BIO 211 DIGESTIVE ANATOMY LAB VIA VISIBLE BODY:
Labeling and Questions: 0.61 points for each correct label and question answer
1. Open the Visible Body Website.
2. On the left-hand menu, click on My Apps.
3. Click on the Anatomy and Physiology App.
4. In the left-hand menu click “38-42 Digestive System”.
5. Scroll to and click on “Section 38.1 Digestive Overview”. Watch the video/read the text and
answer the following questions.
5a. Food in the digestive tract is broken down into a small unit called a what? nutrient
5b. What are the involuntary muscular contractions called that pass food through the digestive
tract?
peristalsis
5c. Digested food mixed with digestive enzymes and acids secreted by the stomach is called
what? chyme
5d. Most absorption occurs where? Small intestine
6. Click on Menu in the upper right-hand corner.
7. Click “Section 39.2 Oral Cavity” in the left-hand menu.
8. Click on the skin and hide it.
9. Click “teeth”. The model will rotate and present you with the teeth. Click any one of them
and they will un-highlight. Click on each tooth until you have located and identified the
following. Label them on the diagram on the next page.
- Incisors (8)
- Canines (cuspids) (4)
- Premolars (bicuspids) (8)
- Molars (tricuspids) (12)
, 2. canine cuspid
3. incisor , central
1. molar , second
4. premolar bicuspid
10. Now click on any one of the upper incisors. Using the descriptions below, identify these
three parts of each tooth on the diagram below.
- Crown – The outer portion of the tooth that is visible in the open mouth.
- Neck – The part of the tooth hidden by the gingiva/gums.
- Root – The part of the tooth that extends into the alveolar processes.
11. On the diagram below, also identify the lips.
5. root
6. neck
7. crown
8. mandible
, 12. Turn the model back to a lateral view. Notice the very large pinkish gland between the ear
and the mouth. This is the parotid gland. Identify it, open the “book icon”, answer the
following questions, and identify the gland on the diagram below.
12a. True/False – The parotid gland is *deep* to the facial muscles (you will need to know
something about the layers of the digestive tract to answer this. Use pictures and your PowerPoint
for help.) True
12b. Name the three salivary glands.
o 1. parotid
o 2. submandibular
o 3. sublingual
12c. What is the *enzyme* they secrete (not the substance – the specific enzyme)?
Salivary amylase
12d. What does this enzyme do?
Breaks down starch into simple sugars
12e. Which of the salivary glands secretes mostly mucus?
Sublingual gland
9. (Be specific) Salivary
{parotid} gland . L
13. Rotate the model around so you are viewing it posteriorly. You can now see all three
salivary glands. Click to identify all three and label them on the diagram on the next page.
Labeling and Questions: 0.61 points for each correct label and question answer
1. Open the Visible Body Website.
2. On the left-hand menu, click on My Apps.
3. Click on the Anatomy and Physiology App.
4. In the left-hand menu click “38-42 Digestive System”.
5. Scroll to and click on “Section 38.1 Digestive Overview”. Watch the video/read the text and
answer the following questions.
5a. Food in the digestive tract is broken down into a small unit called a what? nutrient
5b. What are the involuntary muscular contractions called that pass food through the digestive
tract?
peristalsis
5c. Digested food mixed with digestive enzymes and acids secreted by the stomach is called
what? chyme
5d. Most absorption occurs where? Small intestine
6. Click on Menu in the upper right-hand corner.
7. Click “Section 39.2 Oral Cavity” in the left-hand menu.
8. Click on the skin and hide it.
9. Click “teeth”. The model will rotate and present you with the teeth. Click any one of them
and they will un-highlight. Click on each tooth until you have located and identified the
following. Label them on the diagram on the next page.
- Incisors (8)
- Canines (cuspids) (4)
- Premolars (bicuspids) (8)
- Molars (tricuspids) (12)
, 2. canine cuspid
3. incisor , central
1. molar , second
4. premolar bicuspid
10. Now click on any one of the upper incisors. Using the descriptions below, identify these
three parts of each tooth on the diagram below.
- Crown – The outer portion of the tooth that is visible in the open mouth.
- Neck – The part of the tooth hidden by the gingiva/gums.
- Root – The part of the tooth that extends into the alveolar processes.
11. On the diagram below, also identify the lips.
5. root
6. neck
7. crown
8. mandible
, 12. Turn the model back to a lateral view. Notice the very large pinkish gland between the ear
and the mouth. This is the parotid gland. Identify it, open the “book icon”, answer the
following questions, and identify the gland on the diagram below.
12a. True/False – The parotid gland is *deep* to the facial muscles (you will need to know
something about the layers of the digestive tract to answer this. Use pictures and your PowerPoint
for help.) True
12b. Name the three salivary glands.
o 1. parotid
o 2. submandibular
o 3. sublingual
12c. What is the *enzyme* they secrete (not the substance – the specific enzyme)?
Salivary amylase
12d. What does this enzyme do?
Breaks down starch into simple sugars
12e. Which of the salivary glands secretes mostly mucus?
Sublingual gland
9. (Be specific) Salivary
{parotid} gland . L
13. Rotate the model around so you are viewing it posteriorly. You can now see all three
salivary glands. Click to identify all three and label them on the diagram on the next page.
