Lecture 3 - Spinal Nerves Flashcards

1
Q

What are you assessing when testing each spinal nerve segment?

A

Sensory function (dermatomes), motor function (myotomes) and both simultaneously (spinal cord reflexes)

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2
Q

If there is a lesion on the anterior root, what is affected for that specific spinal nerve?

A

Motor function

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3
Q

Which dermatome supplies the medial malleolus?

A

L4

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4
Q

Which dermatome supplies the middle finger?

A

C7

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5
Q

Which dermatome supplies the pubic symphysis?

A

T12

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6
Q

What are the spinal nerve root levels of the femoral nerve?

A

L2, L3 & L4

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7
Q

Where would you find the nerve point of the neck?

A

Superior to the midpoint of the posterior border of the SCM

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8
Q

Name the 4 anterolateral sensory branches of the cervical plexus, along with their nerve roots

A

Lesser occipital (C2), great auricular nerve (C2, C3), transverse cervical (C2, C3) and supraclavicular nerves (C3, C4)

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9
Q

When examining the myotomes supplied by the brachial plexus, what areas of the body are you assessing?

A

Muscles of the upper limb and extrinsic back muscles

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10
Q

If I was to examine the postural back muscles, from which spinal levels are the involved myotomes supplied?

A

T2-L3

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11
Q

When testing shoulder abduction, which muscle and spinal nerve are involved?

A

Deltoid; C5

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12
Q

When testing flexion of the finger joints, which muscles and spinal nerve are involved?

A

Digit flexors; C8

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13
Q

When testing extension of the elbow joint, which muscle and spinal nerve are involved?

A

Triceps brachii; C7, C8

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14
Q

When testing flexion of the wrist joint, which muscles and spinal nerve are involved?

A

Carpal flexors; C6, C7

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15
Q

When testing flexion of the hip joint, which muscle and spinal nerves are involved?

A

Psoas major; L2, L3

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16
Q

When testing extension of the knee joint, which muscle and spinal nerves are involved?

A

Quadriceps; L3, L4

17
Q

When testing dorsiflexion of the ankle joint, which muscle and spinal nerves are involved?

A

Tibialis anterior; L4, L5

18
Q

When testing inversion of the ankle joint, which muscles and spinal nerve are involved?

A

Tibialis anterior & posterior; L4

19
Q

What is a reflex?

A

An involuntary response to stimulus

20
Q

Name all 5 reflexes you would test for, along with their spinal nerve

A

Supinator/brachioradialis (C6), biceps (C5, C6), triceps (C7), knee (C7) and ankle (S1)