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Chapter One: Extra Vocabulary
homeostasis, feedback loops, diseases, autopsy
23
Anatomy
12th Grade
09/18/2011

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Term
homeostasis
Definition
a dynamic state of equilibrium
Term
feedback loop
Definition
basic type of control system
Term
parts of a feedback loop (3)
Definition
sensor, control center, effector
Term
sensor
Definition
detects changes
Term
nerve endings
Definition
act as sensors, detects a change in the outside temperature
Term
control center
Definition
controls changes, the information from the sensors feeds back to here
Term
brain
Definition
acts as the body's control center
Term
effector
Definition
has an effect on the controlled condition
Term
muscles
Definition
act as effectors to regulate body temperature
Term
types of feedback loops (2)
Definition
negative and positive
Term
negative feedback loops
Definition
negate a change (common)
Term
positive feedback loops
Definition
amplify a change that is occurring in our body (very rare)
Term
disease are regarded as...
Definition
homeostatic imbalances because they are a result of a disturbance in homeostasis
Term
illness
Definition
abnormal conditions of the body
Term
maintaining the balance of body functions is related to...
Definition
age
Term
childhood
Definition
homeostatic functions gradually become more and more efficient
Term
young adulthood
Definition
maximum efficiency and effectiveness
Term
late adulthood/old age
Definition
gradually become less and less efficient
Term
development processes
Definition
changes and functions occurring during the early years
Term
aging processes
Definition
changes occurring after young adulthood
Term
autopsy
Definition
post mortem examination
Term
reasons for doing an autopsy (4)
Definition
cause of death, accuracy of diagnostic tests, undetected problems, effectiveness of surgeries/treatments
Term
stages of an autopsy (3)
Definition
examine the outside of the body, y shaped incision and dissection, microscopic examination of tissues
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