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Occipital artery

Encyclopedia : O : OC : OCC : Occipital artery



 

The arteries of the face and scalp. |- style="text-align: center;" class="hiddenStructure" | colspan="2" |

|- style="text-align: center; line-height: 1;" class="hiddenStructure" | colspan="2" | |- class="hiddenStructure" |Latin |colspan="2"|a. occipitalis |- class="hiddenStructure" |[[List of subjects in Gray's Anatomy:144#Gray.27s_page_.23|Gray's]] |colspan="2"|[subject #144 ] |- class="hiddenStructure" |Supplies |colspan="2"| |- class="hiddenStructure" |From |colspan="2"|external carotid artery |- class="hiddenStructure" |To |colspan="2"| |- class="hiddenStructure" |Vein |colspan="2"| |- class="hiddenStructure" |MeSH |colspan="2"|[] |- class="hiddenStructure" |Dorlands/Elsevier |colspan="2"|[/] |} 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.

External links

Artery:
Arteries [http://encycl.opentopia.com/ edit]
pulmonary - aorta - ascending aorta - aortic arch - brachiocephalic - carotid - common carotid | (Gray's [s141]-Gray's [s143])

EXTERNAL CAROTID: superior thyroid - lingual - facial - occipital - stylomastoid - superficial temporal artery - maxillary - middle meningeal | (Gray's [s144])

INTERNAL CAROTID: ophthalmic - retinal - middle cerebral | (Gray's [s146])

CIRCLE OF WILLIS: anterior cerebral - anterior communicating - posterior cerebral - posterior communicating | (Gray's [s147])

SUBCLAVIAN: vertebral - anterior spinal - posterior inferior cerebellar - internal thoracic - superior epigastric - basilar | ((Gray's [s148])

AXILLA: axillary (lateral thoracic - subscapular - thoracoacromial - dorsal scapular) - brachial - radial - ulnar - posterior interosseous | (Gray's [s149]-Gray's [s152])

DESCENDING AORTA: thoracic aorta - bronchial - abdominal aorta - celiac artery (left gastric - hepatic - common hepatic - gastroduodenal - gastroepiploic - splenic - short gastric) - mesenteric (superior - inferior) - marginal - renal | (Gray's [s153]-Gray's [s154])

ILIAC/FETAL: common iliac - internal iliac - internal pudendal - external iliac - inferior epigastric - artery of Adamkiewicz - umbilical | (Gray's [s155]-Gray's [s156])

LEGS: femoral - profunda femoris - popliteal - anterior tibial - dorsalis pedis - posterior tibial - peroneal | (Gray's [s157]-Gray's [s162])

 


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