However, we can say that pigs, like most mammals, have all the major organ systems, which include:
* Digestive System: This is the largest system and includes the mouth, esophagus, stomach, small intestine, large intestine, liver, pancreas, and gallbladder.
* Respiratory System: This system includes the nose, trachea, lungs, and diaphragm.
* Circulatory System: This system includes the heart, blood vessels, and blood.
* Nervous System: This system includes the brain, spinal cord, and nerves.
* Excretory System: This system includes the kidneys, ureters, bladder, and urethra.
* Reproductive System: This system differs between male and female pigs.
To give you a rough idea, a pig likely has somewhere between 20-30 major internal organs. However, if you count smaller structures like the lymph nodes, there could be many more.