IB Biology - 6.2 Revision

When blood leaves the left atrium it passes through which valve?

• mitral

• aortic

• pulmonary

• tricuspid

Blood passes through this valve after leaving the right ventricle:

• tricuspid valve

• mitral valve

• aortic valve

• pulmonary valve

Which vessels transport de-oxygenated blood from the heart to the lungs?

• pulmonary veins

• pulmonary aorta

• pulmonary arteries

• pulmonary capillaries

Name the artery that carries blood from the left ventricle to the body

• vena cava
• aorta
• pulmonary Vein
• pulmonary artery

What is the circulation of blood from the hearts to the lungs and back to the heart is called what?

• Secondary Circulation
• Prime Circulation
• Pulmonary Circulation

A complete heartbeat

• cardiac systole

• cardiac diastole

• cardiac cycle

• cardiac arrest

Pacemaker of the heart

• SA node

• Right atrium

• Left atrium

• AV node

Tags

NGSS.HS-LS1-3

Which of the following define diastole and systole

• systole is the contraction of the heart and diastole is the relaxation of the heart
• diastole is the contraction of the heart and systole is the relaxation of the heart
• diastole and systole are both contractions of the heart
• diastole and systole are both relaxation phases of the heart

The second heart sound (the dup of the lub-dup) is caused by the

• opening of the pulmonary and aortic valves
• closure of the tricuspid and bicuspid valves
• closure of the pulmonary and aortic valves
• opening of the tricuspid and bicuspid valves

Place the following in the correct order:

1. atria contract

2. AV node

3. Bundle of His

4. Purkinje fibers

5. SA node

6. ventricles contract

• 5, 1, 2, 3, 4, 6

• 2, 1, 5, 3, 4, 6

• 5, 6, 2, 3, 4, 1

• 2, 6, 5, 3, 4, 1