Here is a list of organs used in the lesson and their functions. For a printable version, click HERE and then use your browser's print function. Then use the back function of your browser to get back to this page.

Digestive System:

1. diaphragm - The muscle which expands and contracts in order to allow the cat to breathe.
2. gallbladder - The gallbladder stores bile until it is needed by the small intestine in order to digest fats. The gallbladder is not essential to the process of digestion. It is possible for bile to be delivered directly from the liver to the small intestine. Bile digests and absorbs fat and helps to dispose of waste from the cat's body.
3. liver - The liver produces many enzymes in order to digest food. It manufactures bile, which is then stored in the gall bladder. Bile contains acids as well as cholesterol. The liver also stores and releases a compound called glycogen, which is a carbohydrate that can be changed into sugar should the sugar level of the cat fall.
4. pancreas - The pancreas secretes two compounds. The first compound is a digestive enzyme that helps break down fats and proteins. The second compound is insulin, which regulates the sugar level in the cat's body.
5. peritoneum - The peritoneum is the thin membrane that covers the abdominal digestive organs of the cat.
6. small intestine - The small intestine carries out the final stages in digestion. It is lined with small hairs and blood vessels inside the intestine carry away nutrients to other parts of the cat's body. The small intestine has three sections: the duodenum, the jejunum, and the ileum. The duodenum is the section where the process of absorption begins. The jejunum is the largest portion of the small intestine and it is here where most of the absorption takes place. The ileum is the final section of the intestine and it is where the absorption process ends.
7. spleen - The spleen produces red blood cells and regulates the supply of red blood cells. It also functions as a storage area for blood.
8. stomach - The stomach stores food while it goes through the initial phases of digestion.

Uro-genital System:

1. uterine horn -.The uterine horn is a coiled tube that leads from the ostium to the uterus.
2. kidney - The kidneys filter waste and excess sodium from the cat's body.
3. ovary - The ovaries in a female cat store eggs which are released into the fallopian tubes for delivery into the uterus.
4. urinary bladder - The urinary bladder collects urine for removal from the body. It can expand to accommodate large amounts of urine.
5. urethra - In both sexes, the urethra is a tube attached to the urinary bladder. The urethra is the organ that transports urine from the bladder to the external environment.
6. uterus - The uterus is the organ in which fetuses form and develop. The uterus receives eggs from the ovaries and contains the egg until it is reached by the sperm.
7. - The serves as the passageway by which babies are delivered. The is a muscular passageway that is also an important part of conception. During conception, the male cat inserts his penis into the and releases sperm, which fertilizes the egg and produces a fetus.
   

1. pharynx - The pharynx, also called the throat, is the place where air enters the respiratory system after entering the nose or mouth.
2. lungs - The lungs provide oxygen to the blood and remove carbon dioxide from the blood. The lungs are positioned on top of the diaphragm so that the diaphragm can control the breathing of the cat by expanding and contracting.
3. bronchial tubes - The bronchial tubes are a pair of tubes that connect the trachea to the two lungs. The bronchial tubes branch out at the lungs into smaller tubes called bronchi and then into much smaller tubes called bronchioles, which contain small air sacs that function as the exchange points for the two gases oxygen and carbon dioxide.
4. trachea - The trachea is the tube that transports oxygen into the bronchial tubes for delivery into the lungs. The trachea is also referred to as the windpipe.