A patient has been bitten by a snake. The snake venom contains a toxin that specifically targets nicotinic acetylcholine receptors (nAChRs). Immediately after the venom enters the bloodstream the patient begins suffering from paralysis at their extremities. Question: which of the following statements best describes what is happening and why? O The snake venom competitively inhibits nAChRs, preventing acetylcholine from opening an ion channel that depolarizes the postsynaptic cell. O The toxin activates metabotropic receptors. G-proteins then activate CAMP that, in turn, acts upon second messenger pathways. O The toxin acts via presynaptic inhibition to prevent acetylcholine from entering the synaptic cleft. O All of the above.
A patient has been bitten by a snake. The snake venom contains a toxin that specifically targets nicotinic acetylcholine receptors (nAChRs). Immediately after the venom enters the bloodstream the patient begins suffering from paralysis at their extremities. Question: which of the following statements best describes what is happening and why? O The snake venom competitively inhibits nAChRs, preventing acetylcholine from opening an ion channel that depolarizes the postsynaptic cell. O The toxin activates metabotropic receptors. G-proteins then activate CAMP that, in turn, acts upon second messenger pathways. O The toxin acts via presynaptic inhibition to prevent acetylcholine from entering the synaptic cleft. O All of the above.
Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
Related questions
Question
Transcribed Image Text:A patient has been bitten by a snake. The snake venom contains a toxin that
specifically targets nicotinic acetylcholine receptors (nAChRs). Immediately after
the venom enters the bloodstream the patient begins suffering from paralysis at
their extremities.
Question: which of the following statements best describes what is happening
and why?
O The snake venom competitively inhibits nAChRs, preventing acetylcholine from
opening an ion channel that depolarizes the postsynaptic cell.
O The toxin activates metabotropic receptors. G-proteins then activate CAMP that, in
turn, acts upon second messenger pathways.
O The toxin acts via presynaptic inhibition to prevent acetylcholine from entering the
synaptic cleft.
O All of the above.
Expert Solution
This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
Step by step
Solved in 2 steps
Recommended textbooks for you
Human Anatomy & Physiology (11th Edition)
Anatomy and Physiology
ISBN:
9780134580999
Author:
Elaine N. Marieb, Katja N. Hoehn
Publisher:
PEARSON
Anatomy & Physiology
Anatomy and Physiology
ISBN:
9781259398629
Author:
McKinley, Michael P., O'loughlin, Valerie Dean, Bidle, Theresa Stouter
Publisher:
Mcgraw Hill Education,
Human Anatomy
Anatomy and Physiology
ISBN:
9780135168059
Author:
Marieb, Elaine Nicpon, Brady, Patricia, Mallatt, Jon
Publisher:
Pearson Education, Inc.,
Human Anatomy & Physiology (11th Edition)
Anatomy and Physiology
ISBN:
9780134580999
Author:
Elaine N. Marieb, Katja N. Hoehn
Publisher:
PEARSON
Anatomy & Physiology
Anatomy and Physiology
ISBN:
9781259398629
Author:
McKinley, Michael P., O'loughlin, Valerie Dean, Bidle, Theresa Stouter
Publisher:
Mcgraw Hill Education,
Human Anatomy
Anatomy and Physiology
ISBN:
9780135168059
Author:
Marieb, Elaine Nicpon, Brady, Patricia, Mallatt, Jon
Publisher:
Pearson Education, Inc.,
Anatomy & Physiology: An Integrative Approach
Anatomy and Physiology
ISBN:
9780078024283
Author:
Michael McKinley Dr., Valerie O'Loughlin, Theresa Bidle
Publisher:
McGraw-Hill Education
Human Anatomy & Physiology (Marieb, Human Anatomy…
Anatomy and Physiology
ISBN:
9780321927040
Author:
Elaine N. Marieb, Katja Hoehn
Publisher:
PEARSON