Life Science Body Systems

Which body system is responsible for the exchange of oxygen and carbon dioxide in the body?

• Circulatory system

• Digestive system

• Nervous system

• Respiratory system

What is the main organ of the respiratory system?

• heart

• lungs

• stomach

• brain

What is the process of inhaling and exhaling called?

• respiration

• inhalation

• exhalation

• breathing

What is the purpose of the respiratory system?

• The purpose of the respiratory system is to aid in digestion.

• The purpose of the respiratory system is to facilitate the exchange of oxygen and carbon dioxide between the body and the environment.

• The purpose of the respiratory system is to regulate body temperature.

• The purpose of the respiratory system is to produce mucus.

What are the tiny air sacs in the lungs called?

• bronchioles

• pleura

• alveoli

• capillaries

What is the function of the diaphragm in the respiratory system?

• The diaphragm helps in maintaining balance and posture

• The function of the diaphragm in the respiratory system is to contract and relax, causing the lungs to inhale and exhale air.

• The diaphragm is responsible for producing mucus in the lungs

• The diaphragm helps in digestion

What is the role of the cilia in the respiratory system?

• The cilia in the respiratory system help in the production of mucus.

• The cilia in the respiratory system move mucus and foreign particles out of the airways.

• The cilia in the respiratory system aid in the absorption of oxygen.

• The cilia in the respiratory system filter the air entering the lungs.

What is the function of the epiglottis in the respiratory system?

• The epiglottis is responsible for filtering air in the respiratory system.

• The function of the epiglottis in the respiratory system is to prevent food and liquid from entering the trachea during swallowing.

• The epiglottis helps in the production of oxygen in the respiratory system.

• The function of the epiglottis is to produce mucus in the respiratory system.

What is the purpose of the mucus in the respiratory system?

• To trap and remove foreign particles from the air we breathe.

• To produce sound during speech.

• To provide oxygen to the body.

• To regulate body temperature.

What are the three main parts of the respiratory system?

• The heart, the liver, and the kidneys.

• The eyes, the ears, and the nose.

• The stomach, the intestines, and the pancreas.

• The airway, the lungs, and the muscles of respiration.