Unit 3 Focus Study

Question 1

Heart coverings (outer to inner)

Answer 1

• fibrous pericardium
• parietal pericardium
• visceral pericardium/epicardium

Question 2

Walls of heart (outer to inner)

Answer 2

• epicardium/visceral pericardium
• myocardium
• endocardium

Question 3

cardiac conduction system pathway

Answer 3

1. sinoatrial node (SA node)
2. junctional fibers/internodial pathways
3. atrioventricular node (AV node)
4. AV bundle/Bundle of His
5. right and left bundle branches
6. purkinje fibers

Question 4

Blood vessels pathway from ventricles to atria

Answer 4

1. leaves heart via arteries
2. arterioles/metarterioles
3. capillaries
4. venules
5. veins
6. back to heart via vena cava and pulmonary veins to left atrium

Question 5

walls of arteries and veins (outer to inner)

Answer 5

• tunica externa/adventitia
• tunica media
• tunica intima/interna

Question 6

Hypertension

Answer 6

persistently elevated arterial pressure (high blood pressure)