Unit 4 - Transportation - Cardio Quiz

Match the vocabulary terms with the definition.

• Inferior vena cava

• When this chamber contracts, it pushes blood through the tricuspid valve.

• Tricuspid and Bicuspid valves

• Prevents blood from flowing back into the atria when the ventricles contract.

• Right atrium

• Initiates the action potential that causes the heart to beat.

• Left ventricle

• When blood leaves this chamber of the heart, it heads out of the body.

• SA node

• One of the body's largest vessels; it takes blood from below the diaphragm to the heart

Match the vocabulary terms with the definition.

• Pulmonary trunk

• The chamber in the heart that receives oxygenated blood from the lungs.

• Left atrium

• When blood leaves this chamber of the heart, it heads to the lungs.

• Semilunar valves

• Stops blood from flowing back into the ventricles each time they contract.

• AV node

• Responsible for distributing electrical impulses throughout the heart.

• Right ventricle

• This blood vessel splits into two and send oxygen-poor blood to the lungs.

​ (a)   are the smallest blood vessels with the ​ (b)   walls in order to maximize diffusion of nutrients in and out of the interstitial fluid.

• Capillaries
• thinnest
• Arteries
• Veins
• thickest

​ (a)   carry blood towards the heart and ​ (b)   carry blood away from the heart.

• Veins
• arteries
• Capillaries

Blood traveling in the pulmonary circuit goes through the ​ (a)   side of the heart and out to the ​ (b)   . Blood traveling in the systemic circuit goes through the ​ (c)   side of the heart and out to the ​ (d)   .

• right
• lungs
• left
• body

Describe the unique property of pacemaker cells and what they make possible in the heart. (2pt)

Why is coronary circulation an essential process? (1pt)

Tags

NGSS.HS-LS1-3

Label the four chambers of the heart. (4pts)

a

b

c

d

Right ventricle

Left ventricle

Aorta

Left atrium

Right atrium

Vena cava