Upper limb - movement and Grips

Question 1

Name the 5 general functions of the upper limb (MSSPE)

Answer 1

• Manipulation
• Sensation
• Stabilisation
• Protection
• Expression/Communication

Question 2

Describe/show abduction and adduction of the fingers

and

(radial) adduction/abduction of the thumb

Answer 2

Question 3

Describe/show palmar abduction/adduction of the thumb

and

flexion/extension of the fingers

Answer 3

Question 4

show extension/flexion of the thumb (saddle joint)

Answer 4

Question 5

show reposition/opposition of the thumb

and

bending/flattening of the fingers

Answer 5

Question 6

make a cylinder (power) grip

Answer 6

Question 7

make a hook (power) grip

Answer 7

Question 8

make a span/ball/palmar (power) grip

Answer 8

Question 9

Name the Precision grips of the hand

Answer 9

• terminal opposition (two fingertip “pincer”)
• sub-terminal opposition (tri-pod, distal meta-carpal pinch)
• pulp grip (pulpy bit of finger, the “okay” sign mixed with chef’s pinch)
• scribe grip (like pulp, but to hold a pen)
• Lateral pinch grip/key grip (gentle fist thumb flat over curl of pointer)

Question 10

Name the Power grips of the hand

Answer 10

• cylinder
• hook
• span/ball

Question 11

which muscle groups generally facilitate precision and power grips?

Answer 11

forearm and intrinsic hand muscles

Question 12

what type of movement might:
(flexor carpi ulnaris)
and
(flexor carpi radialis)
produce?

Answer 12

flex elbow and wrist:

Question 13

what type of movement might:
(Palmaris longus) produce?

Answer 13

flex elbow and wrist

Question 14

what type of movement might:
(Flexor digitorum superficialis and profundus) produce?

Answer 14

flex wrist and fingers

Question 15

what type of movement might:
(Flexor pollicis longus) produce?

Remember: anterior muscles of the arm typically cause flexion

Answer 15

flex wrist and thumb

Question 16

what type of movement might:
(Extensor carpi radialis longus and brevis) produce?

Remember: posterior muscles of the arm typically cause extension

Answer 16

extend and abduct the wrist

Question 17

Do “Ulnaris” muscles abduct or adduct?

Answer 17

Ulnaris = Adduct

Question 18

Does “Radialis” muscles abduct or adduct?

Answer 18

Radialis = Abduct

Question 19

what does the muscle (Abductor pollicis longus) do?

Answer 19

Abducts the thumb

Question 20

what does the muscle (Extensor digitorum) do?

Answer 20

extends the wrist and fingers

Question 21

what does the muscle (Extensor indicis) do?

Answer 21

extends the wrist and index finger

Question 22

what does the muscle (Extensor digiti minimi) do?

Answer 22

extends the wrist and little finger

Question 23

what do the muscles (Extensor pollicis longus and brevis) do?

Answer 23

extend the wrist and thumb

Question 24

what is the Brachial Plexus?

Answer 24

a network of nerves in the shoulder that carries movement and sensory signals from the spinal cord to the arms and hands

Question 25

which vertebrae does the Brachial Plexus supply from?

Answer 25

C5-8 and T1

Question 26

In terms of supply to the hand and forearm, what are the names of the three nerves that the Brachial plexus divides into?

Answer 26

Ulnar Nerve
Radial Nerve
Median Nerve

Question 27

which parts of the hand does the Ulnar nerve take up?

Answer 27

Question 28

which parts of the hand does the Radial nerve take up?

Answer 28

Question 29

which parts of the hand does the Median nerve take up?

Answer 29