Elbow, Wrist, and hand Kinesiology
The "work horse" of the elbow:
Brachilais
If the spinal cord injury is above _____ there is no wrist function.
C5
What are the myotomes for flexion and supination?
C5-C6
What are the myotomes for extension and pronation?
C7 and C8
The Tinel and Phalen's are tests for what neuropathy?
Carpal tunnel.
A disease where the tendons of the anantomical snuff box, particularly extensor pollicus brevis, are inflammed.
De Quervain's Disease
Name the muscles of wrist extension.
Extensor Carpi ulnaris, Extensor carpi radialis brevis, extensor carpi radialis longus.
Which of the wrist extensors is involved in lateral epicondylitis?
Extensor carpi radialis brevis.
Which tendons make up the anatomical snuff box?
Extensor pollicus longus, extensor pollicus brevis, and abductor pollicus longus.
What is the test to see if someone has DeQuervain's disease
Finkelstein's test.
Name the muscles of radial deviation
Flexor carpi radialis, extensor carpi radialis longus.
Name the muscles of wrist flexion.
Flexor carpi radialis, flexor carpi ulnaris, palmaris longus.
Name the muscles of ulnar deviation
Flexor carpi ulnaris, extensor carpi ulnaris.
Where do you palpate for the extensor carpi radialis brevis?
In line with the 3rd finger.
Where do you palpate for the extensor carpi radialis longus?
In line with the second finger.
A safe position of the hand. It looks like an alligator hand.
Instrinsic plus position.
Which muscles are responsible for precision movements of the hand?
Intrinsics
A clawing of the hand where there are weak intrinsics and imbalanced extrinsics.
Intrisic Minus position.
Where do you palpate for the supinator.
Just distal to the head of the radius.
Where do you palpate for extensor carpi ulnaris?
Just distal to the ulnar styloid process
Extensor muscles of the forearm attach on the....
Lateral epicondyle of the humerus
What are the three arches of the hand.
Longitudinal, distal transverse, and proximal transverse.
Flexor muscles of the forearm attach on the....
Medial epicondyle of the humerus
Innervation of the pronator quadratus.
Median nerve
Which nerve innervates most of the muscles on the anterior and radial side of the forearm?
Median nerve
innervation of the pronator teres
Median nerve
Your patient has the inability to abduct and oppose their thumb. What nerve is affected?
Median nerve.
How many joints does the bicep cross?
Two
How many joints does the triceps muscle cross
Two
The three muscles involved in elbow flexion:
Biceps, brachioradialis, and brachialis.
Muscles for supination of the forearm.
Biceps brachi and supinator.
Nerve that innervates the biceps and brachialis.
Musculocutaneous
Position of the hand when MMT the brachiradialis:
Neutral
Is the pronator quadratus palpable?
No
Position of the hand when MMT the brachialis.
Pronation
Muscles of pronation:
Pronator teres and pronator quadratus
Compression from crutches in the axilla could injure what nerve?
Radial nerve
Innervation of the triceps muscle
Radial nerve
Which nerve innervates most of the muscles on the posterior arm?
Radial nerve
Your patient presents with weakness in the triceps, wrist and finger extensors. What nerve is likely affected?
Radial nerve
innervation for brachiradialis:
Radial nerve
Position of the hand when MMT the biceps brachi.
Supination
A patient with an SCI below C6 would have some wrist movement. What would this be?
Tenodesis
What are the muscles for elbow extension.
Triceps with a little help from aconeus.
Cubital tunnel compression, or compression at the tunnel of Guyon could lead to injury of what nerve?
Ulnar nerve
Which nerve innervates most of the muscles on the anterior/ ulnar side of the forearm?
Ulnar nerve
Your patient has nerve damage and presents with a weak grip. What nerve is affected?
Ulnar nerve
Innervation of the supinator.
radial
