Cardiovascular / Circulatory System, Day 2

How does the heart pump blood? Select all that are true.

• Creating high pressure to bring blood in

• Creating high pressure to pump blood out

• Making low pressure to bring blood in

• Making low pressure to pump blood out

What is the structure that surrounds the heart?

• pericardium, a single-layered membrane

• pleura, a double-layered sheet of tissue

• pericardium, a double-layered membrane

• peritoneum

What is NOT a part of the heart?

• Atria

• Ventricles

• Septum

• Alveoli

What is TRUE about the atria and ventricles?

• The atria receive blood from the rest of the body

• The ventricles push blood out of the heart

• Atria and ventricles are separated by valves that prevent blood from flowing backward

• All of the above are true

What is the CORRECT path of oxygenated blood through the heart FROM the lungs?

• aorta -> left atrium -> left ventricle -> pulmonary veins -> rest of the body

• pulmonary veins -> left atrium -> left ventricle -> aorta -> rest of the body

• pulmonary veins -> left ventricle -> left atrium -> aorta -> rest of the body

• aorta -> left ventricle -> left atrium -> pulmonary veins -> rest of the body

What is the CORRECT path of deoxygenated blood through the heart FROM the body?

• pulmonary artery -> right atrium -> right ventricle -> superior/inferior vena cava -> lungs

• pulmonary artery -> right ventricle -> right atrium -> superior/inferior vena cava -> lungs

• superior/inferior vena cava -> right atrium -> right ventricle -> pulmonary artery -> lungs

• superior/inferior vena cava -> right ventricle -> right atrium -> pulmonary artery -> lungs

What does the top number in a blood pressure measurement represent?

• the pressure that your arteries experience when your ventricles contract

• the pressure that your arteries experience when your ventricles are relaxed

What are the functions of the blood vessels? Select all that are TRUE.

• help maintain blood pressure

• deliver oxygen and nutrients to cells and tissues

• create white blood cells to fight infection

• remove waste products

What is NOT a layer of a blood vessel?

• tunica externa

• tunica intima

• tunica dura

• tunica media

What is NOT correct about the tissue of the blood vessels?

• The tunica intima is made up of simple squamous epithelium

• The tunica media is made up of smooth muscle cells

• The tunica externa is made up mostly of collagen

• The tunica externa is thin to allow blood to move through easily