Many tiny hair-like cilia protrude from the olfactory receptor cell's dendrite into the mucus covering the surface of the olfactory epithelium. The surface of these cilia is covered with olfactory receptors, a type of G protein-coupled receptor.
Respiration -10 to 30. The normal respiratory rate for dogs is 16 to 20 breaths per minute. The normal heartrate is 70 to 160 bpm. Large dogs tend to have slower heart rates so your dog should be in the 70 to 120 bpm range. This varies according to the cardiovascular fitness of the dog, too.
In a resting dog that is not panting, it is 70-180 beats per minute - smaller dogs at the top of the range. This should be accompanied by a respiration (breathing) rate, at rest, of 12-30 breaths per minute, again with smaller dogs on the top of the range. Source(s): worked at a vet's. 4Her4Life Â· 6 years ago.