Respiratory System Anatomy

Front

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

Back

The diaphragm is a muscle that separates the thoracic cavity from the abdominal cavity and plays a crucial role in breathing by contracting and relaxing to allow air to flow in and out of the lungs.

Front

What is the primary function of the nasal cavity?

Back

The nasal cavity's primary function is to moisten, filter, and warm the air we breathe before it enters the lungs.

Front

What structures are included in the upper respiratory tract?

Back

The upper respiratory tract includes the nose, nasal cavity, sinuses, and pharynx.

Front

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

Back

The trachea, or windpipe, serves as the main airway that conducts air from the larynx to the bronchi and into the lungs.

Front

What are bronchi and their function?

Back

Bronchi are the two main branches of the trachea that lead into each lung, allowing air to enter and exit the lungs.

Front

What is the significance of alveoli in the respiratory system?

Back

Alveoli are tiny air sacs in the lungs where gas exchange occurs; they allow oxygen to enter the blood and carbon dioxide to be expelled.

Front

What is the role of mucous membranes in the nasal cavity?

Back

Mucous membranes in the nasal cavity help to trap dust, pathogens, and other particles, filtering the air we breathe.

Front

How does the respiratory system contribute to homeostasis?

Back

The respiratory system helps maintain homeostasis by regulating the levels of oxygen and carbon dioxide in the blood.

Front

What is the function of the larynx?

Back

The larynx, or voice box, is responsible for sound production and also protects the trachea against food aspiration.

Front

What is the difference between the right and left lungs?

Back

The right lung has three lobes, while the left lung has two lobes to accommodate the heart.