Podcast
Questions and Answers
Which muscle is involved in the lateral rotation of the arm?
Which muscle is involved in the lateral rotation of the arm?
Which muscle is responsible for the abduction of the arm?
Which muscle is responsible for the abduction of the arm?
Which muscle is responsible for the elevation of the scapula?
Which muscle is responsible for the elevation of the scapula?
Which muscle is involved in the lateral flexion of the neck?
Which muscle is involved in the lateral flexion of the neck?
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Which muscle assists in scapular protraction from a retracted position?
Which muscle assists in scapular protraction from a retracted position?
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Which muscle is responsible for the extension of fingers #2-5 at the MCP, PIP & DIP joints?
Which muscle is responsible for the extension of fingers #2-5 at the MCP, PIP & DIP joints?
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Which nerve innervates the Extensor Carpi radialis longus muscle?
Which nerve innervates the Extensor Carpi radialis longus muscle?
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Which muscle is involved in the ulnar deviation of the hand at the wrist?
Which muscle is involved in the ulnar deviation of the hand at the wrist?
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Which muscle assists in both pronation and supination of the forearm?
Which muscle assists in both pronation and supination of the forearm?
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Which muscle is innervated by the dorsal scapular nerve?
Which muscle is innervated by the dorsal scapular nerve?
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Study Notes
Arm Movement
- The teres minor muscle is involved in the lateral rotation of the arm.
- The deltoid muscle is responsible for the abduction of the arm.
Scapular Movement
- The levator scapulae muscle is responsible for the elevation of the scapula.
- The serratus anterior muscle assists in scapular protraction from a retracted position.
Neck Movement
- The scalene muscles are involved in the lateral flexion of the neck.
Finger Movement
- The extensor digitorum communis muscle is responsible for the extension of fingers #2-5 at the meta-carpo-phalangeal (MCP), proximal inter-phalangeal (PIP), and distal inter-phalangeal (DIP) joints.
Muscle Innervation
- The radial nerve innervates the Extensor Carpi radialis longus muscle.
- The ulnar nerve innervates the Flexor carpi ulnaris muscle, which is involved in the ulnar deviation of the hand at the wrist.
- The dorsal scapular nerve innervates the levator scapulae muscle.
Forearm Movement
- The pronator teres muscle assists in both pronation and supination of the forearm.
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Description
Test your knowledge of the upper fiber muscles of the body and their specific functions. This quiz covers the origins, insertions, actions, and innervations of muscles such as the upper trapezius and sternocleidomastoid.
