Page 198 - 86 human physiology part-2

Appendix A: Answers to Review Questions

10. In relation to atmospheric pressure, intrapleural pressure is:

A) more pressurized
• B) less pressurized
C) about the same

The gastrointestinal system

1. This is released in the duodenum in response to acidic chyme

A) Cholecystokinin
B) Gastrin
• C) Secretin
D) Peptide

2. In the GI tract, this layer is responsible for absorption and secretions

• A) Mucosa
B) Sub mucosa
C) Muscularis
D) Serosa

3. This digestive enzyme is produced in the salivary glands and the pancreas

A) Maltase
• B) Amylase
C) Pepsin
D) Nuclease
E) Lipase

4. This keeps the chyme in the stomach until it reaches the right consistency to pass into the small
intestine

A) Esophageal sphincter
B) Intrinsic sphincter
C) Cardiac sphincter
• D) pyloric sphincter

5. The site where most of the chemical and mechanical digestion is carried out

A) Pylorus
B) Fundus
C) Stomach
D) Large intestine
• E) Small intestine

6. Parietal cells secret

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