Foundational Sciences Flashcards
What muscles does the Musculocutaneous nerve innervate?
- Coracobrachialis
- Biceps brachii
- Brachialis
Musculocutaneous nerve SC segment
C5, C6
What’s the sensory distribution of the Musculocutaneous nerve?
Anterolateral surface of forearm
If you we’re to damage the Musculocutaneous nerve, how would the pt present?
- Loss of forearm flexion when supinated
- Weakened supination
- No sensation along anterolateral forearm
What’s the SC segment of the Axillary nerve?
C5, C6
What’s the SC segment of the Radial nerve?
C5, C6, C7, C8, T1
What’s the SC segment of the Median nerve?
C6, C7, C8, T1
What’s the SC segment of the Ulnar nerve?
C7, C8, T1
What’s the SC segment of the Sciatic nerve?
L4-S3
What’s the SC segment of the Femoral nerve?
L2, L3, L4
What’s the SC segment of the Tibial nerve?
L4-S3
What’s the SC segment of the Superficial Fibular (peroneal) nerve?
L5-S2
What’s the SC segment of the Deep Fibular (peroneal) nerve?
L4-S2
What muscles are innervated by the Axillary nerve?
- Deltoid
2. Teres minor
What muscles are innervated by the Radial nerve?
- Triceps
- Anconeus
- Brachioradialis
- Supinator
- Wrist/Finger/Thumb EXTENSORS
What muscles are innervated by the Median nerve?
- Pronators
- Wrist/Finger flexors on radial side
- Most thumb muscles
What muscles are innervated by the Ulnar nerve?
- Flexor Carpi Ulnaris (FCU)
- Flexor Digitorum Profundus (medial half) (FDP)
- Interossei
- 4/5th Lumbricals
What muscles are innervated by the Sciatic nerve?
- Hamstrings
2. Adductor Magnus
What muscles are innervated by the Femoral nerve?
- Sartorius
- Quadriceps
- Iliacus
- Pectineus
What muscles are innervated by the Tibial nerve?
- Gastrocnemius
- Soleus
- Plantaris
- Popliteus
- Tibialis Posterior
What muscles are innervated by the Superficial Fibular nerve?
- Fibularis Longis
2. Fibularis Brevis
What muscles are innervated by the Deep Fibular nerve?
- Tibialis Anterior
- Extensor Hallucis Longus
- Extensor Hallucis Brevis
- Extensor Digitorum Longus
- Extensor Digitorum Brevis
- Fibularis Tertius
- 1/2nd Dorsal Interossei
What is the sensory distribution of the Axillary nerve?
Lateral arm over lower portion of deltoid
What is the sensory distribution of the Radial nerve?
Posterior arm, posterior forearm, and radial side of posterior hand