Neurological Screen
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Top Contributors - Naomi O'Reilly and Jess Bell
Introduction[edit | edit source]
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Reflexes[edit | edit source]
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Sensation[edit | edit source]
Dermatomes[edit | edit source]
Dermatomes are areas of the skin whose sensory distribution is innervated by a specific nerve root. Assessment of dermatomes involves bilateral comparison of light touch discrimination. During dermatome testing the examiner should alter or remove the pressure applied to one side to determine whether the patient can distinguish changes in pressure.
Myotomes[edit | edit source]
Myotomes represent a group of muscles that are innervated from a single specific nerve root. Essentially, myotomes are the motor equivalent to dermatomes. Myotomes may be assessed for various muscle groups of the upper and lower extremities. Myotome testing is performed through sustained isometric contraction of a specific muscle. Common muscles tested during myotome assessment are listed below.
| Nerve Root | Upper Limb Movement | Nerve Root | Lower Limb Movement |
|---|---|---|---|
| C5 | Shoulder Abduction | L2 | Hip Flexion |
| C6 | Elbow Flexion | L3 | Knee Extension |
| C7 | Elbow Extension | L4 | Ankle Dorsiflexion |
| C8 | Thumb Extension | L5 | Big Toe Extension |
| T1 | Finger Abduction | S1 | Ankle Plantarflexion |
Resources[edit | edit source]
References [edit | edit source]
