A sheep has so much fat around it's heart to protect the valves in  the heart. There is also a lot of fat there to maintain the body  temperature of the heart.
Definition and Causes. Upper respiratory tract infection (URI) is a nonspecific term used to describe acute infections involving the nose, paranasal sinuses, pharynx, larynx, trachea, and bronchi.The prototype is the illness known as the common cold, which is discussed here, in addition to pharyngitis, sinusitis, and tracheobronchitis.efinition and Causes. Upper respiratory tract infection (URI) is a nonspecific term used to describe acute infections involving the nose, paranasal sinuses, pharynx, larynx, trachea, and bronchi.
Pneumonia is a respiratory condition in which there is infection of the lung. Upper respiratory tract infections are the illnesses caused by an acute infection which involves â¦ the upper respiratory tract: nose, sinuses, pharynx or larynx.f you feel that you have an upper respiratory infection you should remember to drink plenty of fluids â¦ and eat chicken noodle soup. An upper respitory infection is a viral infection that has noticable signs of runny nose, coughing, and fever.