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{{Infobox Nerve |
{{Infobox Nerve |
Name = Cervical plexus |
Name = Cervical plexus |
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The '''cervical plexus''' is a [[plexus]] of the [[anterior rami ]] of the first four [[cervical spinal nerve]]s which arise from C1 to C4 cervical segment in the [[neck]]. They are located laterally to the transverse processes between prevertebral muscles from the medial side and vertebral (m. [[Scalene muscles|scalenus]], m. [[levator scapulae]], m. [[splenius cervicis]]) from lateral side. There is anastomosis with [[accessory nerve]], [[hypoglossal nerve]] and [[sympathetic trunk]].
The '''cervical plexus''' is a [[plexus]] of the [[anterior rami]] of the first four [[cervical spinal nerve]]s which arise from C1 to C4 cervical segment in the [[neck]]. They are located laterally to the transverse processes between prevertebral muscles from the medial side and vertebral (m. [[Scalene muscles|scalenus]], m. [[levator scapulae]], m. [[splenius cervicis]]) from lateral side. There is anastomosis with [[accessory nerve]], [[hypoglossal nerve]] and [[sympathetic trunk]].


It is located in the [[neck]], deep to [[sternocleidomastoid]] m. Nerves formed from the cervical plexus innervate the back of the [[head]], as well as some neck muscles. The branches of the cervical plexus emerge from the [[posterior triangle]] at the [[Erb's point (neurology)|nerve point]], a point which lies midway on the posterior border of the sternocleidomastoid.
It is located in the [[neck]], deep to [[sternocleidomastoid]] m. Nerves formed from the cervical plexus innervate the back of the [[head]], as well as some neck muscles. The branches of the cervical plexus emerge from the [[posterior triangle]] at the [[Erb's point (neurology)|nerve point]], a point which lies midway on the posterior border of the sternocleidomastoid.
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**[[Transverse cervical nerve]] - innervates anterior region of neck (C2&C3)
**[[Transverse cervical nerve]] - innervates anterior region of neck (C2&C3)
**[[Lesser occipital]] - innervates the skin and the scalp posterosuperior to the auricle (C2)
**[[Lesser occipital]] - innervates the skin and the scalp posterosuperior to the auricle (C2)
**[[Supraclavicular nerves]] - innervate the skin above and below the clavicle (C3,C4) <ref>Clinically Oriented Anatomy by Moore and Dally's </ref>
**[[Supraclavicular nerves]] - innervate the skin above and below the clavicle (C3,C4) <ref>Clinically Oriented Anatomy by Moore and Dally's</ref>
*Muscular
*Muscular
**[[Ansa cervicalis]] (loop formed from C1-C3), etc. ([[geniohyoid]] (C1 only), [[thyrohyoid]] (C1 only), [[sternothyroid]], [[sternohyoid]], [[omohyoid]])
**[[Ansa cervicalis]] (loop formed from C1-C3), etc. ([[geniohyoid]] (C1 only), [[thyrohyoid]] (C1 only), [[sternothyroid]], [[sternohyoid]], [[omohyoid]])
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{{Spinal nerves}}
{{Spinal nerves}}
{{Cervical plexus}}
{{Cervical plexus}}
{{Authority control}}


[[Category:Nerve plexus]]
[[Category:Nerve plexus]]

Revision as of 00:10, 27 November 2018

Cervical plexus
Dermatome distribution of the trigeminal nerve (Superficial cervical plexus visible in purple, at center bottom.)
Details
FromC1-C4
Identifiers
Latinplexus cervicalis
MeSHD002572
TA98A14.2.02.012
TA26374
FMA5904
Anatomical terms of neuroanatomy

The cervical plexus is a plexus of the anterior rami of the first four cervical spinal nerves which arise from C1 to C4 cervical segment in the neck. They are located laterally to the transverse processes between prevertebral muscles from the medial side and vertebral (m. scalenus, m. levator scapulae, m. splenius cervicis) from lateral side. There is anastomosis with accessory nerve, hypoglossal nerve and sympathetic trunk.

It is located in the neck, deep to sternocleidomastoid m. Nerves formed from the cervical plexus innervate the back of the head, as well as some neck muscles. The branches of the cervical plexus emerge from the posterior triangle at the nerve point, a point which lies midway on the posterior border of the sternocleidomastoid. Also from the posterior ramus of C2 greater occipital nerve arises

Branches

The cervical plexus has two types of branches: cutaneous and muscular.

Additionally there are two branches formed by the posterior roots of spinal nerves:

Diagram

Additional images

  • Plan of the cervical plexus.
    Plan of the cervical plexus.
  • The nerves of the scalp, face, and side of neck.
    The nerves of the scalp, face, and side of neck.
  • The right sympathetic chain and its connections with the thoracic, abdominal, and pelvic plexuses.
    The right sympathetic chain and its connections with the thoracic, abdominal, and pelvic plexuses.
  • Side of neck, showing chief surface markings.
    Side of neck, showing chief surface markings.

See also

References

  1. ^ Clinically Oriented Anatomy by Moore and Dally's
  2. ^ Robert Schwartzman (15 April 2008). Neurologic Examination. John Wiley & Sons. p. 58. ISBN 978-1-4051-7283-7.
  3. ^ a b R.J. Schwartzman (31 July 2006). Differential Diagnosis in Neurology. IOS Press. pp. 326–. ISBN 978-1-60750-179-4.
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