Occipital artery
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| Artery: Occipital artery | |
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| The arteries of the face and scalp. (Occipital visible at center left.) | |
| Latin | arteria occipitalis |
| Gray's | subject #144 556 |
| Supplies | occiput, scalp |
| Source | external carotid artery |
| Vein | occipital vein |
| Dorlands / Elsevier | a_61/12155290 |
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The occipital artery arise opposite the facial artery, its path is below the posterior belly of digastic to the occipital region. This artery supplies blood to the back of the scalp and sterno-mastoid muscles. Other muscles it supplies are deep muscles in the back and neck.
Course and Relations
At its origin, it is covered by the posterior belly of the Digastricus and the Stylohyoideus, and the hypoglossal nerve winds around it from behind forward; higher up, it crosses the internal carotid artery, the internal jugular vein, and the vagus and accessory nerves.
It next ascends to the interval between the transverse process of the atlas and the mastoid process of the temporal bone, and passes horizontally backward, grooving the surface of the latter bone, being covered by the Sternocleidomastoideus, Splenius capitis, Longissimus capitis, and Digastricus, and resting upon the Rectus capitis lateralis, the Obliquus superior, and Semispinalis capitis.
It then changes its course and runs vertically upward, pierces the fascia connecting the cranial attachment of the Trapezius with the Sternocleidomastoideus, and ascends in a tortuous course in the superficial fascia of the scalp, where it divides into numerous branches, which reach as high as the vertex of the skull and anastomose with the posterior auricular and superficial temporal arteries.
Its terminal portion is accompanied by the greater occipital nerve.
Additional images
 Superficial dissection of the right side of the neck, showing the carotid and subclavian arteries. |
 The internal carotid and vertebral arteries. Right side. |
 The nerves of the scalp, face, and side of neck. |
 Posterior primary divisions of the upper three cervical nerves. |
 Side of neck, showing chief surface markings. |
External links
- Occipital+artery at eMedicine Dictionary
- Anatomy at MUN head/cbv
- Norman/Georgetown lesson4 (parotid4)
- Diagram at stchas.edu
- Description at okstate.edu
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.
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Some of the initial content on this page may be incorporated in part from copyleft sources in the public domain including wikis such as Wikipedia and AskDrWiki. Drug information for patients came from the The National Library of Medicine. Infectious disease information may have come from the Centers for Disease Control (CDC). Differential Diagnoses are drawn from clinicians as well as an amalgamation of 3 sources: 1.The Disease Database; 2. Kahan, Scott, Smith, Ellen G. In A Page: Signs and Symptoms. Malden, Massachusetts: Blackwell Publishing, 2004:3; 3. Sailer, Christian, Wasner, Susanne. Differential Diagnosis Pocket. Hermosa Beach, CA: Borm Bruckmeir Publishing LLC, 2002:7 .
