HTH 100 Ch. 16 Flashcards
Cardiovascular disease (CVD)
Disease of the heart and blood vessels
Ideal Cardiovascular Health (ICH)
The absence of clinical indicators of CVD and the presence of certain favorable behavioral and health factor metrics
Cardiovascular System
Organ system, consisting of the heart and blood vessels, that transports nutrients, oxygen, hormones, metabolic wastes, and enzymes throughout the body
Atria (Singular: Atrium)
The heart’s two upper chambers, which receive blood
Ventricles
The heart’s two lower chambers, which pump blood through the blood vessels
Arteries
Vessels that carry blood away from the heart to other regions of the body
Arterioles
Branches of the arteries
Capillaries
Minute blood vessels that branch out from the arterioles and venules, their thin walls permit exchange of oxygen, carbon dioxide, nutrients, and waster products among body cells
Veins
Vessels that carry blood back to the heart from other regions of the body
Venules
Branches of the veins
Sinoatrial Node (SA Node)
Cluster of electric pulse-generating cells that serves as a natural pacemaker for the heart
Sudden Cardiac Death (SCD)
An abrupt, profound loss of heart function (cardiac arrest) that causes death either instantly or shortly after symptoms occur
Hypertension
Sustained elevated blood pressure
Resistant Hypertension
A from of HBP that is difficult to control and may require three or more different classes of antihypertensive drugs to begin to control blood pressure
Systolic Blood Pressure
The upper number in the fraction that measures blood pressure, indicating pressure on the walls of the arteries then the heart contracts
Diastolic Blood Pressure
The lower number in the fraction that measures blood pressure, indicating pressure on the walls of the arteries during the relaxation phase of heart activity
Prehypertensive
Blood pressure is above normal, but not yet in the hypertensive range
Arteriosclerosis
A general term for thickening and hardening of the arteries
Atherosclerosis
Condition characterized by deposits of fatty substances (plaque) in the inner lining of an artery