Cavernous part of internal carotid artery

The Cavernous Portion of internal carotid artery.—In this part of its course, the artery is situated between the layers of the dura mater forming the cavernous sinus, but covered by the lining membrane of the sinus.

It at first ascends toward the posterior clinoid process, then passes forward by the side of the body of the sphenoid bone, and again curves upward on the medial side of the anterior clinoid process, and perforates the dura mater forming the roof of the sinus.

This portion of the artery is surrounded by filaments of the sympathetic nerve, and on its lateral side is the abducent nerve.

Branches: Inferior hypophysial artery

References

This article incorporates text in the public domain from the 20th edition of Gray's Anatomy (1918)

External links

MedEd at Loyola Neuro/neurovasc/navigation/iccav.htm

Arteries of the head and neck

cervical branches (ascending palatine, tonsillar, submental, glandular)
facial branches (inferior labial
superior labial / nasal septum
lateral nasal
angular)

1st part / mandibular	anterior tympanic deep auricular middle meningeal (superior tympanic, petrosal) accessory meningeal inferior alveolar (mental, mylohyoid)

2nd part / pterygoid	to muscles of mastication (deep temporal, pterygoid, masseteric) buccal

3rd part / pterygopalatine	posterior superior alveolar infraorbital (anterior superior alveolar) descending palatine (greater palatine, lesser palatine) artery of the pterygoid canal sphenopalatine (posterior septal branches, posterior lateral nasal) pharyngeal

cervical	carotid sinus

petrous	Vidian caroticotympanic

cavernous/ ophthalmic	orbital group:anterior ethmoidal (anterior septal, anterior lateral nasal, anterior meningeal) posterior ethmoidal lacrimal (lateral palpebral) medial palpebral terminal (supraorbital, supratrochlear, dorsal nasal) ocular group: central retinal ciliary (short posterior, long posterior, anterior) hypophysial (superior, inferior)

Willis/Cerebral	ACA (anterior communicating, medial striate) MCA (anterolateral central, Orbitofrontal artery, Prefrontal artery, Superior terminal branch, Inferior terminal branch, Anterior temporal branch) posterior communicating anterior choroidal

vertebral artery

meningeal
spinal (posterior, anterior)
basilar: pontine
labyrinthine
cerebellar (AICA, SCA, PICA)
cerebral (PCA)

thyrocervical trunk

inferior thyroid	inferior laryngeal tracheal esophageal ascending cervical pharyngeal glandular branches

transverse cervical	superficial branch deep branch / dorsal scapular

suprascapular	acromial branch

costocervical trunk

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