Gross Anatomy I Lecture - Deep anterior forearm muscles

what are the origins of the flexor digitorum profundus?

1. shaft/ulna

2. interosseous membrane

what are the insertions of the flexor digitorum profundus?

distal phalanges of digits 2-5

what actions does the flexor digitorum profundus carry out?

1. flexes DIP joints of digits 2-5

2. helps flex hand

what is the innervation of the flexor digitorum profundus?

ulnar nerve and median nerve

what are the origins of the flexor pollicis longus?

1. shaft/radius

2. interosseous membrane

what is the insertion of the flexor pollicis longus?

distal phalanx/digit 1

what action does the flexor pollicis longus carry out?

flexes the thumb (digit 1) at the IP joint

what is innervation of the flexor pollicis longus?

median nerve

what is the origin of the pronator quadratus?

distial aneterior shaft/ulna

what is the insertion of the pronator quadratus?

distal anterior shaft/radius

what actions does the pronator quadratus carry out?

1. pronation of the forearm at the inferior radio-ulnar joint

2. helps stabilize the inferior radio-ulnar joint

what is the innervation of the pronator quadratus?

median nerve