Systemic Vascular Resistance Decreases When the

question 29

Multiple Choice

Systemic vascular resistance decreases when the

• A)blood viscosity increases.
• B)stroke volume increases.
• C)arterioles dilate.
• D)arterioles respond to sympathetic nerve stimulation.

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Definitions:

Neuronal Networks

Complex webs of neurons interconnected through synapses, responsible for transmitting and processing information in the brain and nervous system.

Myelin Sheaths

Protective coverings around nerve fibers that increase the speed at which electrical impulses propagate along the nerve cells.

White Matter

Brain tissue composed of myelinated nerve fibers that connect different areas of the brain, facilitating communication among neurons.

Synapses

Structures that permit a neuron (nerve cell) to pass an electrical or chemical signal to another neuron, essential for the transmission of nerve impulses.