Week 3 - Palm Of Hand

Question 0

What two bones articulate with the radius?

Answer 0

Scaphoid & Lunate

Question 1

What happens in Skiers thumb?

Answer 1

The normal sesamoid bone gets pushed up from the first metacarpal to the first proximal phalanges. This causes soft tissue swelling. Can be seen in X-Ray.

Question 2

What is the most frequently fractured bone in the wrist?

Answer 2

Scaphoid - usually fractures when people fall

Question 3

What are all the bones in a finger?

Answer 3

A finger branches from a metacarpal into the proximal phalanx, then to the middle phalanx and finally to the distal phalanx.

Question 4

What symptoms occur with carpal tunnel?

Answer 4

The palm of the hand has normal feeling but the digits have problems.

Question 5

What nerve supplies the palm?

Answer 5

The palmar branch of the median nerve supplies the palm.

Question 6

What is Dupuytren contracture?

Answer 6

It is a shortening, thickening, and fibrosis of the palmar fascia and aponeurosis.

Question 7

What is the ulnar canal syndrome (guyon tunnel syndrome)?

Answer 7

It’s hypoesthesia (reduced sense of touch or sensation - partial loss of sensitivity to sensory stimuli) of the medial one and one-half fingers and weakness of intrinsic hand muscles

Question 8

What is the function and where does it terminate: Flexor pollicis longus?

Answer 8

Flexes the thumb, terminates at the base of the distal phalanx of the thumb

Question 9

What is the function and where does it terminate: flexor digitorum superficialis?

Answer 9

It flexes the fingers & It extends and splits over the body of the phalanx and inserts into the base of the middle phalanx.

Question 10

Where do the tendons of the flexor digitorum profundus terminate?

Answer 10

They pass through the split in the tendons of the flexor digitorum superficialis and continue distally to insert into the base of the distal phalanx.

Question 11

What does the flexor digitorum profundus do?

Answer 11

It flexes the DIP joints.

Question 12

What is the function of palmar interossi?

Answer 12

PADS - palmar interossi adduct

Question 13

What do the dorsal interossi do?

Answer 13

DAB - Dorsal interossi abduct

Question 14

What does the median nerve supply in the hand?

Answer 14

Palm of the hand, palmar (volar) surface of three and one-half fingers, dorsal side of distal phalanx of these digits

Question 15

What does the ulnar nerve supply in the hand?

Answer 15

Hypothenar eminence, the medial side of the ring finger and all of the little finger

Question 16

Where is the adductor pollicis and what innervates it?

Answer 16

It’s from the middle fingers to the thumb and it’s innervated by the ulnar nerve.

Question 17

What palm bone is most commonly dislocated?

Answer 17

Lunate

Question 18

What muscles become weakened in carpal tunnel syndrome?

Answer 18

Thenar muscles

Question 19

If the ulnar nerve and artery is cut, what will likely happen?

Answer 19

Decrased ability to extend the interphalangeal joints

Question 20

What carpal bones are often fractured in Colles’ fractures?

Answer 20

Lunate and scaphoid

Question 21

What condition shows weakness in thenar muscles and impaired sensation in the hand involving palmar surface of thumb and 2.5 fingers. The person may have difficulty buttoning her shirt or using hand tools.

Answer 21

Carpal tunnel syndrome

Question 22

What are the most likely sites of infection in deep finger cuts?

Answer 22

Bursa and sheaths

Question 23

What bone lies in the floor of the anatomical snuff box?

Answer 23

Scaphoid

Question 24

What nerve controls the flexation of the index finger DIP?

Answer 24

Anterior interosseous branch of the median nerve

Question 25

What muscles are responsible for fine movement os the 2nd and 3rd digits?

Answer 25

First and second lumbricals