Podcast
Questions and Answers
What is the primary function of the dorsal digital expansions (extensor hoods)?
What is the primary function of the dorsal digital expansions (extensor hoods)?
- To flex the metacarpophalangeal joints
- To abduct the fingers
- To extend the proximal and distal interphalangeal joints (correct)
- To stabilize the wrist joint
Where does the Extensor Carpi Ulnaris (ECU) muscle originate?
Where does the Extensor Carpi Ulnaris (ECU) muscle originate?
- Posterior border of the ulna
- Olecranon process of the ulna
- Supinator crest of the ulna
- Lateral epicondyle of the humerus (correct)
What is the primary function of the Anconeus muscle?
What is the primary function of the Anconeus muscle?
- To supinate the forearm
- To extend the forearm
- To stabilize the elbow joint (correct)
- To flex the elbow joint
Where does the Supinator muscle originate?
Where does the Supinator muscle originate?
What is the relationship between the Supinator muscle and the deep branch of the radial nerve?
What is the relationship between the Supinator muscle and the deep branch of the radial nerve?
What is the primary function of the interossei and lumbrical muscles in relation to the dorsal digital expansions (extensor hoods)?
What is the primary function of the interossei and lumbrical muscles in relation to the dorsal digital expansions (extensor hoods)?
Which structure converts the anterior concavity of the carpus into a carpal tunnel?
Which structure converts the anterior concavity of the carpus into a carpal tunnel?
Which nerve innervates the muscles of the posterior compartment of the forearm?
Which nerve innervates the muscles of the posterior compartment of the forearm?
What is the primary action of the muscles that cross the wrist in the posterior compartment of the forearm?
What is the primary action of the muscles that cross the wrist in the posterior compartment of the forearm?
What is the primary action of the muscles that cross the digits in the posterior compartment of the forearm?
What is the primary action of the muscles that cross the digits in the posterior compartment of the forearm?
Which layer of the posterior compartment of the forearm contains the supinator muscle?
Which layer of the posterior compartment of the forearm contains the supinator muscle?
What defines the movements of the thumb at right angles to the movements of the other fingers of the hand?
What defines the movements of the thumb at right angles to the movements of the other fingers of the hand?
Which structure forms the Carpal Tunnel by attaching to the sides of the carpal arch?
Which structure forms the Carpal Tunnel by attaching to the sides of the carpal arch?
Which muscle has its origin at the palmar aponeurosis and insertion at the lateral side of the base of the proximal phalanx of the thumb?
Which muscle has its origin at the palmar aponeurosis and insertion at the lateral side of the base of the proximal phalanx of the thumb?
What is the innervation pattern for all of the hypothenar muscles?
What is the innervation pattern for all of the hypothenar muscles?
Which muscle has its origin at the flexor retinaculum and insertion at the 1st metacarpal bone?
Which muscle has its origin at the flexor retinaculum and insertion at the 1st metacarpal bone?
Which nerve passes through the Carpal Tunnel along with nine tendons?
Which nerve passes through the Carpal Tunnel along with nine tendons?
