BSCI 201 Final Exam Questions and Answers 100% Solved
0 view 0 purchase
Course
BSCI 201
Institution
BSCI 201
BSCI 201 Final Exam Questions and
Answers 100% Solved
Why are neurons amitotic? - because they do not go through mitosis
therefore they don't replicate
Do brain tumors originate from neurons or neuroglia cells? -
Neuroglia cells; because they exhibit a rapid rate of mitotic division
Biosynthe...
microglia - ✔✔phagocytes that engulf and destroy debris and pathogens
Astrocytes - ✔✔control of the blood brain barrier (BBB) and blood flow
Ependymal cells - ✔✔cavities in the brain called ventricles are lined with
these cells
Oligodendrocytes - ✔✔cytoplasmic extensions wrap around segments of
axons to MYELINATE the axons
Blood Brain Barrier - ✔✔-Tight junctions that restrict the movement of
substances between
endothelial cells.
-Specific transport proteins determine which substances can cross the
barrier to prevent interference with the function of neurons
Schwann cells - ✔✔MYELINATE axons of neurons in the PNS
Satellite cells - ✔✔Form a halo around neuron cells bodies in a ganglion
to prevent interference from other cell bodies in the ganglion
Explain why myelinated axons in the CNS do not regenerate when severed
- ✔✔NO neurilemma to guide growth of severed axon
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 JOSHCLAY. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $10.99. You're not tied to anything after your purchase.
