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Questions and Answers
Which muscle in the anterior compartment of the forearm has an insertion at the middle of the shaft of radius?
Which muscle in the anterior compartment of the forearm has an insertion at the middle of the shaft of radius?
- Palmaris longus
- Flexor carpi ulnaris
- Pronator teres (correct)
- Flexor carpi radialis
Which muscle is a weak flexor of the wrist and is absent in approximately 13% of arms?
Which muscle is a weak flexor of the wrist and is absent in approximately 13% of arms?
- Palmaris longus (correct)
- Flexor carpi ulnaris
- Flexor carpi radialis
- Pronator teres
Which muscle in the anterior compartment of the forearm is a flexor and radial abductor of the wrist?
Which muscle in the anterior compartment of the forearm is a flexor and radial abductor of the wrist?
- Pronator teres
- Palmaris longus
- Flexor carpi radialis (correct)
- Flexor carpi ulnaris
Which muscle has its origin at the medial epicondyle of the humerus and insertion at the base of second and third metacarpals?
Which muscle has its origin at the medial epicondyle of the humerus and insertion at the base of second and third metacarpals?
Which muscle in the anterior compartment of the forearm originates from two heads, one at the medial epicondyle and one at the coronoid process of ulna?
Which muscle in the anterior compartment of the forearm originates from two heads, one at the medial epicondyle and one at the coronoid process of ulna?
Flashcards
Pronator teres
Pronator teres
Pronates forearm, turning palm posteriorly and inserts on the middle of the radius shaft.
Palmaris longus
Palmaris longus
Averages 13% absence; assists wrist flexion and tenses palmar aponeurosis.
Flexor carpi radialis
Flexor carpi radialis
Flexes and radially abducts the wrist; inserts at the base of 2nd and 3rd metacarpals.
Pronator teres origin
Pronator teres origin
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Study Notes
Forearm Muscles
- Flexor digitorum superficialis inserts on the middle of the shaft of radius
- Palmaris longus is absent in approximately 13% of arms
- Flexor carpi radialis is a flexor and radial abductor of the wrist
- Flexor carpi ulnaris originates at the medial epicondyle of the humerus and inserts at the base of the second and third metacarpals
- Flexor digitorum superficialis originates at two heads, one at the medial epicondyle and one at the coronoid process of the ulna
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