Nerves Flashcards
What is the root value of Median nerve and which muscles group does it supply?
What is the course of this nerve?
arises by two roots, one from the lateral cord C5,6,7 and one from the medial cord C8,T1 of the Brachial plexus
Muscles: The median nerve provides motor function to most all of the flexor and pronator muscles of the forearm...
Pronator teres
Flexor carpi radialis
[Flexor carpi sublimis]
Anterior interosseous (motor)
Flexor pollicis longus
Flexor digitorum profundus to 2nd & 3rd fingers
Pronator quadratus
There is the Anterior interoseous nerve which is the deep branch of the median nerve - supplies different muscles:
Abductor pollicis brevis
Opponens pollicis
Lumbricals: 1st & 2nd
± Flexor pollicis brevis (also innervated by ulnar nerve)
What is the root value of Common Peroneal nerve. Name the two branches?
What is the course of this nerve?
root value L 4, 5 S1,2
Muscles:
short head of the biceps femoris muscle
Superficial fibular nerve: Innervates the muscles of the lateral compartment of the leg; fibularis longus and brevis. These muscles act to evert the foot.[6]
Deep fibular nerve: Innervates the muscles of the anterior compartment of the leg; tibialis anterior, extensor digitorum longus and extensor hallucis longus. These muscles act to
What is the root value of Superficial & Deep Peroneal nerve and which muscles group does it supply?
What is the course of this nerve?
both begin as part of the common peroneal nerve..root value L 4, 5 S1,2
Superficial fibular nerve: peroneous longus and brevis [lateral compartment of the leg]
Deep fibular nerve: tibialis anterior, extensor digitorum longus and extensor hallucis longus [ anterior compartment of the leg]
What is the root value of Tibial nerve and which muscles group does it supply?
What is the course of this nerve?
Tibial nerve - root value L4, 5 S1, 2, 3
gastrocnemius, soleus, plantaris and popliteus muscle
The popliteus branch goes on to supply tibialis posterior muscle,
Posterior branches of the tibial nerve supply tibialis posterior, flexor digitorum longus, flexor hallucis longus, and deep part of soleus
What is the root value of Sciatic nerve? Name the branches?
What is the course of this nerve?
Sciatic nerve - root value L 4, 5 S1,2 ,3
Hamstrings
Biceps femoris
Semitendinosus
Semimembranosus
Adductor magnus
Indirectly innervates (via common peroneal and tibial nerves) the muscles of the leg and foot.
What is the root value of Axillary nerve and which muscles group does it supply?
What is the course of this nerve?
the posterior cord of the brachial plexus root value C5,6
Muscles:
deltoid, teres minor
What is the root value of Radial nerve and which muscles group does it supply?
What is the course of this nerve?
the posterior cord of the brachial plexus root value C5,6,7,8,T1
Muscles:
Triceps (all 3 heads)
Anconeus
Brachialis (lateral third)
Extensor carpi radialis longus
Deep branch
Supinator
Extensor carpi radialis brevis
Extensor digitorum
Extensor carpi ulnaris
Extensor pollicis longus
Extensor pollicis brevis
Extensor indicis
Abductor pollicis longus
What is the root value of Ulnar nerve and which muscles group does it supply?
What is the course of this nerve?
arises from the medial cord of the brachial plexus C8,T1
Muscles:
flexor carpi ulnaris, flexor digitorum profundus, lumbrical muscles, opponens digiti minimi, flexor digiti minimi, abductor digiti minimi, interossei, adductor pollicis
What is the root value of Musculocutaneous nerve and which muscles group does it supply? What is the course of this nerve?
arises from the lateral cord of the brachial plexus root value C5,6,7
Muscles:
Corocobrachialis
Brachialis ( also has supply from Radial nerve)
Biceps Brachii(both long head and short head)
What is the course of xyz nerve?
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