Cardiovascular System Quiz

Which of the following is a function of the cardiovascular system?

• Regulating body temperature

• Preventing Infection

• Transporting hormones and wastes

• All of these are functions of the cardiovascular system.

The real work of the heart contractions is done by which layer?

• Epicardium

• Pericardium

• Endocardium

• Myocardium

The pericardium around the heart is responsible for

• Opening and closing the heart valves

• Creating the heart beat

• Reducing friction

• Bringing oxygen in from the lungs

Which of the following is the correct sequence for the intrinsic conduction system?

• SA node--> Av Node-->AV bundle--> Purkinje fibers--Bundle branches

• AV node--> AV bundle--> SA node--> bundle branches--> Purkinje fibers

• AV node--> AV bundles--> Purkinje fibers--> bundle branches--> SA node

• SA node--> AV node--> AV bundles--> bundle branches--> Purkinje fibers

The human cardiovascular system has two loops. Which loop takes blood from the heart to the body tissue and back?

• Pulmonary Loop

• Coronary Loop

• Systemic Loop

• Systolic Loop

Which of the following chambers of the heart are involved in the ejection phase of the cardiac cycle?

• Right atrium and left ventricle

• Right ventricle and left ventricle

• Right atrium and right ventricle

• Left atrium and left ventricle

The blood vessel that carries oxygenated blood away from the heart is the

• Vena Cava

• Aorta

• Pulmonary artery

• Pulmonary vein

Which is the correct formula for calculating cardiac output?

• cardiac output = stroke volume + heart rate

• Cardiac output = stroke volume - heart rate

• Cardiac output = stroke volume x heart rate

• Cardiac output = stroke volume/heart rate

Which of the following factors influences heart rate?

• Presence of certain ions

• Temperature change

• Activity level

• All of the above

• Emotional event

Tags

NGSS.HS-LS1-3

The SA node is located in the ________ near the opening of the _________.

• Right atrium, superior vena cava

• Right ventricle, inferior vena cava

• Septum, pulmonary valve

• Left atrium, pulmonary veins

• Septum, aorta