Sigmoidoscopy. A sigmoidoscopy is a diagnostic procedure that allows the doctor to examine the inside of a portion of the large intestine, and is helpful in identifying the causes of diarrhea, abdominal pain, constipation, abnormal growths, and bleeding.
By MeLoveMyPet on in Medium Dog Breeds. There are big dogs and small dogs, and of course, there are the medium dogs. Dogs classified as medium are just about in the middle in terms of size and weight, defined to be between 13 to 24 inches, and around 20 to 60 pounds.
Collie. The Collie is a medium-size dog breed weighing between 50 and 70 pounds. It has a lean head and a chiseled face and the muzzle is smooth and well-rounded. The ears are upright and the eyes are dark (with the exception of blue merles). The body is longer than it is tall and is lean and muscular and the chest is strong.