HUMAN RESPIRATORY SYSTEM

Block #1January 14, 2015

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WHAT IS THE RESPIRATORY SYSTEM?

The part of the body that supplies blood to oxygen in order to deliver it to the cells.

Respiration(Merriam-Webster)

› “physical and chemical processes by which an organism supplies its cells and tissues with the oxygen needed for metabolism and relieves them of the carbon dioxide formed in energy – producing reactions”

› Intake of oxygen and release of carbon dioxide

MAIN ORGAN

Lungs› The lungs allow the body to inhale oxygen

and exhale carbon dioxide. This is called breathing.

Red blood cells› Responsible for taking the oxygen and

distributing it through the rest of the body. Then they pick up carbon dioxide and take it back to the lungs as waste.

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AIR FLOW PASSAGEWAY

Pharynx› Also known as the throat› Permits the passage of swallowed solids and

conducts air to the trachea Larynx

› Also known as the voice box› Holds the vocal cords for speaking

Trachea› Also known as the windpipe› Filters air and branches into the bronchi

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AIR FLOW PASSAGEWAY

Bronchi› Two air tubes that carry air to lungs› Divide into smaller bronchi called

bronchioles Bronchioles

› Lead to the alveoli Alveoli

› Tiny sacs in the lungs› Where the oxygen enters the blood and

carbon dioxide exits

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AIR FLOW PASSAGEWAY

Lungs› Help oxygen to enter red blood cells

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OTHER IMPORTANT PARTS

Diaphragm› Dome – shaped muscle at the bottom of

the lungs› Enlarges the space for the lungs to expand

during breathingMicrosoft Clip Art

FREQUENTLY ASKED QUESTIONS

WHY DO WE YAWN?

When we become drowsy we tend to not to take in enough air.

The brain sends a signal to the lungs to take a long deep breath also known as a yawn.

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WHY DO WE SNEEZE?

Sneezing is like an upper breathing cough.

When we cough, we force particles out from the throat up.

When sneezing, we force particles up from the nose.

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WHY DO WE HICCUP?

Hiccups are sudden involuntary movement of the diaphragm.

When eating too fast, the diaphragm may react in a jumping way causing hiccups.

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BRONCHITIS

Respiratory disease that cause the bronchial tubes to swell.

One that has it may experience:› Coughing of discolored thick mucus› Difficulty breathing

Mainly cause by:› Smoking› Continuous breath in unclear air

Many may use:› Inhaled bronchodilator› Cough syrup

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PNEUMONIA

An infection that occurs in the lungs. One that has it may experience:

› Coughing› Fevering› Difficulty breathing

Mainly caused by:› Contagious infected people› Improper care during the flu or a cold

Many may use:› Cold and flu medicine› Doctor prescribed medicine

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ASTHMA

Lung disease that narrows airways One that has it may experience:

› Shortness of breath› Chest tightness

Mainly caused by:› Increased activity› Smoke

Many may use:› An inhaler› A breathing machine Microsoft Clip Art

CONCLUSION

By completing this project, I was able to fully understand what goes on in the respiratory system. I didn’t really learn much as I had already begin to learn about it in Health class last year. I think this information become beneficial when I begin to study medicine and anatomy. I’m sure I will to know things like what I found through my research.

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WORKS CITED

www.mayoclinic.org/diseases-conditions/bronchitis/defintion/con-20014956

www.webmd.com/lung/tc/pneumonia-topic-overview http://learn.fi.edu/learn/heart/systems/respiration.html www.patient.co.uk/health/the-lungs-and-respiratory-tract www.britannica.com/EBchecked/topic/1081754human-digestive-system/4

5316/Pharynx www.medicinenet.com www.nhlbi.nih.gov/health-topics/topics/asthma