Glaucoma: Increased pressure inside the eye, which can be painful and may lead to blindness.

Globulin: A type of protein in the blood.

Heart: The heart is a pump which circulates blood through an animal's body. The heart has four separate sections called chambers. The heart also has a left side and a right side. The two smaller chambers on the top of the heart are called the left atrium and the right atrium. The two larger, more muscular chambers at the bottom of the heart are called the left ventricle and the right ventricle.

Hormone: A hormone is a chemical which serves as a messenger or as a regulator of a process in the body.

Humerus: The longest bone of the forelimb; it extends from the shoulder to the elbow.

Increased Respiratory Rate: Many things can cause an animal to breath faster than normal. These include excitement, pain, lung diseases such as pneumonia, and heart diseases.

Inflammation: The body's response to an infection. It can result in pain, redness, swelling, heat, or loss of function.

Iris: The colored part of the eye. In the middle of the iris is a black opening called the pupil. Muscles attached to the iris can make the pupil larger or smaller.

Kidney: These organs filter the blood and form urine. They also control the blood levels of some chemicals such as sodium, hydrogen, and potassium.

Large intestine: This structure is also called the colon and is responsible for the formation and storage of feces, and the absorption of water.

Left Atrium: Blood from the lungs that is high in oxygen flows through the pulmonary veins and into the left atrium.

Left Ventricle: The left ventricle receives blood from the left atrium and pumps in into the body through the aorta.

Lens: The part of the eye that serves to focus incoming light on a specific area on the retina.

Lens Luxation: Displacement of the lens out of its normal position in the eye.

Liver: This organ has a variety of functions including digestion, metabolism, and detoxification.

Lungs: The lungs are organs in the chest which serve to add oxygen to and remove carbon dioxide from the blood.