Download Respiratory System: Period 7 - Mercer Island School District

Respiratory System: Period 7
Ethan, Katie, Sammy, Kylie
Function of the Respiratory
System
The purpose of the
respiratory system is to take
in oxygen and to distribute it
to the rest of the body. The
respiratory system also
responsible for exhaling
carbon dioxide.
The Main Organs Involved
The main organisms involved in the respiratory system are the
Trachea
Bronchi
Bronchioles
Lungs
Diaphragm
The Process of the Respiratory System
1. Diaphragm brings air in and out of the lungs
2. Air enters lungs, diaphragm contracts
3. Travels down your ribs into the pelvic region, leaving a vacuum for air to fill the
lungs. The air then fills in. This is the process of inhalation.
4. Air travels through the bronchi to air sacs called alveoli
5. Oxygen diffuses into blood stream
6. Blood travels to the heart
7. Gets pumped to the rest of the body
How the respiratory system maintains homeostasis
in the body
The respiratory system helps maintain
homeostasis by regulating the intake of air
into the body and by removing carbon
dioxide from the blood. This then aids the
circulatory system's function and many other
operations in the body. Without these
internal systems being properly balanced it
can lead to a number of issues in the human
body, including death, depending on the
severity of the imbalance.
What causes inhalation to occur
The thoracic diaphragm, located between the thoracic and abdominal cavities, contracts to
create lower pressure within the thoracic cavity. The external intercostal muscles, located
between the ribs, also aid in this process. This low pressure draws air into the lungs due to
higher pressure in the atmosphere.
Disorders & Diseases that Affect the Respiratory
System
Lung Cancer: Uncontrollable cell growth in the lung.
Unwanted cancerous growths keep the lung from
Pulmonary Fibrosis: lung tissue becomes damaged and
scarred. The stiff tissue makes it more difficult for your lungs
to work properly
Chronic Asthma: a lung disease that cause the airways to
narrow and swell. This causes wheezing, chest tightness,
shortness of breath, and coughing.
How the respiratory system interacts with the
circulatory system
The oxygen first enters your lungs and then
into the left side of your heart. It is then
pumped by the heart into your bloodstream.
The circulatory system transports the
carbon dioxide and oxygen inhaled by
the respiratory system.
The nervous system regulates the
amount of carbon dioxide and oxygen
inhaled.
Where the respiratory system interacts with the
circulatory system
The circulatory system consists
of the heart, blood, and blood
vessels.
They interact when the
oxygenated blood flows to the
heart and is then distributed
throughout the body sending
oxygen throughout.
Sources
http://www.livescience.com/22616-respiratory-system.html
http://www.mayoclinic.org/diseases-conditions/pulmonary-fibrosis/basics/definition/CON-20029091
https://www.healthtap.com/topics/what-does-the-respiratory-system-have-to-do-with-homeostasis
http://www.mansfieldct.org/Schools/MMS/staff/gr6sci/Websites/RespiratorySystembyKelseyF.htm
http://www.answers.com/Q/Does_the_circulatory_system_interact_with_the_respiratory_system
http://michnajoanna.weebly.com/respiratory.html