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A CT scan showing evidence of the nasal cycle: the more patent airway is on the right of the image, the swollen turbinates congesting the left. The nasal cycle is the subconscious [1] [2] alternating partial congestion and decongestion of the nasal cavities in humans and other animals. This results in greater airflow through one nostril with ...
The dog's footpad is a fatty tissue locomotive-supporting organ, present at the bottom of the four legs, consisting of digital pads, a metacarpal pad, and a carpal pad, with dewclaw near the footpad. [26] When a dog's footpad is exposed to the cold, heat loss is prevented by an adaptation of the blood system that recirculates heat back into the ...
In humans, the nasal cycle is the normal ultradian cycle of each nostril's blood vessels becoming engorged in swelling, then shrinking. The nostrils are separated by the septum. The septum can sometimes be deviated, causing one nostril to appear larger than the other. With extreme damage to the septum and columella, the two nostrils are no ...
The occiput in dog terms is the bump or protuberance clearly seen at the back of the skull in some breeds like the English Setter and Bloodhound. However, in other breeds it is barely perceptible. Myths in dog folklore believed that size of the occipital protuberance was somehow a measure of the dog's sense of smell.
Some animals are obligate nasal breathers, wherein the only air for respiration must arrive into the lungs via the nose. This includes rats and mice. This includes rats and mice. Thus, in these animals the distinction between a breath and a sniff is not clear and could be argued to be indistinguishable. [ 18 ] (
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The respiratory system (also respiratory apparatus, ventilatory system) is a biological system consisting of specific organs and structures used for gas exchange in animals and plants. The anatomy and physiology that make this happen varies greatly, depending on the size of the organism, the environment in which it lives and its evolutionary ...