XYZ For the Following Questions, Assume a Hypothetical Postsynaptic Neuron Has

question 264

Multiple Choice

XYZ
For the following questions, assume a hypothetical postsynaptic neuron has three presynaptic inputs: X, Y, and Z. Also assume that presynaptic neurons Y and Z are excitatory.
-Refer to the text.What permeability changes would be expected to occur at the postsynaptic neuron when presynaptic neuron Y is stimulated (Remember that the postsynaptic neuron becomes depolarized by presynaptic neuron Y.)

• A)increased PNa⁺ and PK⁺
• B)increased PK⁺ or PCl^-
• C)increased P_A-
• D)increased PCa²⁺

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Definitions:

Venae Cavae

The two large veins that return deoxygenated blood to the heart; consisting of the superior and inferior vena cava.

Blood Pressure

Blood pressure is the force that circulating blood exerts against the walls of blood vessels, essential for maintaining the body's circulatory function.

Capillaries

The smallest blood vessels in the body's circulatory system, facilitating the exchange of water, oxygen, carbon dioxide, and other nutrients between blood and tissues.

Pulse

The rhythmic throbbing of the arteries as blood is propelled through them, typically palpable at body sites where arteries are close to the skin surface.