Cardiovascular System (Key terms)

Question 1

The heart- description

Answer 1

• 4 chambers
  
  • Right Atrium/ Left Atrium.
  • Right ventricle/ Left ventricle.
    Ventricles have all the power!!!!
• Atriums and ventricles are separated by valves to prevent backflow.
• Left side and right side are separated by the septum.

Question 2

Define the systemic system

Answer 2

• Pumps oxygenated blood to the muscles (O2 gets used) and deoxygenated blood back again.

Question 3

Define the pulmonary system

Answer 3

• Pumps deoxygenated blood to the lungs (gets saturated with O2) and oxygenated blood back again.

Question 4

Define Heart rate

Answer 4

• The number of times the heart beats per minute.
• Average= 72 bpm.

Question 5

Define Stroke volume

Answer 5

• The volume of blood pumped out by the left ventricle per beat.
• Average 70 ml.

Question 6

Define cardiac output

Answer 6

• The volume of blood pumped out by the left ventricles per minute.
• Calculated by the following:
  Q= SV x HR
  Average= 5,040