the internal carotid artery
the carotid artery passes through the carotid canal to the brain
Internal carotid artey passes through the carotid canal and takes blood to the brain
to allow the vertebral artery to pass through to the brain
There are two types of stenosis. One is in an artery and the second is in the vertebral canal. The term focal means that this narrowing is not large or lengthy. If it is in the vertebral canal, there can be no symptoms at all or mild ones. If in the artery, there's more concern because this narrowing can cause lack of oxygen and nutrients to get to the area the artery is going. There is surgical treatment for both.
The vertebral artery carries blood from the heart to the brain. An enlarged vertebral artery is usually caused by an accumulation of plaque that narrows the amount of blood flow to the brain causing memory loss or dizziness. An enlarged vertebral artery can also cause a sense of fullness near the ear, feels like water lodged in the canal.
the carotid artery passes through the carotid canal to the brain
Internal carotid artey passes through the carotid canal and takes blood to the brain
through lateral wall where optic canal and internal carotid artery are
spinal cord
The carotid canal. When viewed from a superior angle, the internal carotid may appear to be transmitted through the foramen lacerum; however, it is not. The foramen lucerum is actually covered by connective tissue and transmits NO vessels or nerves. Though there are many hypotheses as to the purpose of the foramen lucerum, there is no definitive answer.
(From Wikipedia)The internal carotid artery passes superiorly from the carotid canal in the base of the skull, emerging via that part of the foramen lacerum which is not occluded by cartilage.The artery of pterygoid canal, the nerve of pterygoid canal and some venous drainage also pass through the foramen lacerum.The nerve of pterygoid canal comprises the deep petrosal nerve and the greater petrosal nerve the former carrying sympathetic fibres and the latter parasympathetic fibres of the autonomic nervous system to blood vessels, mucous membranes, salivary glands, and lacrimal glands.Furthermore, one of the terminal branches of the ascending pharyngeal artery (itself a branch of the external carotid artery) passes through the foramen lacerum. The ascending pharyngeal artery is one of three possible "meningeal branches" of this vessel.Lastly, some emissary veins pass through the foramen lacerum. These connect the extracranial pterygoid plexus with the intracranial cavernous sinus and present an unopposed route for infection.
An alar canal is a bony tunnel through the basisphenoid bone of the skull, through which the maxillary artery and nerve pass.
The temporal bone is the site of jugular foramen and the carotid canal.
to allow the vertebral artery to pass through to the brain
Yes.
An alar foramen is the opening at either end of the alar canal, the bony canal through the basisphenoid bone of the skull, through which the maxillary artery and nerve run.
Optic nerve and ophthalmic artery passes through this foramen to your eye ball.