Respiratory System Concepts

The video tutorial explains the respiratory system, focusing on the lungs, diaphragm, and air passage. It covers the process of gas exchange and respiration, highlighting the importance of oxygen for survival. The tutorial also includes fun facts and a review of key points.

What is the primary function of the respiratory system?

• To produce hormones

• To digest food

• To circulate blood

• To bring oxygen into the body

Which organ is unique for its ability to float on water?

• Lungs

• Heart

• Kidneys

• Liver

Why is the left lung smaller than the right lung?

• To improve breathing efficiency

• To balance body weight

• To make room for the heart

• To accommodate the liver

What muscle assists the lungs in the breathing process?

• Trapezius

• Diaphragm

• Biceps

• Quadriceps

What causes hiccups according to the video?

• Sudden movements of the diaphragm

• Excessive talking

• Lack of sleep

• Eating spicy food

What is the role of cilia in the respiratory system?

• To produce mucus

• To filter air and remove unwanted substances

• To absorb oxygen

• To transport nutrients

What is the function of the epiglottis?

• To prevent food from entering the lungs

• To absorb oxygen

• To filter air

• To produce sound

Where does the exchange of oxygen and carbon dioxide occur?

• In the trachea

• In the alveoli

• In the bronchi

• In the diaphragm

What process is responsible for the production of carbon dioxide in cells?

• Diffusion

• Respiration

• Photosynthesis

• Osmosis

How many alveoli are there in a person's lungs?

• 600 million

• 60,000

• 6,000

• 600