Thyrotropin-Releasing Hormone Is Secreted by the

question 72

Multiple Choice

Thyrotropin-releasing hormone is secreted by the

• A)Anterior pituitary
• B)Hypothalamus
• C)Cerebral cortex
• D)Liver
• E)Kidney

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Definitions:

Ventricular Depolarization

The electrical activity that triggers contraction of the ventricles, the heart's lower chambers, during the cardiac cycle.

Ventricular Repolarization

is the process of restoring the heart's ventricles to their resting state after contraction, depicted as the T wave on an ECG.

Cardiac Cycle

The sequence of events that occur in the heart during one heartbeat, including systole and diastole phases.

AV Bundle

The bundle of His, a collection of heart muscle cells specialized for electrical conduction that transmits the electrical impulses from the AV node to the point of the apex of the fascicular branches.