Pima Community College / BIO 202IN / Bio 202 / Digestive System Lab 01

Pima Community College / BIO 202IN / Bio 202 / Digestive System Lab 01

,Pima Community College / BIO 202IN / Bio 202 / Digestive System Lab 01




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,Pima Community College / BIO 202IN / Bio 202 / Digestive System Lab 01



A. Digestive System Overview

Open the Atlas app. From the Views menu, go to Systems Views and scroll down to Digestive
System Views. Select 6. Alimentary Canal. Make the following observations.

You are responsible for all bold terms and diagram labels.

1. Zoom out so that the entire model is visible. The alimentary canal is a continuous tube that begins
at the mouth and ends at the anal canal. Rotate the model and zoom out as required to see the entire
length of the tube.

2. Deselect the skeletal system (the skull icon) in the systems menu to hide the pelvis and spine. Rotate
the alimentary canal to view it from all angles.

3. Use the image below to locate the main sections of the alimentary canal.




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, Pima Community College / BIO 202IN / Bio 202 / Digestive System Lab 01



B. Upper Digestive System

Go to the Views menu and select 1. Upper Digestive System from the set of digestive system views.




1. By rotating the model and selecting the large muscles attached to the mandible, locate the left and
right masseter and the left and right temporalis. Select each muscle and read the definition (book
icon) to learn more.

2. What are the origins and insertions for the masseter and the temporalis?



Origin insertions
Masseter Tendinous aponeurosis of the Ramus of the mandible
zygomatic process of the
maxilla, anterior 2/3 of the
lower border of the zygomatic
arch
Temporalis Temporal fossa and temporal Coronoid process and anterior
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