related to radial nerve issues after it passes the elbow joint, affecting hand extension.
What muscles are affected motor-wise by ulnar nerve palsy?
Most intrinsic muscles, hypothenar muscles, half of the lumbricals, and interossei muscles.
Which muscles do the radial nerve motor functions primarily affect?
The extensors of the wrist and fingers.
Which digits are affected in terms of sensation by median nerve palsy?
The first three digits and half of the ring finger.
Discuss the motor function issues seen in radial nerve palsy.
Difficulties with hand extension and making a fist due to the atrophy of extensor muscles.
Which specific motor difficulties are associated with ulnar nerve palsy?
Atrophy of intrinsic muscles, difficulty with power grip and precision activities.
What is the characteristic hand position referred to as 'Claw Hand'?
MCP joints in hyperextension with PIP and DIP joints in flexion, typically seen in ulnar nerve palsy.
What are the main nerves involved in the common hand pathologies discussed?
Median nerve, ulnar nerve, and radial nerve.
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