Upper limb - movement and Grips Flashcards
Name the 5 general functions of the upper limb (MSSPE)
- Manipulation
- Sensation
- Stabilisation
- Protection
- Expression/Communication
Describe/show abduction and adduction of the fingers
and
(radial) adduction/abduction of the thumb
Describe/show palmar abduction/adduction of the thumb
and
flexion/extension of the fingers
show extension/flexion of the thumb (saddle joint)
show reposition/opposition of the thumb
and
bending/flattening of the fingers
make a cylinder (power) grip
make a hook (power) grip
make a span/ball/palmar (power) grip
Name the Precision grips of the hand
- 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)
Name the Power grips of the hand
- cylinder
- hook
- span/ball
which muscle groups generally facilitate precision and power grips?
forearm and intrinsic hand muscles
what type of movement might:
(flexor carpi ulnaris)
and
(flexor carpi radialis)
produce?
flex elbow and wrist:
what type of movement might:
(Palmaris longus) produce?
flex elbow and wrist
what type of movement might:
(Flexor digitorum superficialis and profundus) produce?
flex wrist and fingers
what type of movement might:
(Flexor pollicis longus) produce?
Remember: anterior muscles of the arm typically cause flexion
flex wrist and thumb
what type of movement might:
(Extensor carpi radialis longus and brevis) produce?
Remember: posterior muscles of the arm typically cause extension
extend and abduct the wrist
Do “Ulnaris” muscles abduct or adduct?
Ulnaris = Adduct
Does “Radialis” muscles abduct or adduct?
Radialis = Abduct
what does the muscle (Abductor pollicis longus) do?
Abducts the thumb
what does the muscle (Extensor digitorum) do?
extends the wrist and fingers
what does the muscle (Extensor indicis) do?
extends the wrist and index finger
what does the muscle (Extensor digiti minimi) do?
extends the wrist and little finger
what do the muscles (Extensor pollicis longus and brevis) do?
extend the wrist and thumb
what is the Brachial Plexus?
a network of nerves in the shoulder that carries movement and sensory signals from the spinal cord to the arms and hands
which vertebrae does the Brachial Plexus supply from?
C5-8 and T1
In terms of supply to the hand and forearm, what are the names of the three nerves that the Brachial plexus divides into?
Ulnar Nerve
Radial Nerve
Median Nerve
which parts of the hand does the Ulnar nerve take up?
which parts of the hand does the Radial nerve take up?
which parts of the hand does the Median nerve take up?
