A&P II Ch. 24 Digestive Lab QUIZ

Figure 24-1 The Stomach (dissected) Use Figure 24-1 to answer the following questions: Identify the structure labeled "4."

circular muscle layer

Figure 24-1 The Stomach (dissected) Use Figure 24-1 to answer the following questions: Identify the structure labeled "3."

longitudinal muscle layer

Figure 24-1 The Stomach (dissected) Use Figure 24-1 to answer the following questions: Identify the structure labeled "10."

oblique muscle layer

Which of the following is an accessory organ of digestion? appendix pancreas spleen colon esophagus

pancreas

Figure 24-1 The Stomach (dissected) Use Figure 24-1 to answer the following questions: What is the function of the structure labeled "6"?

regulates gastric emptying

Figure 24-2 The Wall of the Small Intestine Use Figure 24-2 to answer the following questions: Which structure controls the contraction of the muscularis externa?

10

Put the following layers of the digestive tract wall in order from the lumen to the deepest layer: 1. lamina propria 2. muscularis externa 3. submucosa 4. digestive (mucous) epithelium 5. serosa 6. muscularis mucosae

4, 1, 6, 3, 2, 5

Which structure helps the stomach to stretch as it fills with food?

9 (rugae of mucosa)

The bulk of each tooth consists of a mineralized matrix similar to that of bone called

dentin.

Figure 24-2 The Wall of the Small Intestine Use Figure 24-2 to answer the following questions: What is the layer labeled "3"?

submucosa