Central & Peripheral Nervous Systems
  • Lesson Menu
    • Study Guide
       Study Guide
      Would you like to create a study guide ?
    • Glossary
    • Notes
    • Help
  • Keyboard-only View
  • Alternate View
Open in a new window/tab

TOPIC 02: The Peripheral Nervous System

Skip Navigation
Receptors Systems
Previous PageNext Page
Lesson Splash, Page 1
Splash
Lesson Overview, Page 2
Overview
Topic 01: Introduction, Page 3
The Central Nervous System
Topic 01: Division of the Brain, Page 4
The Central Nervous System
Topic 01: Principles Structures, Page 5
The Central Nervous System
Topic 01: Developed Brain, Page 6
The Central Nervous System
Topic 01: Major Parts of the Brain and Functions, Page 7
The Central Nervous System
Topic 01: Cerebrum, Page 8
The Central Nervous System
Topic 01: Frontal Lobe Details - LIMP, Page 9
The Central Nervous System
Topic 01: Frontal Lobe: Disruption of Cortical Functions, Page 10
The Central Nervous System
Topic 01: Temporal Lobe Details - LAME, Page 11
The Central Nervous System
Topic 01: Parietal Lobe Details - VAST, Page 12
The Central Nervous System
Topic 01: Occipital Lobe Details - VIP, Page 13
The Central Nervous System
Topic 01: Limbic System, Page 14
The Central Nervous System
Topic 01: Nucleus Accumbens, Page 15
The Central Nervous System
Topic 01: Basal Ganglia, Page 16
The Central Nervous System
Topic 01: Thalamus, Page 17
The Central Nervous System
Topic 01: Hypothalamus, Page 18
The Central Nervous System
Topic 01: Brainstem, Page 19
The Central Nervous System
Topic 01: Brainstem Elements, Page 20
The Central Nervous System
Topic 02: Introduction, Page 21
The Peripheral Nervous System
Topic 02: Neuron Anatomy, Page 22
The Peripheral Nervous System
Topic 02: Neurotransmitters (NT), Page 23
The Peripheral Nervous System
Topic 02: 7 Major Neurotransmitters, Page 24
The Peripheral Nervous System
Topic 02: Chemical Neurotransmitters, Page 25
The Peripheral Nervous System
Topic 02: Neurotransmitter Dysregulation as Pathophysiology, Page 26
The Peripheral Nervous System
Topic 02: NT Actions, Page 27
The Peripheral Nervous System
Topic 02: Receptors Systems, Page 28
The Peripheral Nervous System
Topic 02: Receptor Subtypes, Page 29
The Peripheral Nervous System
Topic 02: Receptor Subtypes in Detail, Page 30
The Peripheral Nervous System
Lesson Summary, Page 31
Lesson Summary
28 of 31

Receptors Systems

In biochemistry and pharmacology, receptors are chemical structures, composed of protein, that receive and transduce signals that may be integrated into biological systems.

Self-regulating systems:

  • Up-regulation = increase in the number of  neuronal receptors in response to low levels of  NT
  • Down-regulation = decrease in the number of  receptors in response to high levels of NT

Allosteric Modulation:

  • Indirect actions of multiple NT on receptors

Major NT Systems

  • Acetylcholine
  • Monoamines
    • Catecholamines
      • Dopamine
      • Norepinephrine
      • Epinephrine
    • Indoleamines
    • Serotonin
    • Melatonin
  • Amino Acids
    • GABA
    • Glutamate