Science for Active Learning 6 | 4th Edition - 5.1 Respiratory System

Breathing

Is a process that allows your body to take an oxygen and release carbon dioxide.

Cilia

Hair-like structures in the nasal cavity that filter dust and pathogens.

Pharynx

Muscular tube in which food water and air pass through.

Epiglottis

A flap of tissue that prevents food and water from entering the larynx.

Larynx

Commonly called the voice box and has two vocal cords that vibrate when air pass by them.

Trachea

Is a hollow muscular, tubular structure, located below the larynx; Also called the windpipe.

Bronchi

Transports air to and from the lungs.

Cartilage

Prevent the bronchi from collapsing.

Mucosal Lining

Produces mucus that traps foreign particles.

Alveoli

Tiny air sacs where gas exchange occurs.

Capillaries

Small blood vessels that surround the alveoli.

Lungs

The main organs of the respiratory system.

Pleura

The membrane that protects the lungs.

Inhalation and Exhalation

The phases of respiration.

Inhalation

Happens when oxygen enters the lungs.

Exhalation

During _________ Air is forced out of the lungs.

Asthma

Condition when a person experienced difficulty in breathing.

Pneumonia

Is the infection of the lungs caused by viruses or bacteria.

Tuberculosis

Is a bacterial infection of the lungs caused by Mycobacterium.

Bronchitis

refers to the inflammation or swelling of the bronchial tube lining.

Pharyngitis

Is the inflammation of the pharynx.

Emphysema

Damages the air sacks or alveoli in the lungs.

Smoking

Is the leading cause of Emphysema.