Imagine that scientists have just discovered a weird new marine tunicate at extreme depths of the ocean. They have a novel kind of neurotransmitter – maritonin – that binds to the “maritonin” receptor, which is permeable to negatively charged iodine ions (which are high concentration in seawater and in the extracellular fluid of this species). What do you predict would happen to the postsynaptic neuron when maritonin is released?Depolarization of the postsynaptic cell, increasing the chance of an action potentialHyperpolarization of the postsynaptic cell, decreasing the chance of an action potential Depolarization of the postsynaptic cell, decreasing the chance of an action potentialHyperpolarization of the postsynaptic cell, increasing the chance of an action potential In a central pattern generator, the pacemaker neural cells both have inhibitory inputs on each other. This is key for preventing opposing muscles from contracting at the same time (e.g., if your biceps and triceps contracted simultaneously). What is the term for this?Neural adaptationPost-inhibitory reboundReciprocal inhibitionReciprocity

A pacemaker is a medical device that uses electrical impulses to regulate and control the rhythm of…

Answered: Imagine that scientists have just…

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,...

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Imagine that scientists have just discovered a weird new marine tunicate at extreme depths of the ocean. They have a novel kind of neurotransmitter – maritonin – that binds to the “maritonin” receptor, which is permeable to negatively charged iodine ions (which are high concentration in seawater and in the extracellular fluid of this species). What do you predict would happen to the postsynaptic neuron when maritonin is released?

Depolarization of the postsynaptic cell, increasing the chance of an action potential
Hyperpolarization of the postsynaptic cell, decreasing the chance of an action potential
Depolarization of the postsynaptic cell, decreasing the chance of an action potential
Hyperpolarization of the postsynaptic cell, increasing the chance of an action potential

In a central pattern generator, the pacemaker neural cells both have inhibitory inputs on each other. This is key for preventing opposing muscles from contracting at the same time (e.g., if your biceps and triceps contracted simultaneously). What is the term for this?

Neural adaptation
Post-inhibitory rebound
Reciprocal inhibition
Reciprocity

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