Grade A+
During which phase of the cardiac cycle is the mitral valve normally open? -
ANSWERSVentricular diastole
Blood flow through the coronary arteries: - ANSWERSoccurs during diastole during the
backwards flow of blood just ejected into the aorta
Phase 2 of the cardiac muscle action potential is associated with: - ANSWERSopening of Ca+
channels
The order of impulse conduction in the heart is from the: - ANSWERSSA node to AV node to AV
bundle (bundle of His) to bundle branches to purkinje fibers
Aortic regurgitation is associated with: - ANSWERSdiastolic murmur
The Frank- Starling Law of the heart states that: - ANSWERSincreased diastolic volume will
stretch the myocardial fibers and produce a greater stroke volume
Which disorder may follow a dental problem, IV drug use or prolonged insertion of IV catheters?
- ANSWERSBacterial endocarditis
A major modifiable risk factor that predisposes a person to atherosclerosis: - ANSWERSelevated
LDLs