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Related Concept Videos

Thermosensation01:43

Thermosensation

Peripheral thermosensation is the perception of external temperature. A change in temperature (on the surface of the skin and other tissues) is detected by a family of temperature-sensitive ion channels called Transient Receptor Potential, or TRP, receptors. These receptors are located on free nerve endings. Those detecting cold temperatures are closer to the surface of the skin than the nerve endings detecting warmth. These thermoTRP channels, while temperature selective, have relatively...
Thermoregulation01:26

Thermoregulation

The human body has a sophisticated thermoregulation system that employs negative feedback mechanisms to maintain an optimal core temperature. When the core temperature drops, peripheral and central thermoreceptors send signals to the hypothalamus, activating the heat-promoting center. This center triggers several responses aimed at increasing the core temperature. First, vasoconstriction reduces the flow of warm blood from internal organs to the skin so that the heat is not lost from the skin,...
Assessing Body Temperature - Temporal Artery01:19

Assessing Body Temperature - Temporal Artery

Here is a stepwise guide to assessing the body temperature at the temporal artery using a temporal artery thermometer
Step 1: Perform hand hygiene and don a fresh pair of gloves to prevent cross-infection and ensure patient safety.
Step 2: Explain the procedure to the patient to establish trust. Clear communication establishes trust with the patient, ensures they understand what to expect, promotes cooperation, and enhances comfort during the procedure.  
Step 3: Assess the patient's forehead...
Assessing Body Temperature - Axilla01:14

Assessing Body Temperature - Axilla

Procedural Guide for Assessing Axillary Body Temperature using a Digital Thermometer:
Step 1: Perform hand hygiene and put on clean gloves to maintain infection control and prevent cross-contamination.
Step 2: Prepare the patient by explaining the procedure to ensure understanding and cooperation. Ensure privacy, expose the axilla, and inform the patient that minimal movement is crucial for an accurate reading.
Step 3: Adjust the patient’s clothing to expose only the axilla. It minimizes...
Somatosensation01:33

Somatosensation

The somatosensory system relays sensory information from the skin, mucous membranes, limbs, and joints. Somatosensation is more familiarly known as the sense of touch. A typical somatosensory pathway includes three types of long neurons: primary, secondary, and tertiary. Primary neurons have cell bodies located near the spinal cord in groups of neurons called dorsal root ganglia. The sensory neurons of ganglia innervate designated areas of skin called dermatomes.
Quantifying Heat02:46

Quantifying Heat

Thermal Energy Microscopically, thermal energy is the kinetic energy associated with the random motion of atoms and molecules. Temperature is a quantitative measure of “hot” or “cold”, which depends on the amount of thermal energy. When the atoms and molecules in an object are moving or vibrating quickly, they have a higher average kinetic energy (KE) (or higher thermal energy), and the object is perceived as “hot”, or it is described as being at a higher temperature. When the atoms and...

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Related Experiment Video

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Dynamic Quantitative Sensory Testing to Characterize Central Pain Processing
09:16

Dynamic Quantitative Sensory Testing to Characterize Central Pain Processing

Published on: February 16, 2017

Tackling thermosensation with multidimensional phenotyping.

William R Schafer1

  • 1MRC Laboratory of Molecular Biology, Hills Road, Cambridge CB2 0QH, UK. wschafer@mrc-lmb.cam.ac.uk

BMC Biology
|November 21, 2012
PubMed
Summary
This summary is machine-generated.

Animals sense temperature via specialized neurons. A recent study used advanced imaging to identify genetic mutations affecting temperature-sensing behaviors in model organisms.

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Area of Science:

  • Neuroscience
  • Genetics
  • Animal Behavior

Background:

  • Thermosensory neurons are crucial for temperature detection across animal species.
  • Genetic studies in simple organisms have identified key genes involved in thermosensation.
  • Understanding temperature sensing mechanisms is vital for various biological processes.

Discussion:

  • Automated imaging and multidimensional phenotyping enable detailed behavioral analysis.
  • This approach allows for the identification of mutants with specific thermosensory defects.
  • Characterizing these mutants provides insights into the genetic basis of temperature perception.

Key Insights:

  • Identified specific gene products essential for detecting temperature changes.
  • Characterized behavioral responses to aversive temperature stimuli.
  • Discovered mutants with defects in thermosensory pathways.

Outlook:

  • Further research can elucidate the molecular mechanisms of thermosensation.
  • Findings may inform studies on temperature-related diseases and therapies.
  • Potential applications in understanding animal adaptation to environmental temperature shifts.