Pig And Pigs Similarities

Pigs and mammals share a number of similarities in external features. Pigs and mammals have
-an umbilical cord
-ears, eyes, mouth
-four limbs
-an anus on the exterior
- a scrotal sac (male pigs) like most mammal males
-hair (fur, whiskers)
-teeth, tongue and two nostrils (Nose)

The fetal pig does indeed have pelage and tactile. Firstly, the pelage covers most of the body such as the (dorsal, ventral, anterior, posterior etc). The pelage alsos possesses a relatively short length. Moreover, the tactile is located on the facial region and act as “whiskers”; they serve as sensory organs due to the touch receptors at the roots. The pelage is found under the chin and the ventral of the snout.

The stance of a pig is different to that of a human. Firstly, pigs are unguligrades; they move by walking on the tips of their toes or rather …show more content…
The gallbladder is present on the underside or the ventral surface of the liver. The physical appearance of the gallbladder is green and of a thin tissued organ attached to the liver.

There is one significant structure that did not allow the following of the oesophagus to be possible; the presence of the liver blocked the view for such observation.

The material found in the stomach is most likely the gastric juice (hydrochloric acid). The main explanation as to why the fetal pig has no food in the stomach is because it is fetal. It can be concluded that it did not have access to the outside environment thus gaining no access to food. Furthermore, if the fetal pig did indeed gain access to food, the remainders of the nourishment would not be present in the stomach due to the hydrochloric acid dissolving the matter.

The cardiac sphincter is found at the last section of the esophagus. It acts as a valve for the esophagus and the stomach; the structure prevents gastric juice from rising to the esophagus. Furthermore, the structure regulates solid and liquid matter entering the