BIOD 151 Module 3 Exam||Portage Learning||100% Verified
Questions & Answers|Latest2024/2025 Study Guide
1. What are two divisions of the human digestive system?: The alimentary canal
and the accessory organs
2. What is the alimentary canal also known as?: gastrointestinal tract
3. What is an Alimentary canal: continuous muscular digestive tube beginning in
the oral cavity. It is open at both ends, winding its way through the body cavity
4. What are the organs included in the alimentary canal?: - mouth (oral cavity),
pharynx (throat), esophagus, stomach, small intestine, large intestine, and anus
5. What are the organs in the accessory digestive organs?: tongue, teeth, gall
bladder, pancreas, liver,salivary glands
6. Which part of the oral cavity make up the opening, floor, walls and the roof
of the mouth?: lips: opening
Floor: tongue
Walls: cheeks
Roof: hard and soft pallate
7. what bones and membrane is the tongue attached to?: hyoid bone, mandibles
and the lingual frenulum
8. Uvula forms what of the mouth? What is it?: posterior border. It's a process
that hangs inferiorly from its attachment to the soft palate
9. What is mastication?: it's the process of breaking down food into smaller pieces
10. What are the three salivary glands in the mouth?, where are they located?: -
sublingual (beneath the tongue), submandibular gland(chin), parotid gland(cheeks)
11. Salivary glands secrete: digestive enzymes called salivary amylase, which
helps to break down starches
12. teeth & tongue will help to chew and move the food around the oral cavity
to form a: bolus
13. How many teeth are present in human adults?: set of thirty two
14. The upper arch of the mouth is located within the: maxilla (upper bone, hard
palate)
15. The lower arch of the mouth is located within the: the lower, movable
mandible contains the lower arch
16. what are the four types of teeth and what are they responsible for?: two
incisors: Central & lateral Chisel shaped, for biting
one pointed canine: tearing
two premolars: grinding
three molars: crushing
17. What are the three parts of a single tooth?: crown, neck, root
18. Where is the crown located?: above the gum line
19. Where is the neck located?: within the upper portion of the gums (gingiva).
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, BIOD 151 Module 3 Exam||Portage Learning||100% Verified
Questions & Answers|Latest2024/2025 Study Guide
20. Where is the root located?: located within the alveolar process(holes inside
the bones)
21. What is the center of each tooth called and what does it contain?: Pulp
cavity; contains blood vessels and nerves, allowing for the sensation of heat, cold
and pain
22. tooth is made up of: dentin
23. What is an enamel and Where is enamel located?: hard connective tissue that
protects the tooth and is located on the surface of the crown
24. What is the function of the tongue?: grips food and repositions it, forming
bolus
25. What are the bumps on the tongue called?: Papillae
26. What are the three types of papillae on the tongue?: circumvallate, fungiform
and filiform
27. What are the papillae that contains taste buds?: Circumvallate and fungiform
papillae
28. What are the papillae that helps to grip food?: All three
29. Where else are taste buds located other than the tongue?: walls of the
pharynx and the surface of the mouth
30. The pharynx is made up of three parts. What are they?: Nasopharynx,
Oropharynx, Laryngopharynx
31. Pharynx has two types of skeletal muscles. Describe them: circumferential
outer layer and the longitudinal inner layer. Those two layers contract alternatively,
causing a wave like contractions called peristalsis
32. What are the four layers of the digestive tract?: mucosa, submucosa, mus-
cularis externa, Serosa
33. Mucosa layer is responsible for: secreting mucus into the interior of the GI
tract. Mucus helps to lubricate the food
34. submucosa layer is responsible for: contains blood and lymph vessels, lymph
nodes, nerves, and mucous glands
35. Muscularis externa has two layers. Describe them; what's the significance
of this?: inner circumferential and outer longitudinal. The composition is opposite
of that to how it was in the pharynx. This is because pharynx to esophagus is the
transitional zone between voluntary swallowing into involuntary contractions from
peristalsis
36. serosa layer is responsible for: it's the outermost layer, they made serous fluid
37. Esophagus pierces through the diaphragm in: Esophageal hiatus
38. Where is the stomach located?: - backward C-shaped organ located along the
left side of the abdomen below the diaphragm,
2/9
Questions & Answers|Latest2024/2025 Study Guide
1. What are two divisions of the human digestive system?: The alimentary canal
and the accessory organs
2. What is the alimentary canal also known as?: gastrointestinal tract
3. What is an Alimentary canal: continuous muscular digestive tube beginning in
the oral cavity. It is open at both ends, winding its way through the body cavity
4. What are the organs included in the alimentary canal?: - mouth (oral cavity),
pharynx (throat), esophagus, stomach, small intestine, large intestine, and anus
5. What are the organs in the accessory digestive organs?: tongue, teeth, gall
bladder, pancreas, liver,salivary glands
6. Which part of the oral cavity make up the opening, floor, walls and the roof
of the mouth?: lips: opening
Floor: tongue
Walls: cheeks
Roof: hard and soft pallate
7. what bones and membrane is the tongue attached to?: hyoid bone, mandibles
and the lingual frenulum
8. Uvula forms what of the mouth? What is it?: posterior border. It's a process
that hangs inferiorly from its attachment to the soft palate
9. What is mastication?: it's the process of breaking down food into smaller pieces
10. What are the three salivary glands in the mouth?, where are they located?: -
sublingual (beneath the tongue), submandibular gland(chin), parotid gland(cheeks)
11. Salivary glands secrete: digestive enzymes called salivary amylase, which
helps to break down starches
12. teeth & tongue will help to chew and move the food around the oral cavity
to form a: bolus
13. How many teeth are present in human adults?: set of thirty two
14. The upper arch of the mouth is located within the: maxilla (upper bone, hard
palate)
15. The lower arch of the mouth is located within the: the lower, movable
mandible contains the lower arch
16. what are the four types of teeth and what are they responsible for?: two
incisors: Central & lateral Chisel shaped, for biting
one pointed canine: tearing
two premolars: grinding
three molars: crushing
17. What are the three parts of a single tooth?: crown, neck, root
18. Where is the crown located?: above the gum line
19. Where is the neck located?: within the upper portion of the gums (gingiva).
1/9
, BIOD 151 Module 3 Exam||Portage Learning||100% Verified
Questions & Answers|Latest2024/2025 Study Guide
20. Where is the root located?: located within the alveolar process(holes inside
the bones)
21. What is the center of each tooth called and what does it contain?: Pulp
cavity; contains blood vessels and nerves, allowing for the sensation of heat, cold
and pain
22. tooth is made up of: dentin
23. What is an enamel and Where is enamel located?: hard connective tissue that
protects the tooth and is located on the surface of the crown
24. What is the function of the tongue?: grips food and repositions it, forming
bolus
25. What are the bumps on the tongue called?: Papillae
26. What are the three types of papillae on the tongue?: circumvallate, fungiform
and filiform
27. What are the papillae that contains taste buds?: Circumvallate and fungiform
papillae
28. What are the papillae that helps to grip food?: All three
29. Where else are taste buds located other than the tongue?: walls of the
pharynx and the surface of the mouth
30. The pharynx is made up of three parts. What are they?: Nasopharynx,
Oropharynx, Laryngopharynx
31. Pharynx has two types of skeletal muscles. Describe them: circumferential
outer layer and the longitudinal inner layer. Those two layers contract alternatively,
causing a wave like contractions called peristalsis
32. What are the four layers of the digestive tract?: mucosa, submucosa, mus-
cularis externa, Serosa
33. Mucosa layer is responsible for: secreting mucus into the interior of the GI
tract. Mucus helps to lubricate the food
34. submucosa layer is responsible for: contains blood and lymph vessels, lymph
nodes, nerves, and mucous glands
35. Muscularis externa has two layers. Describe them; what's the significance
of this?: inner circumferential and outer longitudinal. The composition is opposite
of that to how it was in the pharynx. This is because pharynx to esophagus is the
transitional zone between voluntary swallowing into involuntary contractions from
peristalsis
36. serosa layer is responsible for: it's the outermost layer, they made serous fluid
37. Esophagus pierces through the diaphragm in: Esophageal hiatus
38. Where is the stomach located?: - backward C-shaped organ located along the
left side of the abdomen below the diaphragm,
2/9
