WorksheetsUpper Extremity Muscles Practice
Total questions: 15
Worksheet time: 8mins
Which muscle is the primary flexor of the elbow joint?
Biceps brachii
Triceps brachii
Brachialis
Brachioradialis
The brachialis muscle is innervated by the:
Radial nerve
Ulnar nerve
Musculocutaneous nerve
Median nerve
The ulnar nerve is responsible for innervating the majority of the intrinsic muscles of the hand. Which forearm muscle is innervated by the ulnar nerve?
Flexor carpi radialis
Flexor digitorum profundus
Extensor digitorum
Brachialis
The deltoid muscle is primarily innervated by which nerve?
Axillary nerve
Radial nerve
Musculocutaneous nerve
Ulnar nerve
The biceps brachii muscle is innervated by the:
Musculocutaneous nerve
Ulnar nerve
Radial nerve
Median nerve
What is the primary action of the deltoid muscle?
Flexion of the elbow
Abduction of the shoulder
Extension of the wrist
Pronation of the forearm
The muscle that forms the bulk of the posterior compartment of the arm and is a powerful extensor of the elbow is the:
Triceps brachii
Brachialis
Biceps brachii
Brachioradialis
The primary action of the supinator muscle is:
Pronation of the forearm
Supination of the forearm
Flexion of the wrist
Extension of the fingers
The radial nerve is the primary innervation for which muscle?
Brachialis
Brachioradialis
Triceps brachii
Biceps brachii
The pronator teres muscle is innervated by the:
Median nerve
Ulnar nerve
Radial nerve
Musculocutaneous nerve
Which muscle contributes to both flexion of the elbow and supination of the forearm?
Brachialis
Brachioradialis
Triceps brachii
Anconeus
In addition to abduction, the anterior fibers of the deltoid also contribute to:
Medial rotation of the arm
Lateral rotation of the arm
Extension of the shoulder
Flexion of the elbow
Which muscle inserts into the radial tuberosity and is involved in both elbow flexion and supination?
Brachialis
Brachioradialis
Pronator teres
Flexor carpi radialis
The muscles responsible for flexing the fingers at the metacarpophalangeal joints are the:
Flexor carpi radialis and flexor carpi ulnaris
Flexor digitorum superficialis and flexor digitorum profundus
Flexor pollicis longus and flexor digitorum profundus
Extensor digitorum and extensor carpi radialis longus
The muscle responsible for extending the fingers at the metacarpophalangeal joints is the:
Extensor digitorum
Flexor carpi radialis
Flexor pollicis longus
Extensor carpi radialis longus
