Proximal attachment is the lateral epicondyle of the humerus, distal attachment is the extensor expansions of medial four digits. Its action is to extend the medial four digits and the metacarpophalangeal joint and extend hand at wrist joint.
What is the extensor digitorum
100
Helps to flex and adduct the arm
What is the coracobrachialis
100
The muscles of the dorsal forearm are affected and no longer able to extend the wrist.
What is radial nerve palsy
100
Scaphoid, lunate, triquetrum, and pisiform
What is the proximal row of carpal bones
200
Innervates the coracobrachialis, biceps brachii, and brachialis
What is the Musculocutaneous nerve
200
Semitendinosus, semimembranosus, biceps femoris
What are the hamstring muscles
200
Flexes the distal interphalangeal joint (DIPJ) of the digits 2-4
What is the flexor digitorum profundus
200
This pulley is cut when a person has a trigger finger release
What is the A-1 Pulley
200
Bony prominence located on the dorsum of the distal radius that the extensor pollicis longus tendon courses around at a 45 degree angle.
What is Lister's Tubercle?
300
Innervates the teres minor and deltoid, shoulder joint, and skin over inferior part of deltoid
What is the Axillary nerve
300
Supraspinatus, infraspinatus, subscapularis, and teres minor.
What are the rotator cuff muscles
300
Extends teh forearm; chief extensor of forearm
What is the triceps
300
The Scaphoid
What is the most frequently fractured carpal bone
300
Oral prepatory, oral, pharyngeal, and esophageal stage.
What are the stages of eating?
400
Innervates one and one-half flexor muscles in forearm, and most small muscles in the hand, and skin of hand medial to a line bisecting 4th digit (ring finger)
What is the ulnar nerve
400
Iliocostalis, Longissimus, and Spinalis
What are the erector spine muscles?
400
Compress and support abdominal viscera, flex and rotate trunk
What are the internal and external oblique muscles?
400
Tendonitis/tenosynovitis of the Extensor Pollicis Brevis and Abductor Pollicis Longus
What is DeQuervain's Tenosynovitis?
400
Located on the scapula this bony prominence forms the "roof" above the humerus and serves as a proximal attachment for the deltoid muscle.
What is the acromion
500
Innervates the hamstring muscles of the thigh
What is the Sciatic nerve
500
It has two proximal attachments (one being the tip of coracoid process of scapula and the second being the supraglenoid tubercle of the scapula). The distal attachment is the tuberosity of radius and fascia of forearm via bicipital aponeurosis. Its action is elbow flexion and forearm supination.
What is the biceps brachii
500
Extend thigh; flex leg and rotate it medially when knee is flexed.
What is the semitendinosus and semimembranosus muscles of the hamstring.
500
Disruption of the terminal extensor tendon due to blunt force (i.e. ball hitting the end of the finger)
What is a Mallet Finger?
500
Extensor Pollicis Longus makes up this dorsal compartment