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Ch. 23 - The Digestive SystemWorksheetSee all chapters
All Chapters
Ch. 1 - Introduction to Physiology
Ch. 2 - Molecules and Molecular Interactions
Ch. 3 - Cells and Tissues
Ch. 4 - Cell Metabolism: Bioenergetics, Enzymes, and Respiration
Ch. 5 - Membrane Dynamics
Ch. 6 - Cell Communication
Ch. 7 - Integumentary System
Ch. 8 - Bone and Cartilage
Ch. 9 - Skeletal System
Ch. 10 - Joints
Ch. 11 - Muscles
Ch. 12 - The Nervous System I: Neurons and Neuronal Networks
Ch. 13 - The Nervous System II: The Central Nervous System
Ch. 14 - The Autonomic Nervous System
Ch. 15 - Sensory Physiology
Ch. 16 - The Endocrine System
Ch. 17 - Cardiovascular Physiology I: The Heart
Ch. 18 - Cardiovascular Physiology II: Blood, Blood Vessels, Circulation, and Exchange
Ch. 19 - The Urinary System
Ch. 20 - Respiratory Physiology
Ch. 21 - Acid-Base Balance-- Controlling Blood pH
Ch. 22 - Introduction to the Immune System
Ch. 23 The Lymphatic System
Ch. 23 - The Digestive System
Ch. 24 - Regulation of Metabolism and Energy Balance
Ch. 25 - Human Sexual Reproduction and Development
Sections
Anatomy and Function of the Digestive System
The Macronutrients: Carbohydrates, Lipids, and Proteins
From Mouth to Stomach
The Stomach
The Digestive Accessory Organs I: The Liver and Gall Bladder
The Digestive Accessory Organs II: The Exocrine Pancreas
The Small Intestine I : Arrival at the Duodenum and Initiation of Pancreas/Gall Bladder Secretion
The Small Intestine II: Digestion and Absorption of the Three Macronutrients
The Small Intestine III: Motility
The Large Intestine
Regulation of Gastrointestinal Function
GI Wall
Oral Cavity
Pharynx and Esophagus
Stomach Detailed Anatomy
Small Intestine Anatomy
Large Intestine Anatomy
Liver Anatomy
Pancreas Anatomy
Gallbladder Anatomy
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Next SectionThe Small Intestine II: Digestion and Absorption of the Three Macronutrients

Concept #1: Arrival at the Duodenum-- Secretin and CCK

Practice: An undergraduate researcher in a physiology lab administers an unknown hormone to a rat. The rat’s gall bladder contracts, causing bile to be released into its duodenum. Which of the following is the likely identity of this hormone?

Practice: An undergraduate researcher in a physiology lab administers an unknown hormone to a rat. The pH in the rat’s duodenum increases. Which of the following is the likely identity of this hormone?

Previous SectionThe Digestive Accessory Organs II: The Exocrine Pancreas
Next SectionThe Small Intestine II: Digestion and Absorption of the Three Macronutrients