Exam (elaborations)
Berne and Levy Physiology
- Course
- Institution
- Book
Berne and Levy Physiology
[Show more]
Connected book
Book Title:
Author(s):
- Edition:
- ISBN:
- Edition:
More summaries for
-
Test Bank for Berne and Levy Physiology, 7th Edition by Koeppen
-
Berne and Levy Physiology
-
Berne and Levy Physiology
Seller
Follow
kushboopatel6867
Reviews received
Content preview
TEST BANK For Berne and Levy Physiology 8th Edition byKoeppen & Stanton
Which of the following statements about the resting membrane potentials is true?
a. it is normally equal to zero volts.
b. the inside of the membrane is positively charged compared to the outside.
c. it results in part from the concentration gradient of Na+ and K+
d. the main force is a K+ voltage gated channel. - ANSWER:c. it results in part from
the concentration gradient of Na+ and K+
The resting membrane potential in a typical nerve cell is approximately
a. +70mV
b. -70mV
c. +35mV
d. 0mV - ANSWER:b. -70mV
Compared to the outside surface, the inside of a resting cell membrane is
a. positively charged
b. negatively charged
c. electrically neutral
d. continuously reversing its electrical charge - ANSWER:b. negatively charged
As the charge on the membrane of a typical neuron approaches 0- -70mV, the cell is
- ANSWER:depolarizing
The ion that plays a key role in initiating electrical signals in neurons is -
ANSWER:Na+
Which of the following is NOT involved in creating the resting potential of a neuron?
- ANSWER:resting membrane permeability of sodium ions greater than potassium
ion.
The Nerst equation predicts - ANSWER:the membrane potential resulting from
permeability to a single ion.
The total number of neurotransmitter released at the axon terminal is directly
related to a single ion. - ANSWER:the total number of action potentials.
All of the following must occur before a second action potential can begin. Except: -
ANSWER:the Na+ and K+ ions that moved in/out of the cell must move back to their
original compartments.
Which of the following does NOT influence the time necessary for a nerve impulse to
be conveyed by a particular neuron? - ANSWER:whether axon is sensory or motor
, A chemical synapse ALWAYS includes __________.
1. Axon terminal
2. Presynaptic cell
3. Synaptic cell
4. Postsynaptic cell
5. Dendrite cell - ANSWER:1, 2, 3, 4
Inhibitory neurotransmitters of the CNS act by opening ______ channels. -
ANSWER:Cl-/K+
Which of the following neurophysiology concepts are not matched up correctly? -
ANSWER:falling phase of the action potential -Na+ enters the cell.
Which of the following is NOT a known drug effect on synaptic function? -
ANSWER:change the type of neurotransmitter found in the synaptic vesicle.
The pattern of synaptic connectivity where a large number of presynaptic neurons
provide input to a single post-synaptic neuron. - ANSWER:convergence
when two or more graded potentials arrive at the trigger zone, which of the
following could happen?
a. an excitory and inhibitory signal cancel each other out.
b. two excitory stimuli may be additive
c. Two inhibitory to be additive resulting in lower excitability.
d. ----
e. A B and C - ANSWER:e. A B and C
Which of the following statements in these groups are true statements about IPSP
and EPSP?
EPSP
1. -
2. -
3. Depolarizes a neuron, increasing the likelihood of an action potential.
4. -
IPSP
5. -
6. Hyperpolarizes a neuron, decreasing the likehood of an action potential.
7. -
8. -
9. -
10. Increases permeability of chloride ions. - ANSWER:b. 3, 6, 10
Temporal summation refers to - ANSWER:additional graded potential(s) arriving
before previous ones have ceased.
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 kushboopatel6867. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $17.99. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
71184 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now