Nervous System and Blood Pressure Regulation

Flashcards covering key terms related to the nervous system's role in blood pressure regulation and relevant medications.

Baroreceptor Reflex

A reflex mechanism that helps regulate blood pressure by adjusting HR and vessel tone.

Orthostatic Hypotension

A condition where standing up quickly leads to a sudden drop in blood pressure, often resulting in dizziness or fainting.

Hypertension

A condition characterized by persistently high blood pressure.

Diabetes

A chronic health condition that can damage nerves involved in blood pressure regulation.

Neurological Disorders

Conditions such as Parkinson's disease that can weaken the baroreceptor reflex, causing unstable blood pressure.

Vasodilators

Medications that widen blood vessels, making blood flow easier and lowering blood pressure.

Calcium Channel Blockers

Drugs that relax blood vessels and reduce heart strain by blocking calcium entry into muscle cells.

ACE Inhibitors

Medications that lower blood pressure by preventing the formation of angiotensin II, which narrows blood vessels.

Diuretics

Medications that lower blood pressure by reducing fluid volume in the body through increased urine output.

Beta-Blockers

Medications that lower blood pressure by blocking the effects of adrenaline on the heart and blood vessels. reduce force of contraction and slower HR

Thiazide Diuretics

The most prescribed type of diuretic, which increases urine production to reduce blood pressure.

Loop Diuretics

Strong diuretics that act on the kidneys to block reabsorption of sodium and water, leading to increased urine output.

Potassium-Sparing Diuretics

Mild diuretics that promote fluid loss while retaining potassium levels in the body.

Blood Volume

The total amount of blood circulating within the body, which affects blood pressure.