Identify the circuit pumps blood from the heart, to the lungs, and back to the heart.

• systemic circuit

• cardiac circuit

• pulmonary circuit

• vascular circuit

Which of the following is NOT true of the heart's functions?

• Keeps blood flowing in one direction.

• Circulates blood based on the needs of the body.

• Mixes oxygen poor and oxygen rich blood.

• Creates blood pressure.

The heart secretes the hormone _____ that regulates _______.

• ADH; heart rate

• ADH; blood pressure

• ANH; heart rate

• ANH; blood pressure

Identify the outermost layer of the pericardial membranes.

• fibrous pericardium

• parietal pericardium

• visceral pericardium

Identify the thickest layer of the heart wall.

• endocardium

• epicardium

• myocardium

Place the layers of the heart and the coverings of the heart in order from the innermost layer to the outermost layer.

• 1-4-2-3-5

• 1-4-2-5-3

• 2-3-1-4-5

• 3-1-4-2-5

The visceral serous pericardium is also known as the:

• endocardium

• epicardium

• fibrous pericardium

• myocardium

Identify the chamber of the heart with the thickest wall.

• left atrium

• left ventricle

• right atrium

• right ventricle

Identify the vessels that return blood to the right atrium.

• coronary sinus, superior vena cava and inferior vena cava

• coronary sinus and right and left pulmonary veins

• right and left pulmonary arteries

• right and left pulmonary veins

Identify the vessel(s) that return blood to the left atrium.

• coronary sinus, superior vena cava and inferior vena cava

• coronary sinus and right and left pulmonary veins

• pulmonary trunk

• right and left pulmonary veins