Tonic and Phasic Receptors Sensory Adaptation

Some receptors respond with a burst of activity when a stimulus is first applied, but then quickly decrease their firing rate—adapt to the stimulus—if the stimulus is maintained. Receptors with this response pattern are called phasic receptors. Receptors that produce a relatively constant rate of firing as long as the stimulus is maintained are known as tonic receptors (fig. 10.1).

Phasic receptors alert us to changes in sensory stimuli and are in part responsible for the fact that we can cease paying attention to constant stimuli. This ability is called sensory adaptation. Odor, touch, and temperature, for example, adapt rapidly; bathwater feels hotter when we first enter it. Sensations of pain, by contrast, adapt little if at all.

Essentials of Human Physiology

Essentials of Human Physiology

This ebook provides an introductory explanation of the workings of the human body, with an effort to draw connections between the body systems and explain their interdependencies. A framework for the book is homeostasis and how the body maintains balance within each system. This is intended as a first introduction to physiology for a college-level course.

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Responses

  • dimitri
    Are temperature receptors tonic or phasic?
    7 years ago
  • ulrich
    Where are tonic receptors found?
    7 years ago
  • kathrin gerste
    What do phasic recepters adapt to to maintain stimuli?
    7 years ago
  • Aman
    Does phasic receptors adapt rapidly to maintained stimuli.?
    7 years ago
  • Riku
    Is pain receptors tonic or phasic receptors?
    7 years ago
  • lucas
    Are touch receptors phasic or tonic?
    6 years ago
  • SESUNA AFWERKI
    What sensory receptors are phasic or tonic?
    6 years ago
  • MINH FRANKLIN
    Are touch receptors considered phasic?
    6 years ago
  • timo katajisto
    What is a tonic stimuli?
    6 years ago
  • luke
    What do the terms tonic receptor, phasic receptor, and adaptation refer to?
    6 years ago
  • lavinia
    What do phasic receptors to maintain?
    2 years ago
  • simret
    Is touch receptors phasic ortonic?
    2 years ago
  • hending
    Is temperature an example of tonic receptor?
    2 years ago
  • Jon
    What is meaning of phasic receptor?
    1 year ago
  • petra hahl
    What is phasic adaption?
    1 year ago
  • kenzie
    Why are tonic receptors helpful?
    1 year ago
  • MIKE
    Why are paolin receptors tonic rather than phasic?
    11 months ago
  • nasih
    How to master receptors tonic and phasic?
    10 months ago
  • Ruby
    What is conic n phasic receptor?
    9 months ago
  • Yorda
    Are photoreceptors tonic?
    6 months ago
  • dirk weiss
    How do phasic receptors code magnitude?
    6 months ago
  • jonah
    Are taste receptors tonic and phasic?
    5 months ago
  • ralf nacht
    Which receptors respond to stretch?
    5 months ago
  • ireneo fallaci
    Is hearing tonic or phasic?
    4 months ago
  • Cameron
    Can phasic receptos tirn off?
    3 months ago
  • eerik
    Does sensory adaptation occur in phasic recpetors?
    2 months ago
  • eric blue
    How quickly do phasic mechanoreceptors adapt?
    2 months ago
  • Speranza
    Is sense of temperature more tonic or phasic?
    1 month ago
  • Lydia Fraser
    Are phasic receptors qick to adapt?
    20 days ago
  • micheal
    What if we didn't have phasic mechanoreceptors?
    20 days ago
  • Lena Hueber
    Are hair cells tonic or phasic?
    7 days ago

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