Grade 12 Human Body Systems Worksheet

Grade 12 Human Body Systems Worksheet

Read each question carefully and answer to the best of your ability. Use complete sentences for short answer questions.

1. Which of the following is the primary function of the lymphatic system?

2. Which part of the brain is responsible for coordinating voluntary movements and maintaining balance?

1. The   system is responsible for the transport of oxygen, nutrients, and hormones throughout the body.

2. The functional unit of the kidney is the  , which filters waste products from the blood.

3. Muscle contractions are initiated by signals from the nervous system, specifically from motor  .

1. The diaphragm contracts during exhalation to push air out of the lungs.

2. The primary role of red blood cells is to fight infections.

1. Briefly describe the main components and function of the central nervous system.

2. Explain the process of gas exchange in the alveoli of the lungs.

Match each organ with its primary body system.