Muscoli Flashcards
(29 cards)
What is the origin of the flexor digitorum superficialis muscle?
The origin is the medial epicondyle of the humerus.
What is the primary action of the extensor digitorum muscle?
The primary action is to extend the fingers.
True or False: The opponens pollicis muscle is responsible for thumb opposition.
True
Which muscle originates from the lateral epicondyle of the humerus?
The extensor carpi radialis brevis.
Fill in the blank: The insertion of the flexor digitorum profundus is on the __________ of the distal phalanges.
palmar surface
What is the action of the abductor pollicis brevis muscle?
The action is to abduct the thumb.
Which muscles are responsible for the adduction of the fingers?
The palmar interossei muscles.
What is the origin of the adductor pollicis muscle?
The origin is from the second and third metacarpals.
True or False: The lumbrical muscles are responsible for flexing the fingers at the metacarpophalangeal joints.
True
What is the insertion point of the extensor pollicis longus muscle?
The insertion is at the base of the distal phalanx of the thumb.
Which muscle assists in the extension of the thumb?
The extensor pollicis brevis.
Fill in the blank: The origin of the palmaris longus muscle is the __________.
medial epicondyle of the humerus
What is the primary function of the flexor pollicis longus muscle?
The primary function is to flex the thumb.
Which muscle is responsible for the flexion of the little finger?
The flexor digiti minimi brevis.
True or False: The dorsal interossei muscles are responsible for finger abduction.
True
What is the action of the flexor carpi ulnaris muscle?
The action is to flex and adduct the wrist.
What is the insertion of the extensor indicis muscle?
The insertion is at the extensor expansion of the index finger.
Which muscle originates from the anterior surface of the radius?
The flexor pollicis longus.
Fill in the blank: The insertion of the flexor carpi radialis muscle is on the __________.
base of the second metacarpal
What is the primary action of the extensor carpi ulnaris muscle?
The primary action is to extend and adduct the wrist.
Which muscle is involved in the opposition of the little finger?
The opponens digiti minimi.
True or False: The flexor digitorum profundus muscle has four tendons that insert on the distal phalanges.
True
What is the origin of the extensor pollicis brevis muscle?
The origin is from the posterior surface of the radius.
Which muscle acts to extend the thumb at the carpometacarpal joint?
The abductor pollicis longus.
