Action
What is the anconeus?
What is the pronator quadratus?
What is brachioradialis?
The radial nerve innervates this elbow flexor.
What is the brachioradialis?
You are washing your hair. Your shoulder is in abduction, requiring this muscle to activate.
What is the deltoid or supraspinatus?
The flexor pollicus brevis is responsible for this action.
What is thumb MP flexion?
This muscle originates on the subscapular fossa of the scapula.
What is the subscapularis?
These muscles insert onto the greater tuberosity of the humerus.
What are the supraspinatus, infraspinatus, & teres minor?
The ulnar nerve and median nerve both innervate these two muscles.
What is the flexor digitorum profundus and the lumbricals?
Your friend is styling their hair into a ponytail. In order to do this the fingers need to abduct to widen the elastic, by activating this muscle.
What is the dorsal interossei
These two actions occur at the CMC joint of the thumb.
What is palmar abduction & radial abduction?
This muscle originates on the transverse processes of 1st-4th cervical vertebrae
What is Levator Scapula?
This hand muscle is unique because it originates and inserts into soft tissue.
What are the lumbricals?
The suprascapular nerve innervates these 2, out of the 4 rotator cuff muscles.
What is the supraspinatus & infraspinatus?
You are carrying a shopping bag at your side. In this position this extrinsic finger flexor is active.
The lumbricals perform these simultaneous actions.
What is MP flexion with IP extension
These muscles originate on the hook of the hamate and the flexor retinaculum.
What is the flexor digit minimi brevis and the opponens digiti minimi?
These muscles both insert onto the base of the distal phalanx of the thumb, one volarly & the other dorsally.
What is the flexor pollicis longus and extensor pollicus longus?
Flexor digiti minimi brevis, abductor digiti minimi, opponens digiti minimi
Your patient had an injury to the radial nerve. He complains that he can't lift his fingers keyboarding tasks, because this muscle isn't functional.
What is the extensor digitorum?
This motion requires contribution from these muscles: Upper trapezius, levator scapula, Lower trapezius, serratus anterior.
What is scapular upward rotation?
The common extensor tendon is the origin point for several forearm & finger extensors. This wrist extensor does not originate at the common extensor tendon.
What is the extensor carpi radialis longus?
The coracoid process of the scapula serves as an attachment point for several muscles. This muscle is the only one that inserts onto the coracoid process.
What is the pectoralis minor?
These are 4 of the 8 muscles are innervated by the median nerve.
What are the: pronator teres, pronator quadratus, flexor digitorum superficialis, flexor digitorum profundus, flexor pollicus longus, opponens pollicus, abductor pollicus brevis, flexor pollicus brevis (any 4 are correct)
What are flexor pollicus brevis, abductor pollicus brevis, opponens pollicus.