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Cervical plexus

PREPARED BY

ZIAULLAH

What is cervical plexus? 9/14/ The cervical plexus is a network of nerve fibers that supplies innervation to some of the structures in the neck and trunk. It is located in the posterior triangle of the neck, halfway up the sternocleidomastoid muscle, and within the prevertebral layer of cervical fascia. The plexus is formed by the anterior rami (divisions) of cervical spinal nerves C1-C4. 2

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Spinal nerves

The spinal nerves C1 – C4 form the

basis of the cervical plexus.

At each vertebral level, paired

spinal nerves leave the spinal cord

via the intervertebral foramina of

the vertebral column.

Each nerve then divides into

anterior and posterior nerve fibres.

DAIGRAM

Branches of the cervical Plexus 9/14/2025 8 The cervical plexus gives rise to numerous branches which supply structures in the head and neck. They can broadly be divided into two groups – muscular branches and sensory branches.

Clinical Relevance Block A cervical plexus block is used to provide regional anaesthesia, usually for surgery in the neck region The anaesthetist inserts the needle containing the local anaesthetic, midway up the posterior border of the sternocleidomastoid (the nerve point of the neck).

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REFERENCES

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