tentorium cerebelli - ANS-separates cerebrum from cerebellum
brain is ___% of total blood supply - ANS-20
arteries that feed the brain - ANS-internal carotid and vertebral arteries
blood leaves the brain through - ANS-internal jugular veins
blood-brain barrier function - ANS-protect brain from harmful substances
, cerebralspinal fluid definition - ANS-clear fluid composed mostly of H2O circulates
through brain ventricles and central canal of spinal cord
cerebralspinal fluid function - ANS-absorbs shock
protection
transport nutrients
excrete waste
ventricles of brain - ANS-lateral- 2 cerebral hemispheres
3rd- diencephalon
4th ventricle- brain stem and cerebellum
formation of CSF in ventricles - ANS-plasma drawn from choroid plexuses through
ependymal cells into ventricles
flow of CSF - ANS-lateral ventricles--> interventricular foramen
3rd ventricle--> cerebral aqueduct
4th ventricle--> subarachnoid space (brain) or central canal (spinal cord)
how is CSF reabsorbed into blood? - ANS-by arachnoid villi--> enters
sinuses-->dumped back into veinous blood--> jugular vein--> heart & lungs-->
capillaries
cranial nerves overview - ANS-12 pairs
part of peripheral nervous system
originate on inferior surface of brain
olfactory nerve function (I) - ANS-sensory, olfaction
trochlear nerves function (IV) - ANS-motor
superior oblique eye muscle
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller Hkane. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for £6.48. You're not tied to anything after your purchase.
