Circulatory System

The type of blood vessel that carries blood back to the heart from body cells?

• arteries

• capillaries

• veins

The type of blood vessel that normally carries oxygenated blood from the heart to the body cells?

• pulmonary arteries

• pulmonary capillaries

• pulmonary veins

Name part N.

• Right atrium

• left atrium

• right ventricle

• left ventricle

Name part I.

• pericardium

• mediastinum

• septum

• unknownum

Name part A.

• Pulmonary artery

• Pulmonary vein

• Superior vena cava

• Aorta

Name part B.

• Pulmonary arteries

• Pulmonary veins

• Superior Vena cava

• Aorta

Name part M.

• Tricuspid valve

• Semilunar valve

• Bicuspid valve

• Mitral valve

The heart has ___ chambers.

• 1
• 2
• 3
• 4

Thin-walled vessels that allow for the exchange of O_{2 ,} CO₂, nutrients and wastes between blood cells or air sacs in the lungs

• Arteries
• Veins
• Capillaries

What function does the heart do?

• Protects organs and produces red blood cells.
• Generates heat.
• Breaks down food into nutrients.
• The heart is a pump, which moves the blood. The arteries and veins are the pipes where the blood flows.