Physiology. Amylase is a calcium dependent enzyme which hydrolyzes complex carbohydrates at alpha 1,4-linkages to form maltose and glucose. Amylase is filtered by renal tubules and resorbed (inactivated) by tubular epithelium. Active enzyme does not appear in urine.
The prostate is an accessory sex gland that surrounds the urethra and neck of a male dog's bladder. The prostate gland produces a fluid that helps nourish and transport sperm. Benign prostatic hyperplasia is a condition in which the prostate gland is enlarged. The word hyperplasia means increased in size.
In females, the urethra ends in the vagina and in males, the urethra terminates at the tip of the penis. A bone, called the os penis, is located in the penis in male dogs, which narrows the diameter of the urethra. As a result, even small stones can become lodged in the urethra at the level of the os penis.