Forearm Flashcards
How many layers of muscles are present in the anterior forearm?
3 (superficial, intermediate, deep)
What are the muscles of the superficial layer (4)?
- Pronator teres
- Flexor capri radialis
- Flexor capri ulnaris
- Palmaris Longus
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What are the superficial muscles of the forearm innervated by? (2)
- Mostly median nerve
- EXCEPT flexor capri ulnaris which is ulnar nerve
What muscle is present in the anterior intermediate forearm layer?
Flexor digitorum superficialis
Which muscles are present in the deep layer of the anterior forearm? (3)
- Flexor pollicis longus
- Flexor digitorum profundus
- Pronator quadratus
Medial half of flexor superficialis is innervated by which nerve?
Ulnar nerve
Deep layer of anterior forearm muscles are all innervated by which nerve?
Median nerve
What are the main actions of the anterior compartment of the forearm?
Flexion of wrist & digits, pronation, abduction and adduction of the wrist
Forearm posterior compartment muscles (superficial layer)? (7)
- Brachioradialis
- Extensor capri radialis longus
- Extensor capri radialis brevis
- Anconeus
- Extensor digitorum
- Extensor capri ulnaris
- Extensor digiti minimi
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Brachioradialis is AKA the…
Beer drinking muscle
Anconeus is AKA the….
Boring muscle
What are the deep layer muscles of the posterior compartment of the forearm? (5)
- Supinator
- Abductor pollicis longus
- Extensor Pollicus longus
- Extensor Pollicis brevis
- Extensor Indicis
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What muscles innervate the posterior compartment of the forearm?
Radial nerve
What’s the main actions of the posterior compartment of the forearm (3)
- Extension of wrist and digits
- Supination
- Abduction & adduction of the wrist
