Textbook Question
The common hepatic duct and main pancreatic duct enter into the:
a. Pyloric sphincter
b. Duodenum
c. Ileum
d. Cecum
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Ch. 22 The Digestive System
Amerman2nd EditionHuman Anatomy & PhysiologyISBN: 9780136873822
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Table of contents
- Ch. 1 Introduction to Anatomy and Physiology26
- Ch. 2 The Chemistry of Life38
- Ch. 3 The Cell55
- Ch. 4 Histology47
- Ch. 5 The Integumentary System30
- Ch. 6 Bones and Bone Tissue36
- Ch. 7 The Skeletal System40
- Ch. 8 Articulations19
- Ch. 9 The Muscular System36
- Ch. 10 Muscle Tissue and Physiology29
- Ch. 11 Introduction to the Nervous System and Nervous Tissue28
- Ch. 12 The Central Nervous System42
- Ch. 13 The Peripheral Nervous System41
- Ch. 14 The Autonomic Nervous System and Homeostasis31
- Ch. 15 The Special Senses39
- Ch. 16 The Endocrine System42
- Ch. 17 The Cardiovascular System I: The Heart30
- Ch. 18 The Cardiovascular System II: The Blood Vessels43
- Ch. 19 Blood32
- Ch. 20 The Lymphatic System and Immunity45
- Ch. 21 The Respiratory System27
- Ch. 22 The Digestive System27
- Ch. 23 Metabolism and Nutrition7
- Ch. 24 The Urinary System39
- Ch. 25 Fluid, Electrolyte, and Acid-Base Homeostasis39
- Ch. 26 The Reproductive System10
- Ch. 27 Development and Heredity5
Chapter 22, Problem 4
Match the following terms with the correct definition.
__Chief cells
__Parietal cells
__Gastrin
__Pyloric sphincter
__Diffuse neuroendocrine (DNES) cells
__Gastroesophageal sphincter
__Pepsin
__Chyme
a. Hormone that stimulates multiple digestive processes
b. Enzyme that begins protein digestion
c. Produce acid and intrinsic factor
d. Liquid produced as a result of stomach churning
e. Produce pepsinogen
f. Cells in gastric glands that produce hormones
g. Controls passage of bolus from esophagus to stomach
h. Controls passage of stomach contents to duodenum
Verified step by step guidance1
Step 1: Understand the terms and their definitions. The terms provided are related to the digestive system, and each has a specific role or function. Familiarize yourself with the terms and their general meanings.
Step 2: Match the term 'Chief cells' with its definition. Chief cells are responsible for producing pepsinogen, an inactive precursor to the enzyme pepsin. Match this with the definition 'e. Produce pepsinogen.'
Step 3: Match the term 'Parietal cells' with its definition. Parietal cells are known for producing hydrochloric acid (HCl) and intrinsic factor, which is essential for vitamin B12 absorption. Match this with the definition 'c. Produce acid and intrinsic factor.'
Step 4: Match the term 'Gastrin' with its definition. Gastrin is a hormone that stimulates various digestive processes, such as acid secretion and gastric motility. Match this with the definition 'a. Hormone that stimulates multiple digestive processes.'
Step 5: Continue matching the remaining terms with their definitions: 'Pyloric sphincter' controls the passage of stomach contents to the duodenum (h), 'Diffuse neuroendocrine (DNES) cells' produce hormones in gastric glands (f), 'Gastroesophageal sphincter' controls the passage of bolus from esophagus to stomach (g), 'Pepsin' is an enzyme that begins protein digestion (b), and 'Chyme' is the liquid produced as a result of stomach churning (d).
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Key Concepts
Here are the essential concepts you must grasp in order to answer the question correctly.
Chief Cells
Chief cells are specialized cells located in the gastric glands of the stomach that primarily produce pepsinogen, an inactive precursor of the enzyme pepsin. When pepsinogen is secreted into the acidic environment of the stomach, it is activated to pepsin, which plays a crucial role in the digestion of proteins.
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Parietal Cells
Parietal cells are another type of cell found in the gastric glands, responsible for secreting hydrochloric acid (HCl) and intrinsic factor. The acid creates an acidic environment necessary for activating digestive enzymes and killing pathogens, while intrinsic factor is essential for vitamin B12 absorption in the intestines.
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Gastrin
Gastrin is a hormone produced by G cells in the stomach lining that stimulates the secretion of gastric acid by parietal cells and promotes gastric motility. It plays a vital role in regulating digestive processes, ensuring that the stomach prepares adequately for food intake and digestion.
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Guided course
7:18Stomach Glands
Related Practice
Textbook Question
Mark the following statements as true or false. If a statement is false, correct it to make a true statement.
The muscularis externa of most of the alimentary canal consists of inner circular and outer longitudinal layers of smooth muscle.
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Textbook Question
Mark the following statements as true or false. If a statement is false, correct it to make a true statement.
The mucosa of the esophagus, pharynx, and oral cavity contains simple squamous epithelium to protect it from abrasion.
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Textbook Question
Trace the pathway that food takes through the entire alimentary canal, from the oral cavity to the anal canal.
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Textbook Question
What are the three folds of the small intestine called? What is their purpose?
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Textbook Question
Mark the following statements as true or false. If a statement is false, correct it to make a true statement.
The mucosa from the stomach to the anus consists of an inner layer of stratified columnar epithelium.
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