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Ch. 6 - Cell CommunicationWorksheetSee 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

Concept #1: Gap Junctions

Concept #2: Tight Junctions

Concept #3: Contact-Dependent Signaling

Concept #4: Secreted Signaling Molecules

Concept #5: Electrical Signaling

Practice: Cells in the adrenal medulla secrete a molecule called epinephrine into the bloodstream. Epinephrine travels through the body to affect a variety of organs, including the heart and gut. Which of the following describes the type of signaling exhibited by epinephrine secreted from the adrenal medulla?

Practice: ECL cells in the stomach secrete a molecule called histamine. That histamine then diffuses through the extracellular fluid to bind to and affect neighboring cells. Which of the following describes the type of signaling exhibited by histamine secreted secreted from ECL cells in the stomach?