The smaller breeds of dogs tend to have their first estrus cycle at an earlier age, while the large and giant breeds of dogs may not come into heat for the first time until they reach eighteen months to two years of age.strus is the stage of the reproductive cycle in which the dog can become pregnant; sometimes a dog that is in estrus is said to be in heat or in season. On average, puberty or sexual maturity is reached at about 6 months of age, but this can vary by breed.
What is the function of the respiratory mucosa? As with all mucus in the body, its a lubricant to keep the lungs moist, prevents the lung lining from sticking to itself and prevents foreign body's like bacterium and dust fr â¦ om in bedding into the lungs causing infection.pecialized membrane that lines the air distrubution tubes in the respiratory tree. Over 125ml of mucus produced each day forms a mucous blanket over much of the respiratory â¦ mucosa. Mucus serves as an air purification mechanism by trapping inspired irritants such as dust and pollen etc.
The nasal cavity cleans, moisturizes, and warms the air that enters through the nares as well as provides turbulence via the nasal conchae to make sure the air is properly tre â¦ ated before continuing on. Another function of the nasal cavity is to allow sound to resonate when you stimulate your vocal cord.onfidence votes 276. The function of the mucosa is to warm and humidify air entering through the nose as well as to help to filter out unwanted particles in the air.