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Related Concept Videos

Homeostatic Imbalance01:10

Homeostatic Imbalance

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Homeostasis is the maintenance of a stable internal environment within the body, which is crucial for the proper functioning of cells, tissues, organs, and organ systems. The body has various control mechanisms that work together to regulate various physiological parameters such as temperature, blood pressure, pH balance, and fluid balance, to name a few. These control mechanisms are based on feedback loops that can be either positive or negative.
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What is Homeostasis?01:16

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Maintaining homeostasis requires that the body continuously maintain its internal conditions. Each physiological condition has a particular set point, from body temperature to blood pressure to levels of certain nutrients. A set point is the physiological value around which the normal range fluctuates. A normal range is a restricted set of values that is optimally healthful and stable. For example, the set point for normal human body temperature is approximately 37°C (98.6°F).
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Data Validation01:03

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Data validation is an essential part of a comprehensive assessment. Validation is confirming or verifying and opening the door to gathering more assessment data as it clarifies vague or unclear data. The process of checking and verifying the collected information is called data validation. The primary purpose of data validation is to ensure data is as free from error, bias, and misinterpretation as possible.
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Method validation is a crucial process in analytical chemistry designed to confirm that a given method consistently produces reliable and high-quality results. This process is essential when a method is applied to different sample matrices or when procedural modifications are made, ensuring that the results meet acceptable standards across various applications.
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Animal organs and organ systems constantly adjust to internal and external changes through a process called homeostasis ("steady state"). Examples of these changes include regulation of the level of glucose or calcium in the blood or internal responses to external temperatures. Homeostasis requires  maintaining an internal dynamic equilibrium:
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Homeostatic Imbalances in Body Temperature01:19

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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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Methodology for Establishing a Community-Wide Life Laboratory for Capturing Unobtrusive and Continuous Remote Activity and Health Data
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A conceptual framework for homeostasis: development and validation.

Jenny McFarland1, Mary Pat Wenderoth2, Joel Michael3

  • 1Biology Department, Edmonds Community College, Lynnwood, Washington; jmcfarla@email.edcc.edu.

Advances in Physiology Education
|April 24, 2016
PubMed
Summary
This summary is machine-generated.

A new conceptual framework helps teach organismal homeostasis to undergraduates. This validated framework details key ideas and will guide future assessments in physiology education.

Keywords:
conceptual frameworkcore concepthomeostasisphysiology

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Area of Science:

  • Physiology Education
  • Undergraduate Science Education

Background:

  • Organismal homeostasis is a core concept in physiology.
  • Effective teaching strategies for homeostasis are needed at the undergraduate level.

Purpose of the Study:

  • To develop and validate a conceptual framework for understanding and teaching organismal homeostasis.
  • To provide a guide for educators and a basis for assessment development.

Main Methods:

  • Developed a conceptual framework detailing critical components of homeostasis.
  • Validated the framework through online surveys with physiology faculty from diverse institutions.
  • Faculty rated the relevance, importance, and difficulty of framework components.

Main Results:

  • The homeostasis conceptual framework was validated by a broad range of physiology faculty.
  • Faculty confirmed the relevance of framework items for undergraduate physiology.
  • Importance and difficulty ratings were collected for each component.

Conclusions:

  • The validated conceptual framework serves as a guide for teaching and learning homeostasis.
  • This framework lays the groundwork for creating a concept inventory for homeostasis.
  • It addresses a need for structured understanding and assessment of this fundamental physiological concept.