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With a dorsal root (sensory) with primarily afferent nerve fibres, a Ventral root (motor) with primarily efferent nerve fibres And dorsal root ganglion, which has the cell bodies of sensory nerve receptors (found in the peripheral limb - muscles, jts, skin, organs, etc)

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How is a spinal nerve formed?

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Upper Quadrant Neurovascular Anatomy - Leaderboard

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Upper Quadrant Neurovascular Anatomy - Details

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1) Chapter 1 View

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5 questions

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How is a spinal nerve formed?

C4 - Trapezius - (sh elevation (shrug)) C5 - Biceps Brachii, middle deltoid (Elbow flxn, sh abdn) C6 - Extensor carpi radialis longus ( wrist extension w/ radial deviation) C7 - Tricpes brachii, Extensor digitorum (elbow ext, finger ext) C8 - Flexor digitorum profundus - Fingle flxn (distal IP jts) T1 - Dorsal and palmar interossei (finger abd, and addn)

Describe the tests required for a C4, 5, 6, 7, 8, T1 nerve root. Muscle test + action.

C5, c6 - Biceps brachii C6, c5 - Brachioradialis tendon C7, c6 - Triceps tendon

C5,6, 7, 8, 1 reflex tests

C1/2 transverse processes Rectus capitis anterior (C1) Middle scalene (C2) Obliquus capitis superior + inferior (C1 TP)

Palpable landmarks in anterior triangle of neck, muscles attached here?

- IX Glossopharyngeal (Swallow) - X Vagus (loss of voice, diff speaking, lowers BP, and HR) - XI Accessory (SCM/trap) - XII Hypoglossal (tongue - swallowing - symptom = coughing) Greater occipital nerve (c2) (semispinalis capitis) Phrenic (ventral rami - C3, 4, 5)

Name the upper cx motor nerves/what they do or innervate and identify where they exit from.