Task # 3
1. Take a photo of the internal mouth. Include both the upper and lower jaws. Place 6 of the following labels on your diagram. It is mandatory to place the first three labels.

Mouth of the Pig

2. Make a glossary of the terms found above. Include a definition that explains the function(s) of the structures, openings, etc.
  • epiglottis-is a skinny, rubbery like structure that folds over the glottis to keep food and other things from going down the trachea. It is located near the tongue.
  • glottis-Is with the respiratory system, it is a small opening near the vocal cords and the upper larnyx.
  • gullet-muscle like tube that aides in passing food to the stomach
  • nasopharnyx-It is the naval cavity, it helps with respiratory.
  • soft palate-it closes off the naval cavity during swallowing and it is a fold that is connected to the hard palate.
  • hard palate-hard bone like structure of the palate
  • nare-they are the nostrils of the pig, they aid in respiration.
  • tongue-Skeletal muscle in the lower portion of the mouth that helps the act of chewing food.
  • taste buds-Help with tasting foods, located on the tongue.
  • vestibule-area between the lips and teeth
  • uvula- It hangs down from the soft plates center posteriorly.

3. The glottis, gullet and epiglottis are located very close to each other. Explain the relationship between the structure and the openings.The glottis is the opening through which the pig breathes. The epiglottis covers the glottis, and allows air flow. The gullet is the esophagus of the pig. Like in humans, these structures are all found in the throat.
4. Discuss the tongue and the location of the taste buds. A picture and labels needs to be included. The taste buds are located on the sides of the tongue.
5. Which jaw(s) have teeth in the pig? When do the teeth start erupting? Both of the pigs jaws have teeth. The teeth will begin erupting in the early fetal stages.

Task #4
1. Take a photo of the neck area showing the exposed salivary glands. Label the following:
  • parotid gland
  • submaxillary gland
  • Wharton's duct.

Salivary Glands of the pig

2. Create a chart that has 3 columns. Include the following column headings:
  • Structure
  • Description(What the structure looks like)
  • Function(relate information:enzymes released/foods broken down/transports from/to, etc.)
Patroid gland

salivary gland at the base of each ear
produces daytime saliva
Submaxillary gland

salivary gland inside the lower jaw on either side
produces most of the nocturnal saliva, and releases saliva under the tongue
Wharton's duct.

About 5 cm long, wall is much thinner than the parotid gland
Drains saliva from the submaxillary glands and the sublingual glands to the sublingual carnucle at the base of the tongue
3. Compare and contrast the mouth anatomy of the clam, crayfish, starfish and the pig.
The clam was only alike to the starfish in terms of the mouths because they both had little tubes for a mouth. The crayfish and pig, however had jaws which could chew the food. The pig was different from all of them because the pig had teeth on the jaws which could grind up the food as the pig chewed.