In an Experiment, You Set Up a Crayfish Muscle That

question 24

Multiple Choice

In an experiment, you set up a crayfish muscle that has an attached stretch receptor.If you gradually increase the amount of stretch you apply to the muscle, you will

• A) diminish the magnitude of the action potential in the stretch receptor.
• B) increase the magnitude of the receptor potential in the stretch receptor.
• C) cause ion channels in the dendrites of the stretch receptor to close.
• D) decrease the rate of action potentials generated in the stretch receptor.
• E) cause the resulting depolarization to spread from the cell body to the dendrites of the stretch receptor.

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Definitions:

Venules

Small vessels that transport blood from the capillaries to the veins, playing a key role in the circulatory system.

Atrioventricular Node

A part of the heart's electrical system situated between the atria and ventricles that regulates the timing of heart muscle contractions.

Action Potential

Brief reversal of the charge difference across a neuron membrane.

Veins

Blood vessels that carry blood toward the heart, typically carrying deoxygenated blood from the tissues back to the heart except in the case of pulmonary veins.