GROSS ANATOMY

Detailed explanation-1: -"Pointing finger” deformity is caused due to injury to the median nerve in the mid-forearm by paralysis of flexor digitorum superficialis. Loss of general sensations over the lateral three and a half fingers over the palmar and dorsal surfaces of the hand can occur with median nerve injury.

Detailed explanation-2: -If the median nerve is damaged at the elbow region, it is known as a proximal injury to the median nerve. Proximal injury to the median nerve often presents with the hand of benediction, a sign that occurs when an individual is unable to make a complete fist.

Detailed explanation-3: -The ulnar nerve originates from the brachial plexus and travels down arm. The nerve is commonly injured at the elbow because of elbow fracture or dislocation. The ulnar nerve is near the surface of the body where it crosses the elbow, so prolonged pressure on the elbow or entrapment of the nerve may cause damage.

Detailed explanation-4: -Pronator teres syndrome occurs in the pronator teres muscle, which is located near the elbow. It occurs when the median nerve is compressed at the elbow. This condition results in a dull, aching pain in the forearm and may also cause thumb and finger numbness or paralysis.