Respiratory system

• Respiration is the exchange of gasses of organisms in the environment
• Nose is the outer part of the respiratory system. It is the mostly made of cartilage which makes the nose flexible and strong
• Cilia is a part of a nose that is tiny hairs inside the nose. It filters the dust and other particles
• Pharynx also known as throat. It is the common passageway for water and air
• Larynx or voice box, it contains vocal cords. The larynx produces sound when we speak.
• Bronchi are two tubes that branch off from the trachea into the lungs. They carry air to the bronchioles
• Trachea or windpipe, it carries air from the pharynx to the lungs. It has C-shaped rings of cartilage that keep the trachea open during breathing
• Alveoli are small sacs where gas exchange occurs between blood and air
• Diaphragm is a muscle located below the lungs. When it contracts, it pulls downward on the lungs causing them to expand
• Tonsils help to filter out bacteria and other germs to prevent infection in the body
• Larynx or voice box contains two voca cords that vibrate when air by. We convert these vibrations into speech
• Epiglottis is raised when we breath to allow air flow into larynx and lungs and pressed down the opening of the larynx when swallowing food to prevent it from entering
• bronchioles are small branches of bronchi
• Pleura are coating that enclosed the lungs and allows it to slide freely as they expand and contract while breathing
• Diaphragm are dome shaped muscles that controls the breathing
• When we inhale the diagphragm contracts and pulls downward
• When we exhale the diagphragm expands and moves upward