Why is the receptor The important element determining the effect a neurotransmitter has on a target cell?

Why is the receptor the important element determining the effect a neurotransmitter has on a target cell? Different neurotransmitters have different receptors. Thus, the type of receptor in the postsynaptic cell is what determines which ion channels open.

What responses are generated by the nervous system when you run in a treadmill?

Running on a treadmill involves contraction of the skeletal muscles in the legs (efferent somatic motor), increase in contraction of the cardiac muscle of the heart (efferent autonomic motor), and the production and secretion of sweat in the skin to stay cool (sensation of temp = afferent visceral sensory, sweat gland …

What happens to the membrane potential during the repolarization phase of the action potential and what causes this change?

A concentration gradient acts on K+, as well. As K+ starts to leave the cell, taking a positive charge with it, the membrane potential begins to move back toward its resting voltage. This is called repolarization, meaning that the membrane voltage moves back toward the −70 mV value of the resting membrane potential.

What responses are generated by the nervous system when you run on the treadmill include an example of each type of tissue that is under nervous system control?

Include an example of each type of tissue that is under nervous system control. Running on a treadmill involves contraction of the skeletal muscles in the legs, increase in contraction of the cardiac muscle of the heart, and the production and secretion of sweat in the skin to stay cool.

What is the role of the nervous system in the body quizlet?

The primary function of the nervous system is to collect a multitude of sensory information; process, interpret, and integrate that information; and initiate appropriate responses throughout the body.

What happens to the membrane potential during the repolarization phase of the action potential and what causes this change quizlet?

The repolarization phase of the action potential involves decreasing sodium influx via inactivation of sodium channels and increasing potassium efflux (exit) via opening potassium channels. Both of these processes begin near the peak of the action potential.

When does hyperpolarization occur?

Depolarization and hyperpolarization occur when ion channels in the membrane open or close, altering the ability of particular types of ions to enter or exit the cell. For example: The opening of channels that let positive ions flow out of the cell (or negative ions flow in) can cause hyperpolarization.