Exam (elaborations)
VALID 2024/2025 BIOLOGY 252 EXAM 1 WITH CORRECT ANSWERS
- Course
- Institution
VALID 2024/2025 BIOLOGY 252 EXAM 1 WITH CORRECT ANSWERS
[Show more]
Content preview
VALID 2024/2025 BIOLOGY 252EXAM 1 WITH CORRECT ANSWERS
Oligodendrocytes - CORRECT ANSWERS- nueroglia that form
myelin sheath
Astrocytes - CORRECT ANSWERS- most abundant microglia
structure of CNS
controls chem. environment-absorbs ions
Ependymal - CORRECT ANSWERS- circulates CSF with cilia
lining Brain cavities
Microglia - CORRECT ANSWERS- immune cells of CNS
collect debris
phagotize
Schwann - CORRECT ANSWERS- myelin in PNS
Satellite cells - CORRECT ANSWERS- insulation in Soma (PNS)
, Blood Brain Barrier - CORRECT ANSWERS- between capillary and
ECF
Astrocytes send signals to tighten
Pericytes induce formation
If cilia did not beat - CORRECT ANSWERS- excess ECF causes
brain to swell
Hydrocephalus - CORRECT ANSWERS- water on brain
excess CSF
Reversal Potential - CORRECT ANSWERS- Equilibrium; membrane
potential that counteracts the chemical gradient
K+ ion reversal potential and concentration - CORRECT ANSWERS-
More K+ ions in Cytosol inside the cell than the ECF
(-88mv)
if membrane potential is -12 K+... - CORRECT ANSWERS- ions
moves out
if MP is -100 K+ ions... - CORRECT ANSWERS- move in
Na+ concentration and reversal potential - CORRECT ANSWERS-
Larger concentration outside of the cell
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 or Stuvia-credit 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 Elitaa. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $14.99. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
51292 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 15 years now