Use the Following to Answer Questions

question 139

Multiple Choice

Use the following to answer questions:
Refer to the diagram below of the mammalian circulatory system.
-The left ventricle is indicated at which point?

• A) 1
• B) 2
• C) 3
• D) 4
• E) The left ventricle is not represented in the diagram.

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Definitions:

Receptor Site

Specific locations on the surface of a cell or within a cell that are sensitive to neurotransmitters or hormones, allowing for cellular communication.

Voltage Shift

A change in the electrical potential across a membrane, often referring to neurons or muscle cells.

Inhibitory

Pertaining to a process that restrains or suppresses physiological action or behavior, such as inhibitory neurotransmitters in the nervous system.

Excitatory

Pertaining to or causing excitation, often used in the context of neurotransmitters that increase the likelihood of a neuron firing an action potential.