Directions: Read and answer the questions carefully. Encircle the letter of your answer.


1. Which of the following are the component parts of the circulatory system?


A. Blood, blood vessels, lungs

B. Blood, blood vessels, heart

C. Blood, alveoli heart, lungs

D. Blood vessels, lungs, nasal cavity


2. Which body system or network of organs and tissues works directly with the circulatory system to provide oxygen to the body.


A. Digestive

B. Muscular

C. Respiratory

D. Skeletal


3. What does your heart do for your body?


A. It pumps the blood to move all through your body.


B. Carries the blood throughout the body


C. Absorbs oxygen from the air and transfers it to all parts of the body.


D. It is necessary for cell growth and energy.


4. Which of the following best describes a systemic circuit?


A. It transports oxygenated blood to virtually all of the tissues of the body and returns relatively deoxygenated blood and carbon dioxide to the heart.


B.It tranports blood to and from the lungs,where it picks up oxygen and delivers carbon dioxide for exhalation


C.It turns your food into nutrients and energy you need to survive.


D.It gives the body its shape, allows movement,makes blood cells,provide protection for organs and store minerals.


5.How do circulatory and respiratory system is work together?


A.The respiratory system is responsible for transporting air to and from the lungs, and facilitates gas exchange with the capillaries of the circulatory system.


B.The circulatory system is responsible for transporting blood,oxygen,nutrients, and wastes throughout the body


C.The circulatory and respiratory systems work together through absorbing oxygen from the air and transferring it to all parts of the body while absorbing carbon dioxide from the body and releasing it into the air.


D. all of the above.​