Forearm muscles Flashcards
Brachioradialis
Action
which compartment is it located it
Innervation
Elbow flexion even though it lies in posterior compartment of forearm
Radial nerve
Flexor digitorum superficialis To which digits are these 4 tendons attached Attachment Action [3] Action on distal ITP joints? Innervation
Attached to the medial 4 digits, middle phalanx
Wrist flexion, MCP and proximal ITP joint flexion
Doesn’t act on distal ITP joints
Median nerve
Flexor digitorum profundus
Ulnar nerve supplies…
Median nerve supplies…
Ulnar nerve supplies medial half
Median nerve supplies lateral half
Pronator quadratus
Action
Innervation
Pronates forearm
Anterior interosseous nerve from median nerve
Relationship of brachial artery to median nerve in cubital fossa
The median nerve is medial to the brachial artery in the cubital fossa
Which muscle does median nerve not supply in anterior compartment of forearm
FCU and medial half of FDP
Does the median nerve enter hand by passing below or above flexor retinaculum
What about ulnar nerve and artery
Below
Ulnar artery and nerve pass above flexor retinaculum
Relationship of ulnar nerve and ulnar artery in distal part of forearm
Ulnar nerve medial to ulnar artery in forearm
Contents of carpal tunnel [4]
Median nerve
4 tendons of FDS
4 tendons of FDP
1 tendon of Flexor pollicis longus
What divides the hypothenar and thenar eminences in the palm?
What fascia is continuous with this?
Palmar aponeurosis
Palmaris longus fascia
Posterior forearm muscles
Wrist extensors:
- extensor digitorum
- extensor indicis
- extensor digiti minimi
Wrist extensors and ab/adductors at wrist joint:
ECRL
ECRB
Extensor carpi ulnaris
Name the 2 muscles that extend the thumb
Name 1 forearm muscle that abducts the thumb
Extensor pollicis brevis
Extensor pollicis longus
Abductor pollicis longus
Radial nerve divides into 2 branches in the cubital fossa
Posterior interosseous nerve
Superficial branch of radial nerve
