Session 4 - Anterior muscles of the forearm Flashcards
What is A?
Protonator Teres
What is the innervation of A?
The median nerve
What are the roots of the median nerve?
C5 - T1
What is the action of the protonator teres? What label does it correspond to on the diagram?
Pronates the forearm A
Where does protanator teres attach?
Medial epicondyle of the humerus
What is D?
Flexor Carpi Radialis
What is the Flexor Carpi Radialis innervated by?
The medial nerve
Which label is the flexor carpi radialis?
D
What movement is the flexi carpi radialis responsible for?
Flexion and abduction at the wrist
Where does D originate?
Medial epicondyle of the humerus
What is C?
Palmaris longus
What does D attach to?
Base of metacarpals 2 and 3
What is the palmaris longus innervated by?
Median nerve
What movement is the palmaris longus responsible for?
Flexion at the wrist
Where does C attach?
The flexor retinaculum of the wrist
What is B?
Flexor Carpi Ulnaris
What does B attach to?
The pisiform carpal bone
What actions is the flexor carpi ulnaris responsible for?
Flexion and adduction at the wrist
What is B innervated by?
Ulnar nerve
What is E?
Medial epicondyle
Name ABCDE and F
A - Protanator Teres B - Brachioradialis C - Flexor Carpi Radialis D - Palma Longus E - Flexor Digitalis F -Flexor Carpi Ulnaris
What is G?
Median Nerve
What muscle is highlighted blue?
Flexor digortorum superficialis
What are the actions of the flexor digortorum superficialis?
Flexes the metacarpophalangeal joints and proximal interphalangeal joints at the 4 fingers, and flexes at the wrist.
What innervates the muscle in blue? What IS the blue muscle?
Median nerve. Flexor digortorum superficialis
What are the three muscles deep to the wrist?
flexor digitorum profundus flexor pollicis longus pronator quadratus
What is A?
Flexor pollicis longus
What is B?
Pronator Quadratus
What is C?
Flexor Digitorum Profundus
What is the function of C?
It is the only muscle that can flex the distal interphalangeal joints of the fingers. It also flexes at metacarpophalangeal joints and at the wrist
Where does C originate? What is C called?
ulna and associated interosseous membrane
What does B do? What is the name of B?
Pronates the forearm Pronator Quadratus
What is the pronator quadratus innervated by?
Median Nerve
What is C innervated by?
The medial half (acts on the little and ring fingers) is innervated by the ulnar nerve. The lateral half (acts on the middle and index fingers) is innervated by the medial nerve
What is A? What is the function of A?
Flexes the interphalangeal joint and metacarpophalangeal joint of the thumb Flexor Pollicis Longus
What is A innervated by?
Median nerve
