Heart Anatomy
Wider, superior end of the heart
base
What term describes heart relaxation?
diastole
What is the average length of a cardiac cycle?
Which blood type produces A and Rh antigens?
Type A+
Which heart chambers are the receiving chambers?
atria
Pointed, inferior end of the heart
apex
Where does blood flow after entering the right atria?
Right ventricle
What term describes a higher than normal heart rate (above 100 beats per minute)?
tachycardia
Which blood type is known as the universal donor?
O-
Which ventricle contains thicker walls?
left
In which body cavity does the heart sit?
thoracic cavity
Through what vessel does deoxygenated blood return to the heart from all over the body?
superior/inferior vena cava
What is the average heart rate?
75 beats per minute
Which blood type would produce the A and Rh antibody?
Type B-
List 4 materials the cardiovascular system transports.
oxygen, nutrients, cell wastes, hormones
What is the membrane that surrounds the heart?
pericardium
Through what vessel does oxygenated blood leave the heart heading throughout the body?
aorta
What is the heart's pacemaker?
An individual produces no antigens, what is their blood types?
O-
Which type of blood vessels carry blood away from the heart?
arteries
What is the middle wall of the heart, made mostly of cardiac muscle?
myocardium
Which heartbeat sound is the louder, longer sound of the atrioventricular valves closing?
lub
What nerve fibers line the ventricles and when receiving an electrical impulse, cause the ventricles to contract?
purkinje fibers
Which blood types can AB+ blood receive?
all blood types
Which pathway does blood travel from the heart to the lungs and back to the heart?
pulmonary circuit