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Catherine Dela Cruz, Period 2 Respiratory System - Coggle Diagram
Catherine Dela Cruz, Period 2
Respiratory System
major functions of the respiratory system
Supply oxygen to body cells
Remove carbon dioxide from the cells
Produce the sounds associated with speec
Upper respiratory structures and functions
Nose.
Mouth.
Throat (pharynx)
Voice box (larynx)
Windpipe (trachea)
functions
clean, humidity, and warm the incoming air
provide a route for air to move between the outside atmosphere and the lungs
no gas exchange occurs in these organs.
Lower respiratory structures and functions
Airways (bronchi)
blood vessels
functions
the network of organs and tissues that help you breathe
These parts work together to move oxygen throughout the body and clean out waste gases like carbon dioxide.
Layers of the pleurae
s two thin layers of tissue that protect and cushion the lungs
The inner layer (visceral pleura)
wraps around the lungs and is stuck so tightly to the lungs that it cannot be peeled off
The outer layer (parietal pleura)
lines the inside of the chest wall.
the mechanism of inspiration and expiration
Inspiration
occurs when the diaphragm and the external intercostal muscles contract.
Expiration
occurs when the diaphragm and the intercostal muscles relax.
Volume and Pressure relationships in thoracic cavity
Lung volume expands because the diaphragm contracts and the intercostal muscles contract, expanding the thoracic cavity.
increase in the volume of the thoracic cavity lowers pressure compared to the atmosphere, so air rushes into the lungs, thus increasing its volume.
Respiratory volumes and capacities
Respiratory capacity (pulmonary capacity)
the sum of two or more volumes.
Factors such as age, sex, body build, and physical conditioning have an influence on lung volumes and capacities.
Lungs usually reach their maximum capacity in early adulthood and decline with age after that.
Internal vs. external respiration
External respiration
breathing
involves both bringing air into the lungs (inhalation) and releasing air to the atmosphere (exhalation)
internal respiration
oxygen and carbon dioxide are exchanged between the cells and blood vessels.
Disorders of the respiratory system
Asthma
chronic obstructive
pulmonary disease (COPD)
pulmonary fibrosis
Pneumonia
lung cancer (Also called lung disorder and pulmonary disease)