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
GI Wall
Oral Cavity
Pharynx and Esophagus
Stomach Detailed Anatomy
Small Intestine Anatomy
Large Intestine Anatomy
Liver Anatomy
Pancreas Anatomy
Gallbladder Anatomy
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
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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