also known as the oral cavity surface of teeth/gums teeth in back
TRANSCRIPT
Your Journey Through the Respiratory System
By:Victoria Williams
First Stop: Buccal Cavity
Also known as the oral cavity Surface of teeth/gums Teeth in back
Nasal Cavity
Sensitive Easily irritated If the nasal cavity gets irritated it can
swell and cause blockage to other sinuses
Divided left/right
Maxillary Sinus
Located above the tooth roots Contain nerve and blood vessels When teeth become older these
become larger The maxillary sinus is for drainage
Frontal Sinuses
Located on the dorsal part of the skull Two (one on each side between the
eyes) Drainage into the nostrils
Guttural Pouch
One pouch on each side of the throat Filled with air Horses, mules and donkeys have the
largest pouch known If the pouch becomes infected, deadly
side affects my occur (no cure)
The yellow stands for the two pouches
Pharynx
The soft plate separates the pharynx from the mouth
This flap (soft plate) moves when the horse is swallowing
Its there so that the horse cant inhale anything including air
Larynx
Located between the pharynx and trachea
Another word for the Larynx is the voice box, it allows the horse to whinny and grunt.
Trachea
Contains five pieces of cartilage The trachea carries air to the lungs In an adult horse its about 80 cm in
length Spongy material
Bronchus
Air passageway No gas exchange in this airway
Alveolus
Alveolus is connected to the lungs Thousands of them Dental surgery can easily damage the alveolus Dental surgery
can damage the alveolus by pinching a nerve in the mouth and transferring to the alveolus and permanently damaging it
Lungs
The horses large lungs allow it to cool down faster
300 liters of blood go through the lungs, 10 million air sacs deliver over 70 liters of oxygen per min. to muscles when a horse is at a full out gallop
The lungs are made up of a spongy material
Fun Facts
Horses can only breath through their nostrils
The avg. respiration rate is 15-20 breaths/minute
Works Cited
http://www.ivis.org/proceedings/aaepfocus/2006/tremaine1.pdf
http://www.britannica.com/EBchecked/topic/395124/mouth
http://www.equinekingdom.com/data/education/horse_anatomy/respiratory_system.html
http://en.wikipedia.org/wiki/Respiratory_system_of_the_horse
http://en.mimi.hu/horse/larynx.html http://www.horseandhound.co.uk/horse
care/1370/34656.html