Week 14 Content Flashcards
(29 cards)
What comes off the aorta and brachiocephalic artery
The common carotid artery
What does the common carotid artery split into
- External carotid artery
- Internal carotid artery
What does the external carotid artery supply
External parts of the face
What does the internal carotid artery go
Into the skull through the carotid foramen
What does the internal carotid artery split into
- Anterior cerebral artery
- Middle cerebral artery
Where does the anterior cerebral artery run
The interhemispheric fissure
Where does the middle cerebral artery go
Out the sylvian fissure
What comes off the subclavian artery
The vertebral artery
Where does the vertebral artery run
Through the vertebrae (foramina transversaria)
- Then it goes through the foramen magnum
What happens after the vertebral arteries join
They form the basilar artery (anterior to brainstem)
- Then it splits into the posterior cerebral artery
Circle of Willis
The connections of specific arteries make a circle shape
- The anterior communicating artery allows the anterior cerebral arteries to communicate
- The posterior communicating artery connects the posterior cerebral artery to the internal carotid artery on the same side
Where do the main cerebral arteries travel
Through the subarachnoid space
Where does the anterior cerebral artery run
- Superior to medial cortex
- Frontal lobe to anterior parietal lobe
Where does the posterior cerebral artery run
- Inferior to medial cortex
- Occipital lobe to temporal lobe
What does the middle cerebral artery consist of
Three division
- Superior
- Inferior
- Deep branch
Superior division of the middle cerebral artery
Lateral aspect of frontal lobe and anterior-parietal lobe
Inferior division of the middle cerebral artery
Anterolateral aspect of temporal lobe and posterior parietal cortex
What does the deep branch of the middle cerebral artery feed
- Body of caudate
- Most of lentiform (putamen and globus pallidus) nucleus
What does the deep branch of the posterior cerebral artery feed
The thalamus
How is blood drained
Through bridging veins that empty out into the sinuses
Where does the superior sagittal sinus drain into
The transverse sinus
Where does the transverse sinus drain into
The internal jugular veins
Where does the internal jugular vein drain into
The subclavian vein
Types of vascular injuries
- Blockage/Occlusion
- Hemorrhage
