Exam (elaborations)
Portage Module 6 Problem Set- Pathophysiology
- Course
- Institution
Portage Module 6 Problem Set- Pathophysiology
[Show more]
Content preview
1-32 of 32Describe each phase of an action potential.
Give this one a go later!
Phase 1: Resting Potential: During the resting phase, both sodium and
potassium gates are closed.
Phase 2: Depolarization: The sodium gates open, and sodium rushes into
the axon during the depolarization phase of the action potential. Voltage
travels to zero and then up to +40 mV.
Phase 3: Repolarization: The sodium gates close, and potassium gates
open allowing potassium to rush out of the axon. This returns a negative
voltage to the inside of the axon.
, Phase 4: After-polarization, also called hyperpolarization. Potassium gates
are slow to close, and there is an undershoot of the potential. The voltage
drops below -70mV and then returns to -70mV as the resting state is re-
established.
What are the 3 hallmark signs of Parkinson's disease?
Give this one a go later!
Tremor, rigidity, bradykinesia
What is the major difference between central sleep apnea and obstructive sleep
apnea?
Give this one a go later!
The brain does not properly signal the respiratory muscles with central
sleep apnea. With OSA, the airway collapses, but the respiratory muscles
maintain their function.
What stage of sleep is impaired with a diagnosis of narcolepsy?
Give this one a go later!
REM sleep
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 codersimon. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $8.00. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
74735 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now