Podcast
Questions and Answers
What is the primary action of the flexor carpi ulnaris at the wrist?
What is the primary action of the flexor carpi ulnaris at the wrist?
- Extension and adduction
- Flexion and abduction
- Flexion and adduction (correct)
- Extension and abduction
Which origin does the humeral head of the flexor carpi ulnaris share with other muscles?
Which origin does the humeral head of the flexor carpi ulnaris share with other muscles?
- Medial epicondyle of the humerus (correct)
- Olecranon of the ulna
- Coronoid process of the ulna
- Lateral epicondyle of the humerus
Which muscle has its attachments splitting into four tendons at the wrist?
Which muscle has its attachments splitting into four tendons at the wrist?
- Flexor carpi radialis
- Palmaris longus
- Flexor carpi ulnaris
- Flexor digitorum superficialis (correct)
What is the attachment point of the flexor carpi ulnaris tendon?
What is the attachment point of the flexor carpi ulnaris tendon?
Which of the following actions does the pronator teres perform?
Which of the following actions does the pronator teres perform?
Flashcards
Flexor Carpi Ulnaris origin
Flexor Carpi Ulnaris origin
The muscle has two origins: one from the medial epicondyle of the humerus and the other from the olecranon process of the ulna.
Flexor Carpi Ulnaris action
Flexor Carpi Ulnaris action
Flexes and adducts the wrist.
Palmaris Longus action
Palmaris Longus action
Flexes the wrist.
Flexor Carpi Radialis action
Flexor Carpi Radialis action
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Pronator Teres action
Pronator Teres action
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Study Notes
Forearm Flexor Muscles
-
Flexor Carpi Ulnaris:
- Two origins: medial epicondyle of humerus (with other superficial flexors) and olecranon of ulna.
- Attaches to: pisiform bone, hook of hamate, and base of 5th metacarpal.
- Actions: wrist flexion and adduction.
-
Palmaris Longus:
- Origin: medial epicondyle.
- Attachment: flexor retinaculum of the wrist.
- Action: wrist flexion.
-
Flexor Carpi Radialis:
- Origin: medial epicondyle.
- Attachment: base of metacarpals II and III.
- Action: wrist flexion and abduction.
-
Pronator Teres:
- Two origins: medial epicondyle and coronoid process of ulna.
- Attachment: mid-shaft of radius.
- Action: forearm pronation.
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Flexor Digitorum Superficialis:
- Two origins: medial epicondyle of humerus and radius.
- Splits into four tendons at the wrist, attaching to the base of middle phalanges of digits 2-5
- Actions: flexes metacarpophalangeal and proximal interphalangeal joints of digits 2-5, and wrist flexion.
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Description
Test your knowledge on the anatomy of the forearm flexor muscles. This quiz covers origins, attachments, and actions of key muscles such as Flexor Carpi Ulnaris and Flexor Digitorum Superficialis. Ideal for students studying human anatomy and physiology.
