Ch 2 vascular, ventricular, CSF Flashcards
1
Q
Which artery supplies blood to the pons and cerebellum?
A
Basilar artery
2
Q
What three arteries branch off of the circle of Willis?
A
Anterior
Middle largest
Posterior
3
Q
Which artery supplies blood to the occipital lobe, thalamus, and midbrain?
A
Posterior cerebral artery
4
Q
When is the blood brain barrier formed?
A
about 20 weeks of gestation
5
Q
What are the functions of CSF?
A
Transports ions, nutrients, and hormones to neurons; removes waste
Regulates the composition of extracellular fluids surround neurons and glial cells
Provides a watery, protective cushion around the brain and spinal cord
6
Q
What causes hydrocephalus?
A
a blockage of reabsorption of CSF.
