Cardiac Output and Blood Pressure

What is the definition of Cardiac Output?

• CO is the amount of blood that is pumped out of the heart per beat

• CO is the amount of blood that is pumped out of the heart when it tells you it is tired

• CO is the number of times the heart beats per minute

• CO is the amount of blood that is pumped out of the heart per minute

How do you calculate Cardiac Output?

• CO = HR / SV

• CO = HR - SV

• CO = HR + SV

• CO = HR x SV

Calculate the Cardiac output

SV= 70 ml/beat

HR = 75 beats/min

• 5 L/min

• 5.25 L/min

• 5.5 L/min

• 5.35 L/min

If heart rate is 180 beats/min (which is very fast) and stroke volume is 70 mL/beat, then the cardiac output would be:

• 12 L/min

• 12.6 L/min

• 13L/min

• 13.6 L/min

Tags

NGSS.HS-LS1-3

What is the volume of blood ejected by the ventricle in one minute called?

• stroke volume

• cardiac cycle

• coronary volume

• cardiac output

The force of blood on the vessels during contraction and relaxation of the heart.

• Heart Rate

• Skin Conductivity

• Blood Pressure

• Respiration Rate

Tags

NGSS.HS-LS1-3

During diastole, what happens to the pressure in the arteries?

• The pressure is low

• The pressure is high

• The pressure doesn't change

The average blood pressure is 

• 120/80

• 80/120

• 115/180

• 120/180

Tags

NGSS.HS-LS1-3

The pressure exerted on the arterial walls when the heart relaxes is called the

• diastolic pressure

• systolic pressure

• hydrostatic pressure

• osmotic pressure

Systolic blood pressure is....

• lowest pressure during contraction

• lowest number

• highest pressure during contraction