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.
Dogs at rest have a normal respiration rate of 10 to 35 breaths per minute. Practice checking your dogâs respiration rate at home, when you and your dog are both relaxed, so youâll recognize quickly when something is wrong. I always tell folks to watch and listen to their pets every day.