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Related Concept Videos

Increased Body Temperature01:25

Increased Body Temperature

7.6K
A body temperature above  38°C  (100.4 °F) is known as fever or pyrexia, and a person with fever is termed 'febrile.' Typically, the hypothalamus, a part of the brain that acts as the body's thermostat, regulates body temperature through a thermoregulatory setpoint. It receives signals from cold and warm thermal receptors throughout the body and adjusts the body's temperature accordingly. Fever occurs when this hypothalamic setpoint is altered, usually in...
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Temperature and Thermal Equilibrium01:11

Temperature and Thermal Equilibrium

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Heat and temperature are essential concepts for everyone every day. The study of heat and temperature is part of an area of physics known as thermodynamics. It is not always easy to distinguish heat and temperature.
The concept of temperature has evolved from the common concepts of hot and cold. The scientific definition of temperature explains more than just our sense of hot and cold. Temperature is operationally defined as the quantity measured with a thermometer. Furthermore, temperature is...
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Thermosensation01:43

Thermosensation

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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...
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Requirements for Human Life01:26

Requirements for Human Life

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The Earth and its atmosphere have provided humans with air, water, and food, but these are not the only requirements for survival. Humans also require a specific range of temperature and pressure that the Earth and its atmosphere provides.
Oxygen
Atmospheric air is only about 20 percent oxygen, but that oxygen is a key component of the chemical reactions that keep the body alive, including the reactions that produce ATP. Brain cells are susceptible to a lack of oxygen because they require a...
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Veins01:17

Veins

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Veins are an integral part of our circulatory system, serving as the blood vessels that transport blood from all body regions to the heart. They are a network of hollow tubes that carry blood low in oxygen from the body's cells back to the heart for reoxygenation. Veins are crucial for maintaining the body's overall fluid balance and the continuous circulation of blood.
Structure of Veins:
The structure of veins is specifically designed to assist in the low-pressure transportation of...
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Homeostatic Imbalances in Body Temperature01:19

Homeostatic Imbalances in Body Temperature

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Hyperthermia occurs when the body's temperature becomes unusually high, often due to heat exposure, intense physical activity, or certain illnesses. This condition can create a dangerous cycle where elevated body temperature increases the metabolic rate, generating more heat and potentially leading to organ failure and brain damage. A severe form of hyperthermia, called heat stroke, can raise body temperature to life-threatening levels. Fever, on the other hand, is a controlled form of...
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Related Experiment Video

Updated: Mar 28, 2026

Esophageal Heat Transfer for Patient Temperature Control and Targeted Temperature Management
06:43

Esophageal Heat Transfer for Patient Temperature Control and Targeted Temperature Management

Published on: November 21, 2017

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Some like it hot, but not too hot.

Chloe Greppi1, Gonzalo Budelli1, Paul A Garrity1

  • 1Department of Biology and National Center for Behavioral Genomics, Brandeis University, Waltham, United States.

Elife
|December 17, 2015
PubMed
Summary

Mosquitoes avoid targets that are too hot, thanks to a temperature-sensitive receptor. This finding could help develop new mosquito control strategies by manipulating thermal cues.

Area of Science:

  • Entomology
  • Sensory Biology
  • Thermoregulation

Background:

  • Mosquitoes are attracted to hosts by various cues, including heat.
  • Understanding mosquito thermal preferences is crucial for vector control.

Purpose of the Study:

  • To investigate the role of temperature-sensitive receptors in mosquito host-seeking behavior.
  • To determine if mosquitoes avoid excessively hot targets.

Main Methods:

  • Utilized electrophysiology and behavioral assays with genetically modified mosquitoes.
  • Tested mosquito attraction to targets with varying temperatures.

Main Results:

  • Identified a specific temperature-sensitive receptor in mosquitoes.
  • Demonstrated that mosquitoes actively avoid targets significantly hotter than a typical host's temperature.
Keywords:
Aedes aegyptibehaviormosquitoneuroscience

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Conclusions:

  • A specific thermoreceptor acts as a 'heat avoidance' mechanism in mosquitoes.
  • This receptor plays a role in preventing mosquitoes from landing on dangerously hot surfaces, refining host-seeking behavior.