Ulnar Nerve

Question 1

Why ulnar nerve is called musicians nerve?

Answer 1

Because it supplies the Intrinsic muscles of hand

Question 2

When there is a fracture at the surgical neck of the humerus, what will be damaged?

Answer 2

Axillary nerve and posterior circumflex humeral artery

Question 3

When there is a mid shaft fracture of the humerus, what will be damaged?

Answer 3

Radial nerve and profunda brachii artery injury

Question 4

When there is a supracondylar fracture of the humerus, what will be damaged?

Answer 4

Median nerve and the brachial artery

Question 5

When there is any damage or fracture of the medial epicondyle what will be damaged?

Answer 5

Ulnar nerve and the ulnar collateral artery

Question 6

Which muscle is responsible for the adduction of the thumb and what is the nerve supply

Answer 6

Adductor pollicis
Ulnar nerve

Question 7

Froments test is used to test the functionality of which nerve and muscle?
and what is froments sign

Answer 7

Ulnar nerve and adductor pollicis muscle
Froment sign is the compensatory flexion of ip joint of thumb to hold the spoon

Question 8

What is the common function of the small muscles of hand supplied by ulnar nerve?

Answer 8

Lumbricals (3,4by ulnar nerve)
Dorsal interosseous
Palmar interosseous

Function is flexion of mcp joint and extention of ip joint

Question 9

PAD DAB?

Answer 9

Palmar interosseous- ADDUCTION of fingers towards the middle finger
So that middle finger has no attachment of palmar interosseous b/c middle finger is already in medial side

Dorsal interosseous- ABDUCTIONS of fingers except thumb and little fingers

Question 10

Which muscle is responsible for abduction of little and thumb ?

Answer 10

Little finger- abductor digiti minimi
Thumb- abductor pollicis brevis and abductor pollicis longus

Question 11

First second third and fourth dorsal interosseous ate attached to which fingers respectively ?

Answer 11

First dorsal interosseous: attatched to index finger
2nd and 3rd : to middle finger
4th to : ring finger
ie: from lateral to medial side