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post in: Beauty, News Date:08 Oct 2017, 10:09 views:1309
Asthma is a problem we tend to see much more often in cats than dogs, with the. Siamese cat being the most prevalent breed. Anyone who has ever had an asthmatic attack has an idea of what these cats go through when they cant get their breath.
Its like trying to breathe with a pillow pressed against your nose and mouth. This disease goes by several names- feline bronchial disease, allergic bronchitis, and allergic airway disease. Graphic photos on infection this page.
A glossary of medical terms will be used in this page: dyspnea- difficult breathing tachypnea- fast respiratory rate pneumothorax- excess air in the thorax bronchi- large breathing tubes in the thorax alveoli- where oxygen goes from lungs asthma to the blood thorax- chest pneumonia- infection in the.
It starts with the trachea (windpipe) and progresses to bronchi and bronchioles, eventually ending at the actual lung tissue called alveoli. It is at the alveoli that oxygen is absorbed by red blood cells on inhalation and carbon dixode is excreted on exhalation. These breathing passages contain smooth muscle that controls their size.
This is the type of muscle that works automatically without you consciously telling it what to do as part of the autonomic nervous system.
VNA page has spinal anatomy to show the nerve pathways that accomplish this. When these muscles are relaxed the air passages and lung tissue are fully open and breathing is effortless. When they contract (called constriction) the airways narrow dramatically and it is difficult for air to make it all the way to the lung tissue where it exchanges oxygen for carbon dioxide.
The size of these breathing passages, especially the bronchioles since they are small in diameter, can have a substantial influence on how much air makes it all the way to the alveoli. These are the lungs taken during a necropsy.
The lungs are sponge-like and have an extensive blood suppy. You can see just a small portion of the blood supply- it is the three vertical and bluish vessels going from the heart to the lungs at the bottom of the picture. Within allergy the actual spongey lungs there is an extensive network of small blood vessels.