EXERCISES, LESSON 2
REQUIREMENT: The following exercises are to be answered by marking the lettered
response that best answers the question; or by completing the incomplete statement; or
by writing the answer in the space provided at the end of the question.
After you have completed all the exercises, turn to "Solutions to Exercises," at
the end of the lesson, and check your answers with the solutions.
Which of the following statements best explain the need for circulatory
To protect the body from invading bacteria.
To get food and oxygen to the cells.
To remove waste products from the cells.
To provide a means of cell reproduction.
Which of the following are circulatory systems in the human body?
The sinoatrial system.
The lymphatic system.
The diastolic system.
The cardiovascular system.
Capillaries are best described as ___________________
Vehicles for nutrients, oxygen, and wastes.
Very large conduits or channels through which the blood is moved.
Very small vessels that provide exchange areas.
d. The component of the cardiovascular system that serves as the
primary motive force of blood movement.