Which of the following are general functions of the cardiovascular system?

• Protection

• Delivery

• Secretion

• Removal

Answer explanation

Delivery oxygen, nutrients, immune cells

Remove waste products

Which of the following correctly matches the pulmonary and systemic circulatory systems with their pressure?

• Pulmonary - Low

• Pulmonary - High

• Systemic - Low

• Systemic - High

Which of the following does NOT match with veins?

• Low pressure

• Thinner walls

• Valves

• Slow blood speed

• High pressure

Which of the following does NOT match with arteries?

• Slow blood speed

• Thicker walls

• No valves

• Fast blood speed

• High pressure

Outer smooth layer

• Epicardium

• Myocardium

• Endocardium

• Pericardial Sac

• Pericardial Fluid

Thickest layer of muscle anchored to fibrous skeleton

• Epicardium

• Myocardium

• Endocardium

• Pericardial Sac

• Pericardial Fluid

Innermost layer of connective tissue & layer squamous cells

• Epicardium

• Myocardium

• Endocardium

• Pericardial Sac

• Pericardial Fluid

Smooth surface allows heart to contract & relax w/in pericardium w/ minimal friction

• Epicardium

• Myocardium

• Endocardium

• Pericardial Sac

• Pericardial Fluid

Continuous w/ endothelium lining arteries, veins, capillaries -> closed circulatory system

• Epicardium

• Myocardium

• Endocardium

• Pericardial Sac

• Pericardial Fluid

Double-walled membranous sac encloses heart

• Epicardium

• Myocardium

• Endocardium

• Pericardial Sac

• Pericardial Fluid