Unit 3: Living Systems Vocabulary Test

What is the function of the respiratory system?

• To help us breathe, bringing in oxygen and getting rid of carbon dioxide

• To move blood through the body

• To support the body and protect organs

• To break down food into nutrients

Which part of the body is known as the voice box?

• Larynx

• Bronchus

• Trachea

• Diaphragm

What is the role of the left ventricle?

• To receive deoxygenated blood from the body

• To pump oxygenated blood to the body

• To pump deoxygenated blood to the lungs

• To receive oxygenated blood from the lungs

What is the largest artery in the body?

• Pulmonary vein

• Tricuspid valve

• Aorta

• Pulmonary artery

What is the function of the alveoli?

• To carry air from the throat to the lungs

• To exchange oxygen with carbon dioxide in the blood

• To carry air into each lung

• To help with breathing by moving up and down

What does the circulatory system do?

• Helps us breathe

• Breaks down food into nutrients

• Moves blood through the body, carrying oxygen and nutrients to cells

• Supports the body and helps us move

What is the primary function of organs in the human body?

• To perform a specific function or related functions
• To store energy for future use
• To produce hormones
• To transport oxygen

Which system is responsible for bringing in oxygen and getting rid of carbon dioxide?

• Respiratory system
• Digestive system
• Skeletal system
• Muscular system

What is the main role of the circulatory system?

• To move blood through the body
• To break down food
• To support the body
• To help with breathing

How does the digestive system contribute to the body's energy needs?

• By breaking down food into nutrients
• By pumping blood
• By protecting organs
• By filtering air