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The Horse's Respiratory System

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Madeline Kieren

on 23 June 2015

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Transcript of The Horse's Respiratory System

The Horse's Respiratory System
Function of the Respiratory System
The primary function of the respiratory system is to supply the blood with oxygen in order for the blood to deliver oxygen to all parts of the body.

Parts of the Respiratory System
Lungs - Essential respiration organ. Main function is to transport oxygen from the atmosphere into the bloodstream.

Trachea - A tube that connects the pharynx and larynx to the lungs, allowing a passage of air.
Intro to the Respiratory System
We all know the horse is a great athlete.This is due in part to its unique musculo-skeletal system, but also to its highly efficient respiratory system.

Diagram of the Respiratory System
General Information
The oxygen from the atmosphere is used to fuel the horse's powerful muscles. It is captured by its lungs and is transferrred to the horse's blood stream where is it used to create energy.
General Information, cont.
The Respiratory System of the horse is well adapted to athletic exercise with unrestricted upper airway diameters and a very large lung capacity .
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general Information
The horses respiratory system is made up of the upper and lower airways.The upper airway contains the nasal passage, pharynx, larynx,and trachea.
The lower airway has the lungs.
general Information, cont.
The essential organs of respiration are the horses lungs. However, to reach the lungs, air must pass through the nose, pharynx, larynx, and trachea (the wind pipe) before reaching the lungs.
General Information, cont.
Air cannot enter the mouth to reach the trachea because the soft palate blocks the air flow-- "the nose is for breathing, the mouth is for eating.
General Information, cont.
Airflow velocities in an excercising horse: 64-79

Airflow velocities in an
excercising human: 4

General Information, cont.
-The upper and lower airways can be considered a specialized passageway for the air to travel to and from the lungs.
-Respiratory disease is responsible for over 20% of a horse's lost training days.
General Info, cont.
Volumes of up to 300 liters of blood are pumped at a high pressure through small lung capillaries surrounding 10 million air sacs to take up and deliver over 70 liters of oxygen per minute.
general Info, cont.
A horse excercising at top speed can breathe more than twice per second, taking in up to 12 liters of air in each inhalation.

Pharynx - Filters, warms and moistens air and conducts it to the lungs.
Larynx - Often called the "voice box". It allows sound production and houses the
horse's vocal cords.
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