Wrist and hand - muscles (flexors of the wrist and digits)

Question 1

What formation do the ‘flexor football team’ play in?

Answer 1

2-1-3 - 2 deep layer flexors, 1 intermediate layer flexor, and 3 superficial layer flexors

Question 2

What are the 2 deep layer flexors?

Answer 2

Flexor pollucis longus
Flexor digitorum profundus

Question 3

What is the Function, Origin and Insertion of the Flexor pollucis longus muscle?

Answer 3

o Function – Flexes thumb
o Origin – Anterior radius
o Insertion – Distal phalanx thumb

Question 4

What is the Function, Origin and Insertion of the Flexor digitorum profundus muscle?

Answer 4

o Function – Flexes fingers
o Origin – Ulna
o Insertion – Distal phalanges of fingers

Question 5

What is the intermediate layer flexor?

Answer 5

Flexor digitorum superficialis

Question 6

What is the Function, Origin and Insertion of the Flexor digitorum superficialis muscle?

Answer 6

o Function – Flexes fingers, not distal IP joint
o Origin – Medial epicondyle
o Insertion – Middle phalanges of fingers

Question 7

What is the common flexor tendon that superficial and intermediate flexors originate from?

Answer 7

Medial epicondyle

Question 8

What are the 3 superficial layer flexors?

Answer 8

Flexor carpi radialis
Palmaris longus
Flexor carpi ulnaris

Question 9

What is the Function, Origin and Insertion of the Flexor carpi radialis muscle?

Answer 9

o Function – Flexes wrist, radial deviation
o Origin – Medial epicondyle
o Insertion – Base metacarpal II

Question 10

What is the Function, Origin and Insertion of the Palmaris longus muscle?

Answer 10

o Function – Weak wrist flexor, anchor for skin & fascia of hand
o Origin – Medial epicondyle
o Insertion – Palmar fascia

Question 11

What is the Function, Origin and Insertion of the Flexor carpi ulnaris muscle?

Answer 11

o Function – Flexes wrist, ulnar deviation
o Origin – Medial epicondyle
o Insertion – Metacarpal V (also pisiform & hamate)