Transport system

How many chambers does the heart have ? 

• 1

• 2

• 3

• 4

The blood supply to the myocardium is the _____

• cardiac cycle

• pulmonary circulation

• coronary circulation

• cardiac output

Structure A represent _____

• Aorta

• Vena cava

• Pulmonary vein

• Pulmonary artery

The right atrium receives blood directly from the superior vena cava, inferior vena cava and thoracic duct

• True

• False

_______ circulation takes blood from the heart to the lungs and back.

• Body

• Systemic

• Pulmonary

• Blood

Which part of the heart pumps deoxygenated (oxygen-poor) blood?

• Top side

• Right side

• Left side

• Bottom side

Which vessels carry blood to the heart?

• Artery

• Vein

• Capillaries

The heart beat is initiated in the ______

• SA node

• bundle of His

• medulla oblongata

• Purkinje tissue

The T wave in the ECG represents _____

• atrial depolarization

• atrial repolarization

• ventricular depolarization

• ventricular repolarization

Surgery on the septum in the lower region of the human heart may cause damage within the septum (bundle of His). Which phase of the cardiac cycle would be directly affected by such damage?

• atrial systole

• ventricular systole

• diastatriole

• atrio-ventricular node stimulation