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| Between 1st and second toe |
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| Finger abduction or "fanning" is innervated by the T1 nerve root via the ulnar nerve. |
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| Elbow injury causes what nerve damage? |
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Thumb opposition is innervated by the C8 and T1 nerve roots via the median nerve.
Finger flexion is innervated by the C8 nerve root via the median nerve. |
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Wrist disclocation
supracondylar fx |
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The triceps muscle is innervated by the C6 and C7 nerve roots via the radial nerve
The wrist extensors are innervated by C6 and C7 nerve roots via the radial nerve. The radial nerve is the "great extensor" of the arm: it innervates all the extensor muscles in the upper and lower arm. |
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| The biceps muscle is innervated by the C5 and C6 nerve roots via the musculocutaneous nerve. |
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| Axillary nerve (c5and 6) motor |
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Starting with the deltoids, ask the patient to raise both their arms in front of them simultaneously as strongly as then can while the examiner provides resistance to this movement. Compare the strength of each arm.
The deltoid muscle is innervated by the C5 nerve root via the axillary nerve. |
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| L5 and S1 - motor sciatic tibial nerve |
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Knee flexors
Long head by tibial nerve; short head by common peroneal nerve |
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| Ankle and big toe dorsiflexors (tibiialis anterior and extensr hallucis longis |
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| Ankle plantar flexors (gastronemius, soleus) |
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| Post hip dislocation causes what nerve damage? |
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| Anterior shoulder dislocation C |
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| Axillary nerve compression C 5-6 compromising deltoid muscle |
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| Pubic rami fractures sens and motor injury |
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femoral nerve
knee extention
sens over ant knee
Knee extension by the quadriceps muscle is innervated by the L3 and L4 nerve roots via the femoral nerve |
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| Obdurator ring fracture motor and sens |
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Obdurator nerve
Hip adductuion
sens of medial thigh
Adduction of the hip is mediated by the L2, L3 and L4 nerve roots. |
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| Knee dislocation motor and sens |
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Posterior tibial nerve
toe flexion
sens sole of foot |
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Fibular neck fracture
knee dislocation motor and sens |
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Superficial peroneal
toe ankle eversion
sens lateral dorsum of foot |
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| Fibula neck fracture common cause of compartment syndrome and what nerve damage? |
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deep peroneal
ankle eversion
sens over 1st and 2d web space
Ankle dorsiflexion is innervated by the L4 and L5 nerve roots via the peroneal nerve. |
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| Posterior hip dislocation causes what nerve damage? |
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Sciatic nerve
sens foot
plantar flexion
Ankle plantar flexion is innervated by the S1 and S2 nerve roots via the tibial nerve. |
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| Acetabular fractures cause what nerve damage? |
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Hip abduction
HIP EXTENSION
Inf and sup gluteal muscle |
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| fibula neck fracture causes what nerve damage? |
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| The superficial and deep peroneal nerves can be injured in patients with a fibular neck fracture. The superficial peroneal nerve controls ankle eversion and sensation over the lateral dorsum of the foot (S1 distribution). The deep peroneal nerve controls ankle and toe dorsiflexion and sensation over the dorsal 1st and 2nd web spaces. The posterior tibial nerve can become injured during knee dislocations and provides motor innervation for toe flexion and sensation to the sole of the foot. |
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| Deep peroneal nerve (L4, L5, S1). |
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