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EBR EMS Chapter 1 Definitions

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abdominopelvic quadrants   health professionals divide the abdomen into four areas to help locate specific organs  
abdominopelvic regions   anatomists have divided the abdomen into nine regions to identify the location of organs  
anatomical position   the reference position for the body, which gives meaning to directional terms  
anatomy   the study of the structure of an organism and the relationships of its parts  
appendicular   refers to the upper and lower extremeties  
atrophy   wasting away of tissue  
axial   refers to the head, neck, and torso  
   
abdominal cavity   single cavity containing the abdominal and pelvic organs  
cranial cavity   space inside the skull that contains the brain  
dorsal cavity   includes the cranial and spinal cavity  
mediastinum cavity   a subdivision in the midportion of the thoracic cavity  
pelvic cavity   the lower portion of the ventral cavity  
pleural cavity   a subdivision of the thoracic cavity  
spinal cavity   the space inside the spinal column through which the spinal cord passes  
thoracic cavity   pertaining to the chest area of the body  
ventral cavity   organ containing space in the anteroir trunk of the body that includes the thoracic and abdominopelvic cavities  
control center    
diaphragm   membrane or partition that seperates the thoracic and abdominal cavities  
superior   higher  
inferior   lower  
anterior   front  
posterior   back  
ventral   front  
dorsal   back  
medial   toward the midline of the body  
lateral   further from the midline of the body  
proximal   located nearest the center of the body  
distal   toward the end of a structure  
superficial   toward the surface of the body  
deep   farther away from the body's surface  
dissection   cutting technique used to seperate body parts for study  
effector   responding organ  
experimentation   performing an experiment  
feedback loop   a complex control network classified into positive and negative  
homeostasis   relative uniformity of the normal body's internal environment  
hypothesis   a proposed explaination of an observed phenomenon  
negative feedback loop   control system where information feeding back to the control center causes the level of a variable to be changed in the direction opposite to that of the initial stimulus  
chemical   the simplest structure in a living organism  
cellular   the smallest living unit in an organism  
tissue   group of similar cells that perform a common function  
organ   group of several tissue types that performs a special function  
system   group of organs arranged so that the group can perform a more complex function than any one organ can perform alone  
physiology   the study of body function  
sagittal   a plane that divides the body into right and left halves longitudinally  
midsagittal   a cut or plane that divides the body or any of its parts into two EQUAL halves  
frontal   lengthwise plane running from side to side, dividing the body into anterior and posterior portions  
transverse   a plane that divides the body into upper and lower halves  
positive feedback loop   a control system that feeds back information to the control center causes the level of a variable to be pushed further in the direction of the original deviation  
prone   lying face down  
scientific method   any logical and systematic approach to discovering principles of nature, often involving testing  
sensor   responding sensor in a feedback loop  
supine   lying face up  
theory   an explaination of a scientific principle that has been tested experimentally and found to be true  
law   a scientific law is a theory, or explaination of a scientific principle, with an extraordinarily high degree of acceptance  


   


 

 

 
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Created by: hjkruse on 2009-04-02




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