Human Organ Systems Quiz

What is the basic structural and functional unit of living things?

• System

• Cell

• Tissue

• Organ

Which organ system moves blood, oxygen, nutrients, carbon dioxide, and hormones around the body?

• Excretory System

• Digestive System

• Circulatory System

• Endocrine System

Which organ system breaks down and absorbs food, and removes waste?

• Digestive System

• Circulatory System

• Excretory System

• Endocrine System

Which organ system secretes hormones into the blood to regulate bodily functions?

• Circulatory System

• Digestive System

• Endocrine System

• Excretory System

Which organ system removes wastes such as carbon dioxide, urine, and sweat?

• Digestive System

• Circulatory System

• Endocrine System

• Excretory System

Which organ system protects from pathogens, including bacteria and viruses?

• Muscular System

• Integumentary System

• Immune System

• Lymphatic System

Which organ system protects the outside of the body and regulates body temperature?

• Lymphatic System

• Integumentary System

• Immune System

• Muscular System

Which organ system makes and moves lymph, a clear fluid that contains white blood cells?

• Integumentary System

• Lymphatic System

• Muscular System

• Immune System

Which organ system aids in movement, blood flow, and other bodily functions?

• Skeletal System

• Reproductive System

• Nervous System

• Muscular System

Which organ system sends signals through the body and controls both voluntary and involuntary actions?

• Muscular System

• Nervous System

• Skeletal System

• Reproductive System