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25 Cards in this Set
- Front
- Back
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Anatomy |
The study of the structure and shape of the body and its parts |
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Physiology |
The study of how the body and pats work of function |
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Cells |
Smallest units of all living things |
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Atoms |
Tiny building blocks of matter; combine to form molecules such as water, sugar and proteins |
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Tissues |
Consists of groups of similar cells that have a common function |
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Organ |
A structure composed of two or more tissue types that performs a specific function for the body |
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Organ System |
A group of organs that work together to accomplish a common purpose |
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Organism |
Represents the highest level of structural organization. Made up of organ systems |
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Metabolism |
A broad term that refers to all chemical reactions that occur within the body cells |
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Homeostasis |
The maintenance of stable internal conditions even though the outside world is changing |
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Receptor |
Some type of sensor that monitors and responds to changes in the environment |
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Control Center |
Determines the level at which a variable is to be maintained, analyzes the information it receives and then determines the appropriate response or course of action |
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Homeostatic Imbalance |
Disturbance in homeostasis resulting in disease |
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Effectir |
Provides the means for the control center's response to the stimulus |
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Negative Feedback |
The net effect of the response to the stimulus is to shut off the original stimulus or reduce its intensity |
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Positive Feedback |
Tends to increase the original disturbance and to push the variable father from its original value |
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Anatomical Position |
The body's standard position where the body is standing erect with the feet parallel and the arms hanging at the sides with palms facing forward |
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Median Section or Midsagittal Section |
When the cut is down the median plane of the body and the right and left parts are equal in size |
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Plane |
Imaginary line |
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Section |
Students make this when preparing to look at the internal structures of the body |
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Cross Section or Transverse Section |
A cut along a horizontal plane, dividing the body or organ into superior and inferior parts |
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Coronal Section |
A cut along a lengthwise plane that divides the body into anterior or posterior parts |
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Sagittal Section |
A cut along the lengthwise, or longitudinal, plane of the body dividing the body into right and left parts |
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Irritability |
The ability to sense changes (stimuli) in the environment and then to react to them |
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Mediastinum |
Central region that separates the lungs into right and left cavities in the thoracic cavity |
