View
222
Download
0
Category
Tags:
Preview:
Citation preview
Respiratory System
Respiratory System
Obtain oxygen and remove carbon dioxide Regulates water and air temp Produce vocal sounds Regulates blood pH level
Diaphragm
Large muscle in your chest cavity that contracts and relaxes
Acts like a vacuum, pulls air in and pushes it out
Breathing Mechanisms
Inspiration Process of inhaling
and breathing in air Diaphragm
contracts, causing air to flow into lungs
Breathing Mechanisms
Expiration Process of exhaling
or breathing out air Diaphragm relaxes,
forcing air out of lungs
Organs of Respiratory System
Nose, Nasal Cavity
Pharynx
Larynx
Trachea
Bronchial Tree
Lungs
Nose and Nasal Cavity
Hallowed cavity that allows air to enter/leave
Prevents large particles to enter
Composed of bones Nasal Septum and
Nasal Conchae
Sinuses
Air-filled space within the facial bones of the skull
Mucous lined, helps reduce weight of the skull and affects quality of voice
Pharynx
Aka the throat, passage way for food and for air
Also produces speech sounds
Larynx
Enlargement of muscles and cartilage at the top of the trachea.
Conducts air in and out, prevents foreign objects from entering
Also houses vocal cords
Larynx
Trachea
Windpipe, extends anterior to esophagus toward the bronchi and lungs
Bronchial Tree
Branched airways leading from trachea to air sacs in lungs
Lead to Alveolar Ducts and Alveolar Sacs
Alveolar
Sac like bulbs at the end of brachial branch
Surrounded by blood capillary networks
Gas Diffusion
O2 diffuse out to the capillaries, CO2 diffuse into the alveoli
Flow from High to Low concentrations
Factors that Affect Breathing
Emotions and physical activity can alter normal breathing patterns
Hyperventilation: Rapid and deep breathing, lowers blood CO2 levels
Recommended