digestive diagrams

muscularis mucosae

What is the layer labeled "2"?

C) simple columnar

What type of epithelium covers the structures labeled "6"? A) simple cuboidal B) simple squamous C) simple columnar D) pseudostratified ciliated columnar E) stratified squamous

D) 10

Which structure controls the contraction of the muscularis externa? A) 2 B) 8 C) 9 D) 10 E) 11

C) 6

Where would you find a brush border? A) 2 B) 4 C) 6 D) 9 E) 10

E) constrict

Contraction of the muscle layer labeled "9" causes the digestive tract to A) fold for increased surface area. B) secrete enzymes. C) shorten. D) dilate. E) constrict.

lesser curvature

Figure 24-1 The Stomach (dissected) Use Figure 24-1 to answer the following questions: Identify the stomach region labeled "5."

regulates gastric emptying

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

9

Figure 24-1 The Stomach (dissected) Use Figure 24-1 to answer the following questions: Which structure(s) help(s) the stomach to stretch as it fills with food?

B) protection from bacteria

Figure 24-2 The Wall of the Small Intestine Use Figure 24-2 to answer the following questions: What is the function of the structure labeled "7"? Select one: a. production of lipase b. protection from bacteria c. production of pepsinogen d. production of hydrochloric acid e. production of sodium bicarbonate

oblique muscle layer

Identify the structure labeled "10."?

E) fundus

Identify the structure labeled "12." A) pylorus B) greater curvature C) lesser curvature D) cardia E) fundus

D) pylorus

Identify the structure labeled "7." A) greater curvature B) cardia C) lesser curvature D) pylorus E) esophagus

A) villi

Identify the structures labeled "6." A) villi B) lacteals C) circular folds D) serosa E) microvilli

E. All of these choices are correct.

The structure labeled "5" A) contributes to the mesentery of the small intestine. B) is called the serosa. C) has a simple squamous epithelium. D) is part of the visceral peritoneum. E) All of the answers are correct.

B) antibodies

What is produced by the structure labeled "7"? A) sodium bicarbonate B) antibodies C) pepsinogen D) hydrochloric acid E) lipase