Questions
Question 1
Match the layer (or tunic) of the GI tract with its primary function:
- Mucosa –
- Submucosa –
- Muscularis externa –
- Serosa (adventitia) –
Question 2
The tubelike digestive system that extends from the mouth to the anus is known as the ________ canal or the gastrointestinal tract
- Peyers
- Alimentary
- Goblet
- Enteric
Question 3
One unique feature of the stomach is that it has ________ muscular layers instead of the normal 2 layers in the rest of the GI tract
- 1
- 3
- 4
- 5
Question 4
The large intestine is made up of the:
- Cecum
- Appendix
- Colon
- Rectum
- Anus
- All of these
Question 5
Match the digestive system structure with its description
- Passageway for both food and air –
- Large collections of lymphoid tissue found in the submucosa of the small intestine –
- Wormlike sac that outpockets from the cecum –
- Valve at the junction of the small and large intestine –
- Membrane securing the tongue to the floor of the mouth –
Question 6
Match the digestive system structure with its description
Sacculations or pouches of the large intestine –
Folds of the gastric mucosa –
Organ distal to the stomach –
Bony portion of the roof of the mouth; the anterosuperior boundary of the oral cavity –
The posterosuperior boundary of the oral cavity; A structure without any bone with the uvula at its posterior end –
Question 7
Match the digestive system structure with its description
Valve controlling food movement from the stomach into the duodenum –
Structure that absorbs water and forms feces –
Primary region of digestion and absorption –
The hollow muscular tube that connects the pharynx to the stomach –
Question 8
Match the following tooth structures with their descriptions:
Visible portion of the tooth –
Material covering the tooth root –
Portion of the tooth embedded in bone –
The crown of the tooth is covered with –
The mucosal tissue that covers the mandible and maxilla inside the mouth-
Question 10
In humans, the number of deciduous teeth is ________ ; and the number of permanent teeth is ________
- 20 ; 20
- 20 ; 32
- 32 ; 20
- 32 ; 32
Question 11
The gallbladder releases bile which is a digestive enzyme that digests fat
- True
- False
Question 12
The salivary gland that produces 65-70% of your saliva is the ________ gland
- Parotid
- Submandibular
- Sublingual
Question 13
Match the end product of digestion with the correct type of food:
Protein –
Carbohydrate –
Fat –
Question 14
Pancreatic and intestinal enzymes operate optimally at a pH that is slightly alkaline, yet the chyme entering the duodenum from the stomach is very acidic. How is the pH of the chyme elevated once it enters the duodenum?
- The pH of chyme changes on its own
- The pancreas releases baking soda
- The pancreas releases bicarbonate
- None of these
Question 15
Smooth muscle contractions that propel food forward is called ________ ; Smooth muscle contraction that churns and mixes foodstuffs is ________
- Peristalsis ; Segmentation
- Segmentation ; Peristalsis
Question 16
The portal triad of the liver contains:
- A branch of the hepatic artery
- A branch of the hepatic portal vein
- A branch of bile duct
- All of these
Question 17
The pancreas has both endocrine and exocrine functions. The digestive portion of the pancreas would be ________
- Endocrine
- Exocrine
ANSWERS
Question 1
Match the layer (or tunic) of the GI tract with its primary function:
- Mucosa – Protection
- Submucosa – Secretion of mucus and absorption of digested food
- Muscularis externa – Gastrointestinal motility
- Serosa (adventitia) – Lubrication to reduce friction when digestive organs move
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