Muscles and Action of the Forearm, Wrist and Fingers Test
How many of the muscles of the thumb are located at the thenar eminence?
4--short
How many muscles act upon the thumb?
8
Which of the following is an action of the extensor indicis?
Adduct the second finger
Which of the following muscles act as antagonists to the brachialis during elbow flexion?
Anconeus
Which muscle is a synergist to the supinator during forearm supination?
Biceps brachii
Which muscle is a strong elbow flexor located deep to the biceps brachii?
Brachialis
Which muscle creates a helpful diving line between the flexors and extensors of the wrist and hand?
Brachioradialis
Which muscle runs the length of the forearm but does not cross the wrist joint?
Brachioradialis
Which is the origin of the brachialis?
Distal half of anterior surface of humerus
What movement will lengthen the fibers of brachialis?
Extension of the elbow
Which muscle's primary task is extension of the second, or "index", finger?
Extensor indicis
Which of the following is an action of the brachia's?
Flex the elbow
Which of the following is an action of the brachioradialis?
Flex the elbow
flexor digitorum superficialis
G
antebrachial fascia
H
Which is the insertion of the pronator teres?
Middle of lateral surface of radius
Which is the origin of the extensor indicis?
Posterior surface of distal shaft of ulna and interosseous membrane
Which of the following is an action of the pronator quadratus?
Pronate the forearm
Which muscle is an antagonist to both the biceps brachii and supinator?
Pronator teres
Which is the origin of the brachioradialis?
Proximal two-thirds of the lateral supracondylar ridge of humerus
Which is the insertion of the extensor indicis?
Tendon of the extensor digitorum at the level of the second metacarpal
Which is the insertion of the brachialis?
Tuberosity and coronoid process of ulna
Which muscle is located between the pisiform and the base of the fifth finger?
abductor digiti minimi
Which of the following is an action of the pronator teres?
assist to flex the elbow
Which is a portion of the origin of the pronator teres?
common flexor tendon
Which movement shortens the fibers of the brachioradialis?
flexion of the elbow
Which is the insertion of the pronator quadrates?
lateral, anterior surface of distal radius
Which is the origin of the pronator quadrates?
medial, anterior surface of distal ulna
Which muscle is primarily responsible for creating opposition of the thumb?
opponens pollicis
Which muscle is a synergist to pronator teres?
pronator quadratus
Which is the insertion of the brachioradialis?
styloid process of radius
