Information about Greater Occipital Nerve

The Semispinalis capitis (Complexus) is situated at the upper and back part of the neck, beneath the Splenius, and medial to the Longissimus cervicis and capitis.
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''For other uses of the word, see Scalp (disambiguation)

The scalp is the anatomical area bordered by the face anteriorly and the neck to the sides and posteriorly.
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The cervical nerves are the spinal nerves from the cervical vertebrae.

Although there are seven cervical vertebrae (C1-C7), there are eight cervical nerves (C1-C8).
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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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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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The cervical nerves are the spinal nerves from the cervical vertebrae.

Although there are seven cervical vertebrae (C1-C7), there are eight cervical nerves (C1-C8).
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In vertebrates, cervical vertebrae (singular: vertebra) are those vertebrae immediately behind (caudal to) the skull.

Variation among species

In some species, some parts of the skull may be composed of vertebra-like elements, e.g.
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The lesser occipital nerve or small occipital nerve is a spinal nerve arising between the first and second cervical vertebrae, along with the greater occipital nerve. It innervates the scalp in the lateral area of the head behind the ear.
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''For other uses of the word, see Scalp (disambiguation)

The scalp is the anatomical area bordered by the face anteriorly and the neck to the sides and posteriorly.
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outer ear is the most external portion of the ear. The outer ear includes the pinnae (also called auricle), the ear canal, and the very most superficial layer of the ear drum (also called the tympanic membrane).
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For the toad wart, see parotoid gland.

The parotid gland is the largest of the salivary glands. It is found wrapped around the mandibular ramus, and it secretes saliva through Stensen's duct into the oral cavity, to facilitate mastication and swallowing.
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Occipital neuralgia, also known as C2 neuralgia, is a medical condition characterized by chronic pain in the upper neck, back of the head and behind the ears. These areas correspond to the locations of the lesser and greater occipital nerves.
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eMedicine is an online clinical medical knowledge base that was founded in 1996 by Scott Plantz and Richard Lavely, two medical doctors. It was sold to WebMD in January 2006.
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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 anatomy and neurology, the ventral root (or anterior root) is the efferent motor root of a spinal nerve.

At its distal end, the ventral root joins with the dorsal root to form a mixed spinal nerve.
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In anatomy and neurology, the dorsal root (or posterior root) is the afferent sensory root of a spinal nerve.

At the distal end of the dorsal root is the dorsal root ganglion, which contains the neuron cell bodies of the nerve fibres conveyed by the root.
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In anatomy and neurology, the dorsal root ganglion (or spinal ganglion) is a nodule on a dorsal root that contains cell bodies of neurons in afferent spinal nerves.

The axons of dorsal root ganglion neurons are known as afferents.
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The cauda equina is a structure within the lower end of the spinal column of most vertebrates, that consists of nerve roots and rootlets from above. Cauda equina is sometimes considered as an extension of the pia mater of the spinal cord.
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Each spinal nerve receives a branch, gray ramus communicans, from the adjacent ganglion of the sympathetic trunk.

They contain unmyelinated postganglionic sympathetic fibers.
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The thoracic, and the first and second lumbar nerves each contribute a branch, white ramus communicans to the adjoining sympathetic ganglion.

They contain myelinated preganglionic sympathetic fibers (GVE and GVA).
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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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The cervical nerves are the spinal nerves from the cervical vertebrae.

Although there are seven cervical vertebrae (C1-C7), there are eight cervical nerves (C1-C8).
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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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The thoracic nerves are the spinal nerves emerging from the thoracic vertebrae.

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 lumbar nerves are the five spinal nerves emerging from the lumbar vertebrae. They are divided into posterior and anterior divisions.

Posterior divisions

The medial branches of the posterior divisions of the lumbar nerves run close to the articular processes of the
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The five sacral nerves emerge from the sacrum. Although the vertebral components of the sacrum are fused into a single bone, the sacral vertebrae are still used to number the sacral nerves.
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The coccygeal nerve is the spinal nerve that corresponds to the coccyx bone.

Structure

The coccygeal nerve is the 31st spinal nerve. It arises from the sacral plexus, and its ventral ramus helps form the coccygeal plexus.
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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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