Nerve Roots and Peripheral Nerves Flashcards
What does the spinal accessory nerve innervate?
SCM
Trapezius
Supraspinatus and Infraspinatus are innervated by which muscle?
Suprascapular nerve C5-C6
The long thoracic nerve innervated which muscle?
Serratus anterior
From what nerve root(s) does the long thoracic nerve originate?
C5-C7
What muscles does the Musculocutaneous nerve (C5-C6) innervate?
Coracobrachialis
Brachialis
Biceps brachii
From which nerve root(s) does the nerve that innervates the biceps brachii originate?
Musculocutaneous C5-C6
What nerve innervates the Teres Minor and Deltoid?
Axillary nerve (C5-C6)
From which nerve root(s) does the axillary nerve originate?
C5-C6
What muscles does the Radial nerve innervate?
Rudolph is a BEAST
Brachioradialis
Extensors
Anconeus
Supinator
Triceps
What muscles does the Median nerve innervate?
1/2 LOAF PP or MeaT LOAF
Lumbricals 1-2
Opponens pollicis
Abductor pollicis brevis
Flexors (minus FCU and 1/2 FDP)
PP: Pronator teres and palmaris longus
From what nerve root(s) does the radial nerve originate?
C6-T1
From which nerve root(s) does the median nerve originate?
C5-T1
What muscles does the Ulnar nerve innervate?
MAFIA
Medial lumbricals
Adductor pollicis
Flexor carpi ulnaris and medial part of FDP
Interossei (dorsal)
Abductor digiti minimi
From which nerve root(s) does the Ulnar nerve originate?
C8-T1
Erb’s palsy is a (upper/lower) brachial plexus injury.
Upper (C5-C6)
Klumpke’s Palsy is a (upper/lower) brachial plexus injury.
Lower (C7-T1)
What type of brachial plexus injury leads to a claw hand deformity?
Klumpke’s palsy (C7-T1)
What type of brachial plexus injury leads to a waiter’s tip deformity?
Erb’s palsy (C5-C6)
What muscles does the femoral nerve innervate?
F-QuIPS
Femoral Nerve
Quadratus
Iliopsoas
Pectineus
Sartorius
From which nerve root(s) does the femoral nerve originate?
L2-L4
The saphenous nerve is a branch off of what nerve?
Femoral
What is the sensory distribution of the saphenous nerve?
Medial aspect of lower leg
What does the Obturator nerve innervate?
Adductor longus/brevis, Obturator externus
The superior gluteal nerve innervates which muscles?
Gluteus medius
Gluteus minimus
TFL
Inferior gluteal nerve innervates which muscles?
Gluteus maximus
From which nerve root(s) does the superior gluteal nerve originate?
L4-S1
From which nerve root(s) does the inferior gluteal nerve originate?
L5-S2
What does the Tibial nerve innervate?
Plantar Flexors!
Gastrocnemius
Soleus
Popliteus
Tibialis Posterior
FDL
FHL
From what nerve roots does the tibial nerve originate?
L4-S3
The common peroneal nerve branches off into which two nerves?
Superficial Peroneal (Eversion)
Deep peroneal (DF)
What muscles does the superficial peroneal nerve innervate?
Evertors!
Fibularis longus
Fibularis brevis
What muscles does the deep peroneal nerve innervate?
Dorsiflexors
Tibialis anterior
EDL
EHL
What is the sensory distribution of the superficial peroneal nerve?
lower leg and dorsum of foot
What is the sensory distribution of the sural nerve (sensory branch of tibial)?
Posterolateral lower leg and lateral foot
What is the sensory distribution of the deep peroneal nerve?
1st webspace of foot
What nerve does Tarsal Tunnel Syndrome affect?
What muscles will be weak?
Posterior tib nerve
Weak foot intrinsics
