Information about Cervical Nerves
| Nerve: | ||
|---|---|---|
) | ||
| Dermatome distribution of the trigeminal nerve | ||
| Latin | nervi cervicales | |
| subject #209 921 | ||
| Dorlands/Elsevier | n_05/12565364 | |
Although there are seven cervical vertebrae (C1-C7), there are eight cervical nerves (C1-C8). All nerves except C8 emerge above their corresponding vertebrae, while the C8 nerve emerges below the C7 vertebra. (In the other portions of the spine, the nerve emerges below the vertebra with the same name.)
Dorsal (posterior) distribution includes the greater occipital (C2) and third occipital (C3).
Ventral (anterior) distribution includes the cervical plexus (C1-C4) and brachial plexus (C5-C8)
Additional images
The nerves of the scalp, face, and side of neck. | Hypoglossal nerve, cervical plexus, and their branches. | ) Posterior primary divisions of the upper three cervical nerves. | ) Diagram of the distribution of the cutaneous branches of the posterior divisions of the spinal nerves. |
Areas of distribution of the cutaneous branches of the posterior divisions of the spinal nerves. | The right brachial plexus with its short branches, viewed from in front. | Side of neck, showing chief surface markings. |
This article was originally based on an entry from a public domain edition of Gray's Anatomy. As such, some of the information contained herein may be outdated. Please edit the article if this is the case, and feel free to remove this notice when it is no longer relevant.
Nerves: spinal nerves | |
|---|---|
| Cervical | anterior (Cervical plexus, Brachial plexus) - posterior (Posterior branches of cervical nerves, Suboccipital, Greater occipital, Third occipital) |
| Thoracic | anterior (Intercostal, Intercostobrachial - T2, Thoraco-abdominal nerves - T7-T11, Subcostal - T12) - posterior (Posterior branches of thoracic nerves) |
| Lumbar | anterior (Lumbar plexus, Lumbosacral trunk) - posterior (Posterior branches of the lumbar nerves, Superior cluneal nerves) |
| Sacral | anterior (Sacral plexus) - posterior (Posterior branches of sacral nerves, Medial cluneal nerves) |
| Coccygeal | anterior (Coccygeal plexus) - posterior (Posterior branch of coccygeal nerve) |
Latin}}}
Official status
Official language of: Vatican City
Used for official purposes, but not spoken in everyday speech
Regulated by: Opus Fundatum Latinitas
Roman Catholic Church
Language codes
ISO 639-1: la
ISO 639-2: lat
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Official status
Official language of: Vatican City
Used for official purposes, but not spoken in everyday speech
Regulated by: Opus Fundatum Latinitas
Roman Catholic Church
Language codes
ISO 639-1: la
ISO 639-2: lat
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Elsevier, the world's largest publisher of medical and scientific literature, forms part of the Reed Elsevier group. Based in Amsterdam, the company has substantial operations in the UK, USA and elsewhere.
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The term spinal nerve generally refers to the mixed spinal nerve, which is formed from the dorsal and ventral roots that come out of the spinal cord. The spinal nerve is the bit that passes out of the vertebrae through the intervertebral foramen.
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In vertebrates, cervical vertebrae (singular: vertebra) are those vertebrae immediately behind (caudal to) the skull.
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Variation among species
In some species, some parts of the skull may be composed of vertebra-like elements, e.g...... Click the link for more information.
The greater occipital nerve is a spinal nerve arising from the dorsal primary rami of cervical spinal nerve 2, between the first and second cervical vertebrae, along with the lesser occipital nerve.
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third occipital nerve, which pierces the Trapezius and ends in the skin of the lower part of the back of the head.
It lies medial to the greater occipital and communicates with it.
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It lies medial to the greater occipital and communicates with it.
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The cervical plexus is a plexus of the ventral rami of the first four cervical spinal nerves which are located 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.
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The brachial plexus is an arrangement of nerve fibres, running from the spine, specifically from above the fifth cervical vertebra to underneath the first thoracic vertebra (C5-T1). It proceeds through the neck, the axilla (armpit region) and into the arm.
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Public domain comprises the body of knowledge and innovation (especially creative works such as writing, art, music, and inventions) in relation to which no person or other legal entity can establish or maintain proprietary interests within a particular legal jurisdiction.
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Henry Gray's Anatomy of the Human Body (or Gray's Anatomy as it has commonly been shortened) is an English-language human anatomy textbook widely regarded as a classic work on the subject.
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A nerve is an enclosed, cable-like bundle of axons (the long, slender projection of a neuron). Neurons are sometimes called nerve cells, though this term is technically imprecise since many neurons do not form nerves, and nerves also include the glial cells that
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The term spinal nerve generally refers to the mixed spinal nerve, which is formed from the dorsal and ventral roots that come out of the spinal cord. The spinal nerve is the bit that passes out of the vertebrae through the intervertebral foramen.
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The ventral ramus (anterior ramus, anterior branch, anterior divisions of the spinal nerves) supply the antero-lateral parts of the trunk, and the limbs; they are for the most part larger than the posterior divisions.
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The cervical plexus is a plexus of the ventral rami of the first four cervical spinal nerves which are located 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.
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The brachial plexus is an arrangement of nerve fibres, running from the spine, specifically from above the fifth cervical vertebra to underneath the first thoracic vertebra (C5-T1). It proceeds through the neck, the axilla (armpit region) and into the arm.
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The posterior (or dorsal) branches (or divisions) of the spinal nerves are as a rule smaller than the anterior divisions.
They are directed backward, and, with the exceptions of those of the first cervical, the fourth and fifth sacral, and the coccygeal, divide into medial
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They are directed backward, and, with the exceptions of those of the first cervical, the fourth and fifth sacral, and the coccygeal, divide into medial
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The posterior branches of cervical nerves branch from the dorsal rami of the cervical nerves.
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Branches
First
The posterior division of the first cervical or suboccipital nerve is larger than the anterior division, and emerges above the posterior arch of the atlas..... Click the link for more information.
The first spinal nerve, the suboccipital nerve exits the spinal cord between the skull and the first cervical vertebra, the atlas.
It supplies muscles around the suboccipital triangle including the rectus capitis posterior major, obliquus capitis superior, and obliquus
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It supplies muscles around the suboccipital triangle including the rectus capitis posterior major, obliquus capitis superior, and obliquus
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The greater occipital nerve is a spinal nerve arising from the dorsal primary rami of cervical spinal nerve 2, between the first and second cervical vertebrae, along with the lesser occipital nerve.
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third occipital nerve, which pierces the Trapezius and ends in the skin of the lower part of the back of the head.
It lies medial to the greater occipital and communicates with it.
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It lies medial to the greater occipital and communicates with it.
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The thoracic nerves are the spinal nerves emerging from the thoracic vertebrae.
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Anterior divisions
- The intercostal nerves come from thoracic nerves T1-T11, and run between the ribs ("costae"). At T2 and T3, it further branches into the intercostobrachial nerve.
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The intercostal nerves are the anterior divisions (rami anteriores; ventral divisions) of the thoracic spinal nerves from T1 to T11.
Each nerve is connected with the adjoining ganglion of the sympathetic trunk by a gray and a white ramus communicans.
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Each nerve is connected with the adjoining ganglion of the sympathetic trunk by a gray and a white ramus communicans.
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intercostobrachial nerve.
It pierces the Intercostalis externus and the Serratus anterior, crosses the axilla to the medial side of the arm, and joins with a filament from the medial brachial cutaneous nerve.
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It pierces the Intercostalis externus and the Serratus anterior, crosses the axilla to the medial side of the arm, and joins with a filament from the medial brachial cutaneous nerve.
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thoraco-abdominal nerves (or thoracicoabdominal intercostal nerves).
They have the same arrangement as the upper ones as far as the anterior ends of the intercostal spaces, where they pass behind the costal cartilages, and between the Obliquus internus and Transversus
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They have the same arrangement as the upper ones as far as the anterior ends of the intercostal spaces, where they pass behind the costal cartilages, and between the Obliquus internus and Transversus
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The anterior division of the twelfth thoracic nerve (subcostal nerve) is larger than the others; it runs along the lower border of the twelfth rib, often gives a communicating branch to the first lumbar nerve, and passes under the lateral lumbocostal arch.
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The posterior branches of thoracic nerves branch from the dorsal rami of the thoracic nerves.
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Branches
Medial branches
The medial branches of the posterior divisions of the upper six..... Click the link for more information.
The lumbar nerves are the five spinal nerves emerging from the lumbar vertebrae. They are divided into posterior and anterior divisions.
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Posterior divisions
The medial branches of the posterior divisions of the lumbar nerves run close to the articular processes of the..... Click the link for more information.
The lumbar plexus is a nervous plexus in the lumbar region of the body. It is formed by the loops of communication between the anterior divisions of the first three and the greater part of the fourth lumbar nerves; the first lumbar often receives a branch from the last thoracic
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The lumbosacral trunk is nervous tissue that connects the lumbar plexus with the sacral plexus.
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Structure
The lumbosacral trunk comprises the whole of the anterior division of the fifth and a part of that of the fourth lumbar nerve; it appears at the medial margin of the..... Click the link for more information.
The posterior branches of the lumbar nerves branch from the dorsal rami of the lumbar nerves.
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Branches
- The medial branches run close to the articular processes of the vertebræ and end in the Multifidus.
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