VCE PE 1/2 - The Cardiorespiratory System

Deoxygenated blood re-enters the heart via the...

• Aorta
• Vena Cava
• Pulmonary Veins
• Lungs

When deoxygenated blood enters the heart, in what order does it travel before re-entering the systemic circuit?

• Right Atrium > Right Ventricle > Left Atrium > Left Ventricle
• Right Ventricle > Right Atrium > Left Ventricle > Left Atrium
• Left Atrium > Left Ventricle > Right Atrium > Right Ventricle
• Left Ventricle > Left Artrium > Right Ventricle > Right Atrium

The pulmonary circuit involves the...

• Heart & body
• Heart & lungs
• Heart & brain
• Lungs & muscles

Which of the following best represents the relationship between heart-rate (HR), cardiac output (Q) and stroke volume (SV)?

• SV = Q x HR
• HR = Q x SV
• Q = SV x HR
• Q = SV + HR

What is the component of blood that fights infections?

• RBC's
• WBC's
• Platelets
• Plasma

Arteries transport blood away from the heart

• True
• False

When we commence exercise our body would vasoconstrict vessels leading to which area of the body?

• Heart
• Brain
• Working Muscles
• Stomach

Vasodililation involves the narrowing of vessels

• True
• False

When assessing blood pressure with a reading of 120mmHg/80mmHg, the 80mmHg refers to which phase of the cardiac cycle

• Systolic
• Diastolic
• Hypobolic
• Alcoholic

Homeostasis is controlled by which part of the human body?

• Lungs
• Heart
• Hypothalamus
• Muscles