Heart Conduction and Vital Signs Quiz

What is the primary function of the sinoatrial (SA) node in the heart's conduction system?

• To pump blood to the lungs

• To initiate the heartbeat

• To receive blood from the body

• To filter blood

Which component of the heart's conduction system is known as the "pacemaker"?

• Atrioventricular (AV) node

• Bundle of His

• Sinoatrial (SA) node

• Purkinje fibers

What is the correct order of the conduction pathway in the heart?

• SA node, AV node, Bundle of His, Purkinje fibers

• AV node, SA node, Purkinje fibers, Bundle of His

• Purkinje fibers, Bundle of His, AV node, SA node

• Bundle of His, Purkinje fibers, SA node, AV node

What is the pulse?

• The sound of the heart valves closing

• The rhythmic expansion and contraction of an artery as blood is pumped through it

• The electrical activity of the heart

• The pressure of blood against the walls of veins

Which instrument is commonly used to measure blood pressure?

• Thermometer

• Stethoscope

• Sphygmomanometer

• Electrocardiogram

What is the normal range for a resting adult's pulse rate in beats per minute (bpm)?

• 30-50 bpm

• 60-100 bpm

• 100-150 bpm

• 150-200 bpm

What does the top number in a blood pressure reading represent?

• Diastolic pressure

• Systolic pressure

• Pulse rate

• Heart rate

Which part of the heart's conduction system directly stimulates the ventricles to contract?

• SA node

• AV node

• Bundle of His

• Purkinje fibers

How is blood pressure typically expressed?

• As a single number

• As a ratio of two numbers

• In percentage

• In liters per minute

What is the primary purpose of measuring blood pressure?

• To determine the oxygen level in the blood

• To assess the force of blood against artery walls

• To measure the heart's electrical activity

• To calculate the heart's output