When blood is flowing against gravity or when a vein is squeezed by muscle action there is a risk that the blood will flow in the wrong direction, what feature of the veins prevent this backflow of blood?
Back
Card 8
Front
How many chambers does the heart have?
Back
Card 9
Front
What are the four chambers of the heart called?
Back
Card 10
Front
What is the definition of heart rate?
Back
Card 11
Front
What is the definition of stroke volume?
Back
Card 12
Front
What is the definition of cardiac output?
Back
Card 13
Front
How can cardiac output be calculated?
Back
Card 14
Front
What effect does regular exercise exercise have on the arteries and blood pressure?
Back
Card 15
Front
What effect does regular exercise have on the heart?
