100 Wk 5 Cardiac Physiology I

Cardiac Cycle: One complete cycle = __________________________

• One complete cardiac cycle is typically one heartbeat.

• One complete cardiac cycle is typically two heartbeats.

• One complete cardiac cycle is typically three heartbeats.

• One complete cardiac cycle is typically four heartbeats.

As the atriums are filling, the pressure within them is rising. Once the ____________ pressure exceeds the ventricular pressure, the AV Valves (Mitral & Tricuspid) open.

• Atrial

• Ventricular

• Pulmonary

• Systemic

Blood flows from ______________ to ______________ pressure.

• high to low

• low to high

• medium to high

• medium to low

What is one of the components to Diastole?

• Early Rapid Filling

• Atrial Systole

• Isovolumic Contraction

• Isovolumic Relaxation

Atrial Contraction is also known as atrial ________.

• kick

• beat

• pulse

• wave

The amount of blood in the ventricles at the end of diastole causes closure of the __________________.

• valves

• arteries

• veins

• capillaries

SL Valves act as _______________ valves that only permit blood flow out of the ventricles during systole.

• one-way

• two-way

• pressure

• control

Systole is a period of contraction when the ventricles __________ the blood.

• eject

• absorb

• filter

• store

Ejection ______ at the apex and proceeds up to the base of the heart.

• begins

• ends

• stops

• pauses

During systole, what are the mitral and tricuspid valves doing?

• They are open.

• They are closed.

• They are partially open.

• They are malfunctioning.