![]() Esophagus: carries food from mouth to stomach soft and muscular so it can move a food bolus by peristalsis.Trachea: the airway it's reinforced with rings of cartilage so it does not collapse.The thyroid secretes hormones that help regulate metabolism. Thyroid Gland: another endocrine gland it’s a small bilobed (two parts) structure just posterior to the larynx.It’s a large, spongy structure covering the ventral surface of the trachea, extending up along either side, and also resides over the heart. Thymus Gland: an endocrine (hormone-secreting) gland that helps regulate the immune system.If you cut it open, you can see the vocal cords inside. Larynx: an enlarged structure on the trachea.Locate and understand the functions of the following structures: Carefully separate the muscles to observe the underlying structures. Cut midline on the ventral surface of the neck to expose the underlying muscles. The more you cut things up, the harder it will be to figure out what you’re looking at. Once you open the body cavity, you will generally be able to separate the different organs by simply pulling them apart with your fingers, forceps, or a probe. Using the diagram to the right begin your dissection in the neck region. How many toes are on the feet? _ Do they have an odd or even number of toes? _ The pharynx (throat) is the cavity in the back of the mouth – it is the junction for food (esophagus) and air (trachea).Ĥ. Once you do this locate the epiglottis, a cone-shaped structure at the back of the mouth, a flap of skin helps to cover the trachea when a pig swallows. You, essentially, must break the jaw, and it will make a cracking sound. This can be difficult and requires some force. ![]() To access the following structures, you will have to cut down either side of the jaw and pry the jaw down.Locate the esophagus at the back of the mouth. Note the taste buds (also known as sensory papillae) on the side of the tongue. ![]() Can you feel your own hard and soft palates with your tongue? Open the pig’s mouth and locate the hard and soft palate on the roof of the mouth. *label the sides on the pig picture above*ģ.
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