HB1000 Exam 4 ch 5-7, 10-11

What part of the heart is responsible for pumping blood to the body?

• Right atrium

• Left atrium

• Right ventricle

• Left ventricle

When blood returns from the Superior Vena Cava to the heart, what part of the heart does it enter?

• Right atrium

• Left atrium

• Right ventricle

• Left ventricle

Select all that apply: Where in the body is a pulse normally taken?

• Radial vein

• Radial artery

• Carotid artery

• Renal capillaries

• Superior Vena Cava

The "lub" sound heard during a heartbeat is caused by

• opening the atrioventricular (AV) valves

• opening the semilunar valves

• closing the atrioventricular (AV) valves

• closing the semilunar valves

The "pacemaker" of the heart is the

• sinoatrial (SA) node

• atrioventricular (AV) node

• bicuspid valve

• septum

• cardiac control center

The greatest amount of blood pressure is in the aorta.

• True

• False

The exchange of gas, nutrients or waste occurs in the

• heart

• arteries

• veins

• capillaries

Systolic pressure is the lowest pressure and is when the ventricles relax

• True

• False

Select all that apply: Blood pressure is low in veins so what components of the circulatory system help return blood to the heart?

• heart

• skeletal muscles

• respiratory pump

• valves

Systemic circuit circulates blood through the lungs

• True

• False