Respiration is the sequence that results in the exchange of oxygen and carbon dioxide between the air and the bodys cells. Nerve impulses stimulate the breathing process which moves air through a series of passages in and out of the lungs. Then external respiration takes places this is where an exchange of gases between the lungs and blood take place. Then internal respiration is where the gases exchange between the blood and tissue cells. Then the final step of respiration occurs, this is where the cells utilise the oxygen for what the body requires them to do, this is known as cellular respiration.
The circulatory system is made up of the heart and the blood vessels. This moves the blood throughout the dog’s body. A dogs body has roughly 4-5litres of blood continuously travelling are the circulatory system. All the organs within the circulatory system work together allowing an effective and efficient network for a dog’s body. The dog’s circulatory system contains three distinct parts;
Coronary circulation – the movement of the blood through tissues of the heart.
Systemic circulation – nourishment to all the dogs body tissues
Pulmonary circulation - the movement of the blood from the heart, to the lung and back to the heart again.
All of these systems work independently.
TYPES OF RESPIRATION
There are two types of respiration; anaerobic and aerobic. Aerobic respiration is the respiration in which oxygen is present, in aerobic respiration the food of which contains glucose is completely broken down into carbon dioxide and water by oxidation. Aerobic respiration produces a large amount of energy which then gets stored in the Adenosine triphosphate molecules. Anaerobic respiration is the respiration in the absence of oxygen. This is a form of respiration that takes places in bacteria, yeasts, some prokaryotes and muscle cells. During the process of anaerobic respiration energy, carbon dioxide and lactic acid are produced by the breakdown of...