Grade 10 Respiratory System Diagram

Questions and Answers

What is the nasal cavity?

The nasal cavity (nose) is an entrance for air to go into the respiratory system, and the hairs in the nose are part of the air-cleansing system.

What is the oral cavity?

The oral cavity (mouth) is another entrance to the respiratory system.

What is the function of the pharynx?

The pharynx (throat) collects the air from the nose and passes it into the trachea (windpipe).

What is the role of the epiglottis?

The epiglottis is a flap of tissue that closes when swallowing to guard the entrance to the trachea. Signup and view all the answers

Describe the trachea.

The trachea is the passage from the pharynx to the lungs. Signup and view all the answers

What happens to the trachea in relation to the bronchus?

The trachea divides into the two main bronchus, one for each lung. Signup and view all the answers

What are alveoli?

Alveoli are very small air sacs at the end of the bronchioles that are the destination of air breathed in. Signup and view all the answers

What is the function of bronchial tubes?

The bronchial tubes are lined with cilia that carry mucus upward and out into the throat. Signup and view all the answers

Study Notes

Respiratory System Components

Nasal Cavity: Serves as the primary entry point for air; contains hairs that function in cleansing inhaled air.
Oral Cavity: Functions as an alternative entry for air; commonly used during breathing, especially when nasal passages are obstructed.
Pharynx: The throat area that facilitates the movement of air collected from the nasal cavity to the trachea.
Epiglottis: A protective flap that closes over the trachea during swallowing, directing food and liquid into the esophagus, preventing aspiration into the airway.
Trachea: The windpipe that connects the pharynx to the lungs; it is the main passageway for air entering the respiratory system.
Bronchus: The trachea bifurcates into two main bronchi, serving each lung; the right lung contains three lobes, whereas the left lung has two lobes.
Alveoli: Tiny air sacs at the terminus of bronchioles where gases are exchanged; surrounded by capillaries where carbon dioxide is released from blood and oxygen is absorbed.
Bronchial Tubes: Contain cilia that perform a sweeping motion to transport mucus, along with trapped dust and pathogens, out of the lungs to ensure a clear airway; promotes respiratory health by preventing contamination.

Description

Test your knowledge of the respiratory system with this Grade 10 quiz covering key terms and definitions. Understand the functions of various parts like the nasal cavity, oral cavity, and pharynx, and their roles in air passage. Perfect for reinforcing your anatomy studies!