Respiratory System - Study guide

What is the primary function of the lungs in the respiratory system?

• To pump blood throughout the body

• To exchange oxygen and carbon dioxide

• To digest food

• To filter waste from the blood

The part of the respiratory system also known as the windpipe is (a)   .

• Larynx
• Pharynx
• Trachea
• Bronchi

The structure that acts as the voice box in the respiratory system is the (a)   .

• Alveoli
• Diaphragm
• Larynx
• Pharynx

Explain the difference between respiration and breathing.

• Respiration is the physical act of inhaling and exhaling, while breathing is the chemical process of energy production.

• Breathing is the physical act of inhaling and exhaling, while respiration is the chemical process of energy production.

• Both respiration and breathing refer to the chemical process of energy production.

• Both respiration and breathing refer to the physical act of inhaling and exhaling.

How do the bronchi contribute to the respiratory process?

• They filter dust and other particles from the air.

• They transport air from the trachea to the lungs.

• They exchange gases with the blood.

• They produce sound for speech.

Describe the role of the diaphragm in breathing.

• It filters air entering the lungs.

• It contracts and relaxes to change the pressure in the chest cavity, aiding in inhalation and exhalation.

• It exchanges gases with the blood.

• It produces mucus to trap particles.

Why is the structure of alveoli important for their function in the respiratory system?

• Their thick walls allow for better protection against pathogens.

• Their large surface area and thin walls facilitate efficient gas exchange.

• Their small size helps in filtering dust particles.

• Their rigid structure supports the lungs.

Predict what might happen if the trachea is blocked.

• The person would be unable to produce sound.

• The person would be unable to digest food.

• The person would be unable to breathe, leading to a lack of oxygen in the body.

• The person would be unable to circulate blood.

Analyze how the structure of the pharynx supports its dual role in the respiratory and digestive systems.

• Its location allows it to filter air and food simultaneously.

• Its muscular walls help in swallowing and directing air to the lungs.

• Its rigid structure prevents collapse during breathing.

• Its large size allows it to store air and food temporarily.

Match the following impacts with their corresponding effects on the respiratory system.

• Damage to the alveoli.

• It would cause inefficient gas exchange in the alveoli.

• Damage to the trachea.

• It would prevent the diaphragm from functioning properly.

• Damage to the diaphragm.

• It would lead to difficulty in breathing due to blocked airways.

• Damage to the larynx.

• It would result in the inability to produce sound, affecting speech.