Fetal Pig Organs Discription

Front 1

Liver

Back 1

large brown lobed structure located at the anterior end of the abdominal cavity.It metabolizes many drugs (including alcohol) and makes a substance similar todetergent for fat digestion called bile.

Front 2

Gall Bladder

Back 2

small sac-like structure located underneath the right part of the liver. Itcollects bile, which is sent to the initial portion of the small intestine (duodenum) viathe cystic and common bile ducts.

Front 3

Stomach

Back 3

a pouch shaped organ that rests just underneath the liver in the upper leftquadrant. It is responsible for storing food and prepares it for digestion.

Front 4

Esophagus

Back 4

located at top of the stomach near diaphragm. It functions in swallowing

Front 5

Pancreas

Back 5

Bumpy yellowish-brown gland located along bottom of the stomach andextending to the duodenum. It looks like “creamed corn”. The pancreas makesdigestive enzymes, which are carried by the pancreatic duct to the duodenum. Thepancreas also makes the hormone insulin, which promotes sugar uptake from blood.

Front 6

Ileum (small intestines)

Back 6

Longest and most distal region of the three parts of the small intestine (curlypart). Further digestion occurs and nutrients are absorbed here.

Front 7

Large intestines (spiral colon)

Back 7

As the name suggests this is a tightly wound coil ofthe large intestines. The large intestine reabsorbs water from digested food.

Front 8

Kidneys

Back 8

two bean-shaped organs present on either side of the spine. The kidneys arecovered by the peritoneal membrane and are thus located retroperitoneal. Thekidneys excrete harmful substances from the blood and form urine.

Front 9

Urinary Bladder

Back 9

a large flattened sac that lies between the two umbilical arteries. Itstores the urine.

Front 10

Urethra

Back 10

The large tube that exits off the bottom of the urinary bladder. The bladdermust be pulled up and the urethra can be separated from the surrounding tissue. Theurethra enables urine to flow from the urinary bladder to the urogenital opening.

Front 11

Scrotal Sacs

Back 11

external pouch located at the posterior end of the male pig. Functions to keep sperm cooler during spermatogenesis.

Front 12

Testes

Back 12

Open the distal end of the cremasteric pouch. The testis is the small smoothstructure inside. They produce sperm cells.

Front 13

Ovaries

Back 13

two small lentil-shaped organs located near the midline in the most posteriorregion of the abdominopelvic cavity.

Front 14

Uterus

Back 14

Central structure where the pig’s uterine horns unite. Carefully cut throughthe pelvic muscles and cartilage along the midline until you have a clear view of theuregenital organs and rectum as they exit the pelvic floor as shown in the figure onthe next page.

Front 15

Heart

Back 15

Cut through the pericardium and the heart will be visible. The heart pumpsblood to the body through the aorta, which is the muscular tube visible at the anteriorend of the heart. It also pumps blood to the lungs via the pulmonary arteries.

Front 16

Lungs

Back 16

Lobed spongy structures located on either side of the heart. Functions inrespiration by enabling gas exchange between the atmosphere and body.

Front 17

Bronchial Tubes

Back 17

Y-shaped tubes that connect the two lungs to the trachea and to eachother.

Front 18

Trachea

Back 18

Relatively easy to identify in the neck and thoracic cavity due to thepresence of cartilage rings that give it a segmented appearance (looks worm- orcentipede-like). These rings keep the thyroid from collapsing as it carries air.