Bio Cardiovascular

generates blood pressure
regulates blood flow as needed
transports O2, CO2, nutrients, hormones, immune cells, antibodies, wastes....
maintains homeostasis

away from the heart

Thin inner endothelium
Thick smooth muscle layer (middle)
Outer connective tissue

regulate blood pressure

toward the heart

small veins

allow blood to flow in one direction

smallest blood vessels in your vascular system

one cell thick

provide cardiac tissue with oxygen and nutrients

myocardial infarction or heart attack

thick fibrous sac that supports and protects

mostly cardiac muscle tissue

smaller thin

larger more muscular lower chambers

separate the atria from the ventricles and prevent backflow of blood into the atria

On the right side of the heart, has three flaps

On the left side of the heart, has two flaps

Prevent the backflow of blood into the ventricles

between left ventricle and aorta

between right ventricle and pulmonary artery

contraction of a chamber of the heart

relaxation of a chamber of the heart

Located in the right atrium
Causes atria to contract
Generates an electrical signal that sets the tempo of the heartbeat

receives the signal from the SA node

that penetrate the walls of the ventricles, causing the ventricles to contract

A powerful tool that records the electrical events associated with the heartbeat

indicate heart problems

signals from SA node spread across the atria and cause them to CONTRACT

spread of signals through ventricles and ventricular contraction (RELAX)

repolarization of the ventricles before contraction

a pressure wave created by the alternate expansion and contraction of the arteries

smooth muscle of the middle layer contracts

Smooth muscle of the middle layer relaxes

blood pressure cuff

Highest pressure in the artery during each heartbeat (during ventricular contraction)

Lowest pressure in the artery during each heartbeat (during ventricular relaxation)

transports blood to and from the lungs forms pulmonary circuit goes from right ventricle to lungs to left ventricle

transports blood to and from body tissues

stroke, heart attack, angina pectoris (chest pain), or an aneurysm.

condition in which plaque builds up inside the arteries.

a heart attack

a stroke

occurs when the flow of blood to the heart is blocked, most often by a build

occurs when the wall of an artery is weakened and swells outward (disease, inflammation, injury, birth defect)

depriving tissues of oxygen and nutrients to the tissyes and cells which can be fatal

surgical repair of a blood vessel

mechanical device that replaces the lower chambers (ventricles) of the heart.(ventricles) of the heart.