What does the cervical plexus do?
What does the cervical plexus do?
The function of the cervical plexus is to provide skeletal muscle control of the neck and upper torso as well as providing cutaneous sensation to parts of the occiput, neck, and shoulder. The greater occipital nerve originates from the second cervical nerve independent of the cervical plexus.
What muscles are innervated by the cervical plexus?
It is located in the neck, deep to the sternocleidomastoid muscle. Nerves formed from the cervical plexus innervate the back of the head, as well as some neck muscles….
| Cervical plexus | |
|---|---|
| Latin | plexus cervicalis |
| MeSH | D002572 |
| TA98 | A14.2.02.012 |
| TA2 | 6374 |
What part of the body does the cervical plexus serve?
neck
The cervical plexus innervates muscles of the neck and areas of skin on the head, neck and chest.
What is a cervical plexus block?
Regional Anesthesia The deep cervical plexus block is a paravertebral block of the C2-C4 nerve roots. The technique involves injecting local anesthetic at the vertebral foramina (transverse processes) of the C2, C3, and C4 vertebra to block neck muscles, fascia, and the greater occipital nerve.
Where is C4 in the spine?
The C4 vertebra is located in the neck region of the spinal column, just above the thoracic vertebrae. It is located in close proximity to the thyroid cartilage.
What nerve is between C3 and C4?
The supraclavicular nerve, of C3 and C4, descends from the posterior sternocleidomastoid and provides sensory information from the skin over the clavicle and shoulder.
What does C1 nerve innervate?
The cervical spinal nerve 1 (C1) is a spinal nerve of the cervical segment. C1 carries predominantly motor fibres, but also a small meningeal branch that supplies sensation to parts of the dura around the foramen magnum (via dorsal rami)….Cervical spinal nerve 1.
| Cervical spinal nerve | |
|---|---|
| FMA | 6440 |
| Anatomical terminology |
What does cervical plexus supply?
The cervical plexus, composed of the anterior rami of C1 to C4 cervical roots, innervates most neck muscles and provides sensory innervation to the anterior and lateral neck.
How nerve plexus is formed?
Nerve plexuses are composed of afferent and efferent fibers that arise from the merging of the anterior rami of spinal nerves and blood vessels. There are five spinal nerve plexuses—except in the thoracic region—as well as other forms of autonomic plexuses, many of which are a part of the enteric nervous system.
¿Qué es el plexo cervical?
El plexo cervical constituye una red de fibras nerviosas formados por las ramificaciones anteriores de las cuatro primeras vértebral cervicales. Estos plexos nerviosos dan lugar a los nervios destinados a los músculos anteriores y a la piel del cuello.
¿Qué es el primer nervio cervical?
El primer nervio cervical, esto es, C1, sale por el agujero intervertebral y da dos ramos, uno anterior y otro posterior. El ramo anterior discurre en sentido inferior. El segundo nervio, C2, también da dos ramos, uno ascendente y otro descendente y se anastomosa (se une) con C1 formando el asa del Atlas.
¿Qué músculos tienen el asa cervical?
El asa cervical actúa sobre los músculos infrahioideos, los cuales deprimen el hueso hioide, una acción fundamental para tragar y hablar. Estos músculos son: Músculo omohioideo.
¿Cuáles son las fibras que activan la flexión cervical?
– Ramas ascendentes: activan los músculos recto anterior menor y el recto lateral de la cabeza. – Ramas descendentes: aquí convergen las fibras que están involucradas en la flexión cervical. Provienen de las raíces C1, C2 y C3 y el hipogloso, formando el asa del hipogloso.
