Blood and Cardio

Atria contract

• just before diastole
• during diastole
• right after the systole
• during systole

Which of the following contains oxygenated blood in an adult human?

• right atrium
• pulmonary artery
• pulmonary vein
• all of the above

Which of the following is the most muscular chamber in a bird's heart or a mammal's heart?

• right atrium
• left atrium
• left ventricle
• right ventricle

Materials are exchanged between the blood and the surrounding tissues in the

• arteries
• veins
• capillaries
• all of the above

Oxygenated blood leaves the human heart via the

• pulmonary vein
• pulmonary artery
• vena cava
• aorta

Which is the most common type of blood cell in a healthy human?

• erythrocytes
• monocytes
• lymphocytes
• eosinophils

Which of the following is a function of the vertebrate circulatory system?

• temperature regulation
• transport metabolic wastes
• provide immune defense
• all of the answers are correct

The transfer of oxygen to the body's cells takes place in the:

• arteries
• arterioles
• capillaries
• venules

Unidirectional valves that prevent the blood from flowing backward are found in the:

• arteriers
• veins
• capillaries
• all answers are correct

Which one of the following series represents the correct path of blood circulation?A)left atrium, left ventricle, lungs, right atrium, right ventricle, bodyB)right atrium, right ventricle, lungs, left atrium, left ventricle, bodyC)left atrium, left ventricle, right atrium, right ventricle, lungs, bodyD)right atrium, lungs, right ventricle, left atrium, body, left ventricleE)left atrium, lungs, left ventricle, body, right atrium, right ventricle

• left atrium, left ventricle, lungs, right atrium, right ventricle, body
• right atrium, right ventricle, lungs, left atrium, left ventricle, body
• left atrium, left ventricle, right atrium, right ventricle, lungs, body
• right atrium, lungs, right ventricle, left atrium, body, left ventricle