Match the Anatomical Structures, Labelled A

question 15

Multiple Choice

Match the anatomical structures, labelled a. through e., with the heart characteristics. (Options may be used more than once or not at all.)
-its cells have slow Ca²⁺ channels

• A)tricuspid valve
• B)myocardium
• C)aortic semilunar valve
• D)AV node
• E)sinoatrial node

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Definitions:

Norepinephrine

A neurotransmitter and hormone involved in arousal, alertness, and regulation of blood pressure, among other physiological processes.

Manic Episode

a period of abnormally elevated mood, arousal, and energy levels, often seen in bipolar disorder.

Neurotransmitter

A chemical substance released at the end of a nerve fiber by the arrival of a nerve impulse, transmitting the impulse to another nerve fiber, a muscle fiber, or some other structure.

Chronic Depression

A prolonged state of depression that lasts for years, often characterized by persistent sadness and loss of interest.