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Breathing rate

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by

Amelia Powell

on 16 October 2013

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Transcript of Breathing rate

Breathing Rate
Breathing rate
This Prezi is going to tell you about all different types of information about Homeostasis and Different roles in the body about breathing rate and what happens.
Homeostasis
It is a chemical hormone which is released in the body to maintain the body's temperature, Glucose levels. This is so that cells do not denature.
This is important because if our body was not kept at the right temperature, we could be come very ill quickly if the temperature was to cold and get hypothermia.
Role of Internal Receptors
Internal sectors measure the amount of carbon dioxide in the blood.
The Internal sectors information is relayed and processed by the medulla, this is in the respiratory centre in the brain.
Role of the Autonomic Nervous System
Autonomic Nervous System controls the bodies internal environment.
This helps control heart rate, blood pressure,digestion, respiration and the pH in blood and many other bodily functions.
Two of the nerves are between the central nervous system and the end organ.
Two divisions of the Autonomic Nervous System differ in anatomy and function.

Role of diaphragm and intercostal muscles
The diaphragm is located between the chest cavity and the abdomen. It plays an important role in our breathing process as it is key to movement of our lungs for respiration. There is an actual seal between cavities. When relaxation and contraction of the diaphragm causes pressure changes in the pleural cavity. When the diaphragm contracts, it causes an increase in pressure in the pleural cavity, which causes a person to exhale. When the diaphragm relaxes, air is drawn into our lungs due to a decrease in pressure. So the diaphragm is the key muscle that allows us to breathe, although there are accessory muscles involved as well.

During inspiration (breathing in) our external intercostal muscle contract and the internal intercostal muscle relax together with the movement of ribs and the thorax, this increases the volume of the thoracic cavity. Air pressure in our lung decrease as the volume increases. Atmospheric pressure is now higher than the pressure in the lungs and air is rushed into the lungs.
Effects of adrenaline when breathing
The more air we breath in, the blood flow increases due to the oxygen which is absorbed into the blood and carbon dioxide is disposed of. Adrenaline is a hormone, speeds up your heart rate, increases your energy supplies (glucose) and raises your blood pressure.

Adrenaline binds to receptors on the heart, arteries, muscles and fatty tissue. By binding to receptors on the heart and arteries, adrenaline increases heart rate and respiration and use it for fuel during adrenaline release.
Everything happens so fast during an adrenaline rush, your breathing and your heart rate will increase suddenly, this is called an adrenaline rush.
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