Jacob,+Porkers+And+Mike;+The+Dissection

The Pig Dissection: The pig is named Porkers

Porkers is a mammal. He has hair, nipples and nails which are the distinct external characteristic of mammals.

This is the inside of Porkers mouth:

Here is the tongue, teeth and taste buds. Porkers has a total of 12 teeth and for their shape we know that Porkers was an omnivore meaning he eats both meat and plants.

Here is soft palate. Which is located near the back of the mouth, the top of the throat. Here is the hard palate. Is the top of the mouth and starts behind the teeth.

Here are Porker's feet.Notice that Porkers has 4 toes per foot and that the two front one are bigger than the back ones. This is because pigs use digitigrade locomotion (walking on toes) and not plantigrade locomotion ( walking flat on feet bones like humans).

Porkers is a male because he has a scrotal sac. The sac is what holds part of his reproductive organs.

He also has a urogenital opening behind the umbilical cord. Here is the mammary papillae, also known as the nipples.



Porkers also has part of his umbilical cord. Here is the umbilical arteries and the umbilical vein. Next there is the diaphragm that separates the thoracic and abdominal cavities. The main function of the diaphragm is for respiration.When it contracts, the diaphragm flattens, which increases the volume of the thorax, which then expands the lungs. Contracting the diaphragm therefore is associated with breathing in, not out.

Then there is the heart, lungs and thymus glands. The lungs are made up of four different lobes. In the abdominal cavity we were able to find the liver, stomach, spleen,and small and large intestine. The spleen removes old red blood cells, called erythrocytes, from the blood supply and removes, stores and produces white blood cell lymphocytes. These stored lymphocytes produce antibodies and assist in removing microbes and other debris from the blood supply. It works with the immune system and the blood supply.

The small intestine is part of the digestive system and is where the nutrients are absorbed through the villi. The large intestine is where the water is taken from the food.It is also where the waste is prepared for elimination.

Final there is the urinary bladder. Which is located right between the two umbilical arteries. Then there is the pharynx, trachea, larynx, and esophagus. Next we have the inside of Porker's stomach.

Porker's stomach is followed by the caecum which is were the small intestine and large intestine come together.

Then their is the rectum which is the end of the large intestine that has the function of elimination. Here is the gallbladder. Which is were bile from the liver is stored. Here is the Pulmonary artery, aorta, ductus arteriosus, coronary sulcus and coronary artery.

Here is the pericardial sac. Here is the both ventricles and both atria.

Here is the kidneys, renal cortex, renal medulla, renal pelvis, ureter, urinary bladder, and the urethra area.