Cardiovascular System

Which of the following best describes the main function of the circulatory system?

• To deliver nutrients and other essential materials to cells and remove waste products

• To break down the nutrients found in food so that they can be used by all cells in the body

• To produce the chemical signals that allow parts of the body to communicate over long distances

• To coordinate all other body systems so that they can function together to maintain homeostasis

Sonia is studying where oxygen goes in the body. She investigates how oxygen moves from the bloodstream into the cells. Which structure is Sonia most likely to examine in this work?

• The veins

• The heart

• The capillaries

• The lymph nodes

Which of the following includes two types of cells found in blood?

• Platelets and capillaries

• Red blood cells and antigens

• Red blood cells and capillaries

• White blood cells and platelets

What carries blood to every part of your body?

• Blood vessels

• Organs

• Dendrites

• the heart

The heart has four chambers. The upper chambers are called _______________________.

• Upper and lower atriums

• Upper and lower ventricles

• Right and left atriums

• Right and left ventricles

The heart has four chambers. The lower chambers are called _______________________.

• Upper and lower atriums

• Upper and lower ventricles

• Right and left atriums

• Right and left ventricles

Pulmonary circulation is when blood flows through the ____________ to the _____ and back to the _______.

• Heart, lungs, heart

• Lungs, heart, lungs

• Heart, kidneys, heart

• Lungs, kidneys, heart

These blood vessels carry blood away from the heart.

• Capillaries

• Veins

• Arteries

• Coronary valves

The smallest of all blood vessels are the

• Capillaries

• Veins

• Arteries

• Coronary valves

The leading cause of death, factoring in all age groups, is ____________.

• Diabetes

• Car accidents

• Slip and fall accidents

• Heart disease