Blood supply of brain and spinal cord Flashcards
The _______ originate at the bifurcation of the left
and right common carotid arteries, at the level of
the fourth cervical vertebrae (C4).
Internal carotid arteries
In the cranial cavity, the internal carotid artery
passes anteriorly through the _______.
Cavernous sinus
Branch of the internal carotid artery that supplies
the structures of the orbit.
Ophthalmic artery
Branch of the internal carotid artery that supplies
structures in the brain important for motor control
and vision.
Anterior choroidal artery
The right and left vertebral arteries arise from
the _______ arteries, medial to the anterior scalene
muscle.
Subclavian
The vertebral arteries ascend the posterior aspect of the neck, through holes in the transverse
processes of the cervical vertebrae, known
as _______.
Foramen transversarium.
The vertebral arteries enter the cranial cavity via
the _______.
Foramen magnum
The two vertebral arteries converge to form
the _______.
Basilar artery
The terminal branches of the vertebral and internal
carotid arteries all anastomose to form a circular
blood vessel, called the _______.
Circle of Willis.
Terminal branches of the internal carotid arteries.
Anterior cerebral arteries
Terminal branches of the basilar artery.
Posterior cerebral arteries
The _______ arteries supply
the anteromedial portion of the cerebrum.
Anterior cerebral
The _______ arteries are situated laterally, supplying the majority of the lateral part of the
brain.
Middle cerebral
The _______ arteries supply both the medial and
lateral parts of the posterior cerebrum.
Posterior cerebral
The main blood supply to the spinal cord.
Vertebral arteries
