Digestive System

Digestive Anatomy

100

Which of the following organs directly interact with food as part of the GI tract?

Esophagus

200

Which teeth are located at the front of the mouth and are specialized for cutting food?

Incisors

300

Which of the following structures is part if the GI tract?

A. Stomach

B. Salivary Glands

C. Pancreas

D. Liver 

A.) Stomach

400

How many main structures are identified in the GI tract?

Seven

500

These are the three regions of the small intestine in order?

Duodenum, Jejunum, and Ileum

Digestive functions

100

What is the function of salivary amylase?

Begins carbohydrate digestion in the mouth.

200

This enzyme produced by the stomach begins protein digestion?

Lipase

300

Where does the majority of chemical digestion in the stomach occur?
A.) fundus and body
B.) cardia and fundus
C.) body and pylorus

d.) body

C.) body and pylorus

400

During gastric emptying, chyme is released into the duodenum through the ________.
A.) Esophageal hiatus
B.) Pyloric antrum
C.) Pyloric canal
D.) Pyloric sphincter

D.) Pyloric sphinter

500

Which of these nutrients is absorbed mainly in the duodenum?
A.) Glucose
B.) Iron
C.) Sodium

D.) Water

B.) Iron

Accessory organs

100

Which type of teeth are located behind the canines and function in crushing and grinding?

A.) Incisors and molars

B.) Canines and premolars

C.) Incisors and canines

D.) Molars and premolars

D.) Molars and premolars

200

Which of these organs is not considered an accessory digestive structure? 

A.) Mouth

B.) Salivary glands

C.) Pancreas

D.) Liver

A.) Mouth

300

Which of these ingredients in saliva is responsible for activating salivary amylase?

A.) Mucus

B.) Phosphate ions

C.) Chloride ions

D.) Urea

C.) Chloride ions

400

Which of the following hormones stimulates the release of bile from the gallbladder?

A.) Cholecystokinin

B.) Secretin

C.) Somatostatin

D.) Gastrin

A.) Cholecystokinin

500

What is the primary function of the digestive hormone secretin?

A.) It increases the level of chyme in the small intestine.

B.) It increases the release of pancreatic juice.

C.) It increases stomach acid production

D.) It increases the rate of stomach emptying.

B.) It increases the release of pancreatic juice.

Stomach

100

What is the primary function of the mucosal layer?

A.) Secrete enzymes and absorb nutrients

B.) Protect against friction

C.) Propel food through peristalsis

D.) Anchor the GI tract to surrounding structures

A.) Secrete enzymes and absorb nutrients

200

What is the primary product of chief cells in the gastric glands?

A.) Hydrochloric acid

B.) Gastrin

C.) Mucus

D.) Pepsinogen

D.) Pepsinogen

300

Which gastric gland cell secretes hydrochloric acid (HCl) and intrinsic factor?

A.) Mucous neck cell

B.) G cell

C.) Parietal cell

D.) Chief cell

C.) Parietal cells

400

The muscularis externa is mainly responsible for:

A.) Hormone secretion

B.) Mucus production

C.) Coordinating peristaltic movements

D.) Nutrient absorption

C.) Coordinating peristaltic movements

500

What is the function of the serosa in the GI tract? 

A.) Produces digestive enzymes

B.) Absorbs nutrients

C.) Contracts to move food

D.) Anchors the GI tract in place and reduces friction

D.) Anchors the GI tract in place and reduces friction