Pt. 2 DOL Cardio Responses During Exercise

Front

What is cardiac output?

Back

The amount of blood the heart pumps in one minute, calculated as heart rate multiplied by stroke volume.

Front

How is cardiac output calculated?

Back

Cardiac output = heart rate × stroke volume.

Front

What is heart rate?

Back

The number of times the heart beats per minute.

Front

What is stroke volume?

Back

The amount of blood pumped by the heart with each beat.

Front

What factors can affect heart rate during exercise?

Back

Factors include exercise intensity, fitness level, age, and emotional state.

Front

What is the relationship between heart rate and exercise intensity?

Back

As exercise intensity increases, heart rate typically increases to supply more oxygen to the muscles.

Front

What is the role of the autonomic nervous system in regulating heart rate?

Back

The autonomic nervous system adjusts heart rate through sympathetic (increases heart rate) and parasympathetic (decreases heart rate) responses.

Front

What is the significance of increased stroke volume during exercise?

Back

Increased stroke volume allows the heart to pump more blood per beat, improving oxygen delivery to muscles.

Front

How does exercise affect blood pressure?

Back

During exercise, systolic blood pressure increases to enhance blood flow to active muscles, while diastolic pressure may remain stable or decrease.

Front

What is the difference between systolic and diastolic blood pressure?

Back

Systolic blood pressure is the pressure in the arteries during heartbeats, while diastolic blood pressure is the pressure when the heart is at rest between beats.