Respiratory system (Powerpoint)

Respiratory System- is the network of organs and tissues that help you breathe.

• helps your body absorb oxygen from the air so your organs can work.
• It also cleans waste gases, such as carbon dioxide, from your blood.
• Common problems include allergies, diseases or infections.

PARTS  of RESPIRATORY SYSTEM

^^Mouth and nose^^: Openings that pull air from outside your body into your respiratory system.

Sinuses: Hollow areas between the bones in your head that help regulate the temperature and humidity of the air you inhale.

Pharynx (throat): Tube that delivers air from your mouth and nose to the trachea (windpipe).

Trachea: Passage connecting your throat and lungs.

Bronchial tubes: Tubes at the bottom of your windpipe that connect into each lung.

Lungs: Two organs that remove oxygen from the air and pass it into your blood.

Diaphragm: Muscle that helps your lungs pull in air and push it out.

Ribs: Bones that surround and protect your lungs and heart.

Alveoli: Tiny air sacs in the lungs where the exchange of oxygen and carbon dioxide takes place.

Bronchioles: Small branches of the bronchial tubes that lead to the alveoli.

Lung lobes: Sections of the lungs — three lobes in the right lung ^^and^^ two in the left lung.

Pleura: Thin sacs that surround each lung lobe and separate your lungs from the chest wall.

Cilia: Tiny hairs that move in a wave-like motion to filter dust and other irritants out of your airways.

Epiglottis: Tissue flap at the entrance to the trachea that closes when you swallow to keep food and liquids out of your airway.

Larynx (voice box): Hollow organ that allows you to talk and make sounds when air moves in and out.