Revision Structure and Function of the Cardiovascular System

Which of the following is a chamber of the heart?

• Left Aorta

• Right Bicuspid

• Left Atrium

• Right Vena Cava

Which of the following is the correct formula for calculating cardiac output?

• Stroke Volume × Systolic Pressure

• Stroke Volume × Heart Rate

• Diastolic Pressure × Heart Rate

• Systolic Pressure ÷ Diastolic Pressure

What are the blood vessels that supply the heart with oxygen called?

• Coronary arteries

• Cardiac vessels

• Hypertensive veins

• heart capillaries

Which of the following is not a type of blood cell?

• White Blood Cells

• Platelets

• Red Blood Cells

• Yellow Blood Cells

What is the primary function of white blood cells?

• To fight infection

• To clot blood when bleeding or bruised

• To transport oxygen

• To carry blood cells

What is the blood pressure recorded as blood is ejected during the contraction phase of the heart cycle called?

• Diastolic pressure

• Tricuspid valve pressure

• Hypertensive carotid pressure

• Systolic pressure

Normal core body temperature ranges from

• 36.5–37.5° C.

• 36–38° F.

• 21.5–24.5° C

• 80–90° C

The redirection of blood flow and increased sweating can lead to impaired performance, as less blood flows to the working muscles than would normally in cooler conditions. Fluid loss through sweating causes

• an increase in the fatiguing by-products that accumulate in the kidneys

• a decrease in the amount of carbon dioxide available for use by the mitochondria in energy production

• an increased reliance on protein as a fuel source

• a decrease in blood plasma volumes.

Heart rate increases at the commencement of exercise for the duration of the activity. At the conclusion of the activity, heart rate will

• return to pre-exercise (resting) levels.

• remain elevated until an adequate cool-down is completed.

• drop below resting levels to allow for by-products to be removed

• increase to maximal levels to allow more oxygen to assist with recovery

At rest, an individual with a stroke volume of 60 mL and a heart rate of 70 bpm will have a cardiac output of

• 70 + 60 = 130 L/min

• 70 – 60 = 10 L/min.

• 70 × 60 = 4.2 L/min.

• 70 × 60 = 4200 mm Hg