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Related Concept Videos

Assessing Body Temperature - Tympanic membrane01:14

Assessing Body Temperature - Tympanic membrane

Assessing tympanic membrane temperature involves using a tympanic membrane thermometer (TMT). Here is a step-by-step guide:
Step 1: Begin by practicing good hand hygiene to prevent the transmission of microorganisms.
Step 2: Turn on the thermometer and wait until the ready sign appears on the screen to ensure accurate measurement.
Step 3: Slide the probe cover in place to prevent cross-contamination.
Step 4: Instruct the patient to tilt their head to the side for comfort and check for cerumen...
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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...
Temperature Measurement Sites01:14

Temperature Measurement Sites

A thermometer measures body temperature. The common sites for measuring body temperature are the oral cavity, axillary region, temporal artery, and skin surface, such as the forehead, abdomen, and axilla. True core body temperature is assessed in the rectum, tympanic membrane, pulmonary artery, esophagus, and urinary bladder.
Oral: When assessing oral temperature, the thermometer tip should be placed under the tongue in the posterior sublingual pocket. It offers accurate readings and can be...

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Related Experiment Video

Updated: Jul 2, 2026

Long-term Intravital Immunofluorescence Imaging of Tissue Matrix Components with Epifluorescence and Two-photon Microscopy
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Thermosensitivity in a reconstructed microtic ear.

Martin Oberg1, Magnus Becker, Marthe Arktander

  • 1Department of Plastic and Reconstructive Surgery, Department of Clinical Sciences in Malmö, University of Lund, Malmö University Hospital, Malmö, Sweden. m@nm.se

Scandinavian Journal of Plastic and Reconstructive Surgery and Hand Surgery
|September 3, 2008
PubMed
Summary
This summary is machine-generated.

This study found that reconstructed microtic ears have higher skin temperatures and altered heat perception compared to normal ears. However, these thermal changes in reconstructed ears did not appear to cause clinical disadvantages.

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Area of Science:

  • Plastic Surgery
  • Otolaryngology
  • Sensory Neuroscience

Background:

  • Microtia is a congenital condition characterized by underdeveloped external ear.
  • Autologous reconstruction using patient's own cartilage is a common surgical approach.
  • Assessing sensory outcomes, including thermal sensitivity, is crucial for evaluating reconstruction success.

Purpose of the Study:

  • To quantitatively evaluate thermal thresholds and skin temperature in autologous reconstructed microtic ears.
  • To compare thermosensitivity between reconstructed ears, contralateral normal ears, and healthy controls.
  • To determine if altered thermal perception in reconstructed ears has clinical implications.

Main Methods:

  • Quantitative thermal sensitivity testing using a SENSELab MSA Thermotest.
  • Measurement of skin temperature in three ear regions: lobe, antihelix, and helix.
  • Comparison of thermal data between 19 patients with unilateral microtia and 8 healthy children.

Main Results:

  • Reconstructed ears exhibited significantly higher skin temperatures across all tested areas compared to normal ears.
  • Patients showed minor differences in cold perception but significant differences in heat perception in the antihelix and helix regions.
  • No significant differences in thermal perception were found between the two ears of healthy controls.

Conclusions:

  • Autologous ear reconstruction results in altered thermosensitivity, particularly in heat perception.
  • Despite thermal changes, reconstructed microtic ears do not appear to present clinical disadvantages.
  • Further research may explore the long-term functional and sensory integration of reconstructed ears.