What makes up the cervical plexus?
The cervical plexus is a conglomeration of cervical nerves formed by the anterior (ventral) rami of spinal nerves C1-C4 (a.k.a. 1st-4th cervical nerves). These are the roots (limbs) of the cervical plexus.
What are the two cervical nerve plexuses?
Cervical Nerves The anterior distribution includes the cervical plexus (C1–C4) and brachial plexus (C5–T1).
What are the branches of cervical plexus?
The superficial branches are the great auricular nerve, lesser occipital nerve, transverse cervical, suprasternal, and supraclavicular nerves. The deep branches are the phrenic, communicantes cervicales, communicating, and muscular.
Where cervical plexus is formed?
The cervical plexus is formed from the ventral rami of the upper four cervical nerves (Figure 4-22, B). Their dorsal and ventral roots combine to form spinal nerves as they exit through the intervertebral foramen. The anterior rami of C2 through C4 form the cervical plexus.
What is the most important nerve of the cervical plexus?
the phrenic nerve
The most important clinical correlate with respect to the cervical plexus is the injury of the phrenic nerve, an important branch of the cervical plexus. Phrenic nerve severance or injury results in the paralysis of one half of the diaphragm.
What are the 4 nerve plexuses?
Spinal plexuses
| Spinal Plexus | Spinal Level |
|---|---|
| Brachial Plexus | C5 – T1 |
| Lumbar Plexus | L1 – L4 |
| Sacral Plexus | L4, L5, S1 – S4 |
| Coccygeal Plexus | S4, S5, Co |
What are the 4 plexuses of spinal nerves?
Spinal Plexuses
- Cervical Plexus—Serves the Head, Neck and Shoulders.
- Brachial Plexus—Serves the Chest, Shoulders, Arms and Hands.
- Lumbar Plexus—Serves the Back, Abdomen, Groin, Thighs, Knees, and Calves.
- Sacral Plexus—Serves the Pelvis, Buttocks, Genitals, Thighs, Calves, and Feet.
Which branch of cervical plexus supplies face?
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 | |
|---|---|
| FMA | 5904 |
| Anatomical terms of neuroanatomy |
What happens if the cervical plexus is damaged?
Damage to the cervical plexus can cause sensory disturbances to the posterior head, neck, submandibular region, and the superior back, in a cape-like distribution.
What does C5 and C6 control?
Roots C5, C6, and C7 produce the long thoracic nerve, responsible for controlling the serratus anterior.
What is the anatomy of the cervical plexus?
The plexus is formed by the anterior rami (divisions) of cervical spinal nerves C1-C4. In this article, we shall look at the anatomy of the cervical plexus – its branches, functions and clinical correlations. The spinal nerves C1 – C4 form the basis of the cervical plexus.
What happens to the cervical plexus after a car accident?
Severe trauma to the neck can cause major damage to portions of the cervical plexus. 1 Injuries such as whiplash can stretch some of the nerve branches. Injuries can cause muscle sprains, strains, and spasms, which may irritate the nerve. Bleeding into the area near the cervical plexus can temporarily compress any of its nerve branches.
How many cervical Plexi do you have?
You have two cervical plexi—one on the left and one on the right. They are located on the left and right side of the neck. Your cervical plexus is found deep in your neck at the level of the corresponding cervical spinal nerves.
Is the fifth cervical nerve part of the plexus?
However, most authors include the fifth cervical nerve (i.e. the anterior ramus of spinal nerve C5) to the plexus owing to its contribution to the formation of one of the motor branches of the cervical plexus called the phrenic nerve .