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Related Concept Videos

Body Temperature01:25

Body Temperature

4.4K
The body's temperature, measured in degrees, is determined by the balance between heat production and dissipation to the surrounding environment. For instance, if exercising vigorously, the body will produce more heat, causing sweat and dissipating that heat. Despite extreme environmental conditions and physical exertion, the human temperature-control system maintains a constant core body temperature (the temperature of deep tissues, which are the tissues located beneath the skin and other...
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Body Temperature01:07

Body Temperature

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Body temperature reflects the equilibrium between heat production and heat loss within the body. Most heat is generated by metabolically active tissues, particularly the liver, heart, brain, kidneys, and endocrine organs. At rest, skeletal muscles contribute 20–30% of total heat production, but during vigorous exercise, this can increase up to 30–40 times.
The average body temperature is approximately 37°C (98.6°F) and typically ranges from 36.1–37.2°C...
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Factors Affecting Body Temperature01:28

Factors Affecting Body Temperature

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As a nurse, it is vital to understand the factors affecting body temperature to monitor variations and effectively evaluate deviations from regular.
Factors may  include:
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Increased Body Temperature01:25

Increased Body Temperature

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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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Decreased Body Temperature01:29

Decreased Body Temperature

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A decreased body temperature can occur in patients with hypothermia and frostbite. Heat loss with extended cold exposure overpowers the body's ability to create heat, resulting in hypothermia. Core temperature readings help classify hypothermia. Mild hypothermia is temperatures between 32 °C (89.6 °F) and 35°C (95 °F) and is caused by impaired thermoregulation. Moderate hypothermia is temperatures between 28 C (82.4 °F) and 32 °C (89.6 °F) caused by...
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What is a Nervous System?01:25

What is a Nervous System?

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Overview
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Related Experiment Video

Updated: Jan 31, 2026

Electrophysiological Recording of The Central Nervous System Activity of Third-Instar Drosophila Melanogaster
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Electrophysiological Recording of The Central Nervous System Activity of Third-Instar Drosophila Melanogaster

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Central nervous system circuits that control body temperature.

Christopher J Madden1, Shaun F Morrison1

  • 1Department of Neurological Surgery, Oregon Health & Science University, Portland, OR, United States.

Neuroscience Letters
|December 27, 2018
PubMed
Summary
This summary is machine-generated.

Maintaining mammalian core body temperature is vital for survival. Central nervous system circuits regulate body temperature by controlling thermoeffectors like shivering and sweating.

Keywords:
Brown adipose tissueCutaneous vasomotionSaliva secretionShiveringSweatingThermoregulation

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Area of Science:

  • Physiology
  • Neuroscience
  • Homeostasis

Background:

  • Mammalian core body temperature must be maintained within a narrow range for optimal cellular function and survival.
  • The central nervous system (CNS) integrates thermal inputs from the body to regulate temperature.
  • Thermoeffectors are controlled by CNS circuits to manage environmental and physiological challenges.

Purpose of the Study:

  • To provide an overview of the CNS circuits involved in thermoregulatory reflex control.
  • To explain how the central nervous system maintains core body temperature homeostasis.

Main Methods:

  • This review synthesizes existing research on thermoregulation.
  • It focuses on the neural pathways controlling thermoeffector responses.

Main Results:

  • The CNS utilizes complex circuits to process thermal information and activate effectors.
  • Key thermoeffectors include behavioral changes, cutaneous blood flow, and heat production/loss mechanisms.

Conclusions:

  • Central nervous system circuits are crucial for reflex regulation of thermoregulatory effectors.
  • Understanding these circuits is essential for comprehending mammalian survival in varying thermal conditions.