Sternocleidomastoid branches of occipital artery

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Artery: Sternocleidomastoid branches of occipital artery
The arteries of the face and scalp.
Latin rami sternocleidomastoidei arteriae occipitalis
Gray's subject #144 556
Source occipital artery   
Dorlands
/ Elsevier    		 r_02/12692073

The sternocleidomastoid branches of occipital artery (sternocleidomastoid artery) generally arises from the occipital close to its commencement, but sometimes springs directly from the external carotid.

It passes downward and backward over the hypoglossal nerve, and enters the substance of the muscle, in company with the accessory nerve.

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List of arteries of head and neck
CC/EC
cervical branches (ascending palatine, tonsillar, submental, glandular) - facial branches (inferior labial, superior labial/nasal septum, lateral nasal, angular)
sternocleidomastoid - meningeal - occipital - auricular - descending
CC/IC
orbital group: posterior ethmoidal - anterior ethmoidal (anterior septal, anterior lateral nasal, anterior meningeal) - lacrimal (lateral palpebral) - medial palpebral - terminal (supraorbital, supratrochlear, dorsal nasal)
ocular group: central retinal - ciliary (short posterior, long posterior, anterior) - hypophysial (superior, inferior)
SC
meningeal - spinal (posterior, anterior) - cerebellar (PICA)
basilar: pontine - labyrinthine - cerebellar (AICA, SCA) - cerebral (PCA)