Which of the Following Statements Concerning Control of Blood Flow

question 60

Multiple Choice

Which of the following statements concerning control of blood flow through arterioles is TRUE?

• A)Beta-adrenergic receptors are more abundant on most arteriolar smooth muscle than are alpha-adrenergic receptors.
• B)Binding of epinephrine to alpha-adrenergic receptors causes vasodilation.
• C)Increased stimulation of vascular smooth muscle by the parasympathetic nervous system causes increased vasoconstriction.
• D)If the arterial blood pressure to an organ suddenly decreases,arterioles in the organ will dilate in response.
• E)Body-wide constriction of arterioles results in a decrease in the total peripheral resistance (TPR).

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Definitions:

Synthesized

Synthesized involves creating a compound or material from simpler substances through chemical or biological processes.

Neurotransmitter Identification

The process of determining the specific neurotransmitters involved in transmitting signals between neurons in the nervous system.

Excitatory Synapses

Connections between neurons that increase the likelihood of the receiving neuron firing an action potential.

Inhibitory Synapses

Synapses that decrease the likelihood of the firing of the post-synaptic neuron, helping to regulate and control neural activity.