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  2. Cervical spinal nerve 8 - Wikipedia

    en.wikipedia.org/wiki/Cervical_spinal_nerve_8

    The cervical spinal nerve 8 (C8) is a spinal nerve of the cervical segment. [1] ... (C5, C6, C7, C8, T1) Pectoralis minor - Medial pectoral nerve (C5, C6, ...

  3. Brachial plexus - Wikipedia

    en.wikipedia.org/wiki/Brachial_plexus

    The brachial plexus is a network of nerves (nerve plexus) formed by the anterior rami of the lower four cervical nerves and first thoracic nerve (C5, C6, C7, C8, and T1).This plexus extends from the spinal cord, through the cervicoaxillary canal in the neck, over the first rib, and into the armpit, it supplies afferent and efferent nerve fibers to the chest, shoulder, arm, forearm, and hand.

  4. Cervical spinal nerve 5 - Wikipedia

    en.wikipedia.org/wiki/Cervical_spinal_nerve_5

    The cervical spinal nerve 5 (C5) is a spinal nerve of the cervical segment. [1]It originates from the spinal column from above the cervical vertebra 5 (C5). It contributes to the phrenic nerve, long thoracic nerve, and dorsal scapular nerve before joining cervical spinal nerve 6 to form the upper trunk, a trunk of the brachial plexus, which then forms the lateral cord, and finally the ...

  5. Cervical vertebrae - Wikipedia

    en.wikipedia.org/wiki/Cervical_vertebrae

    C4 and C5 are the areas that see the highest amount of cervical spine trauma. [ 8 ] If it does occur, however, it may cause death or profound disability, including paralysis of the arms, legs, and diaphragm , which leads to respiratory failure .

  6. Cervical spinal nerve 4 - Wikipedia

    en.wikipedia.org/wiki/Cervical_spinal_nerve_4

    Cervical spinal nerve 4, also called C4, is a spinal nerve of the cervical segment. It originates from the spinal cord above the 4th cervical vertebra (C4). It contributes nerve fibers to the phrenic nerve , the motor nerve to the thoracoabdominal diaphragm .

  7. Spinal nerve - Wikipedia

    en.wikipedia.org/wiki/Spinal_nerve

    C3, C4, C5: Supply diaphragm (mostly C4) C5, C6: Move shoulder, raise arm ; flex elbow C6: externally rotate the arm C6, C7: Extend elbow and wrist (triceps and wrist extensors); pronate wrist C7, C8: Flex wrist; supply small muscles of the hand: T1–T6: Intercostals and trunk above the waist: T7–L1: Abdominal muscles L1–L4: Flex hip joint

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