RESPIRATORY SYSTEMRESPIRATORY SYSTEM

Prepared by:MARICARR D. ALEGRE

RESPIRATION• a life process common to both plants and animals

• There is an exchange of oxygen and carbon dioxide

RESPIRATORY SYSTEM

Phases of Respiration

•External Respiration–Exchange of gases between the atmosphere and the blood

• This involves the lungs

Phases of Respiration

Internal RespirationExchange of gas between the blood and the body tissues

Breathing-a mechanical process that helps get air into and out of the lungs

STAGES

1. INSPIRATION –intake of air

2. EXPIRATION – breathing out of air

PARTS OF THE RESPIRATORY• Nasal cavity

• Larynx• Trachea

• Bronchial tubes• Lungs (bronchioles and

alveoli)

NOSE

NOSE•

Serves as the entrance to your nasal cavity

•Inside the nasal cavities are cilia which

filters the air and trap the any

microorganisms

•A ciliated mucous membrane is also found

in the lining of the nasal cavity

NASAL CAVITY

LARYNX

LARYNX• Also called Adams apple or

vocal cords• Passage way of air we breath

• It is protected by a muscle known as epiglottis

TRACHEA

TRACHEA• Also called as the windpipe• Lined with cilia and fluid that

traps germs and other materials from the air

• Cilia also traps dust and dirt upward away from the lungs

LUNGS

LUNGS• located on each side of the

chest• They are separated by your

heart, blood vessels and your esophagus

• Serves as an organ for breathing

BRONCHIAL TUBES• Branches of

the trachea that is embedded in the lungs

BRONCHIOLES

Small branches of bronchi

ALVEOLI• Also known

as the air sacs

• It is where the exchange of gases happen