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Physiology, Homeostasis - Coggle Diagram
Physiology, Homeostasis
Cellular Level
Homeostasis is observe in the biochemical reactions in cells
PH regulation
Temperature regulations
Oxygen regulation
ION concentration
Blood glucose concentration
necessary for enzymes to
function optimally
can be a functioning part of the tissue to which it belongs.
Cells respond to changes in volume
activating the metabolic transport
returning back to normal volume.
hyperosmolar or hypoosmolar
the transfer of molecules must result in volume regulation
to don't disturb the contents of the cell from
their maximum function.
All tissues of the body compose organs that comprise organ systems,
work together to achieve homeostasis.
Each cell benefits from homeostatic control
contributes to its maintenance
Development
Homeostasis would not be possible without
setpoints
invaluable in the development of the homeostatic control system
feedback
regulation
The human body is composed of thousands of control systems
detect change caused by disruptors
employ effectors to mediate that change
involves both local control
paracrine or autocrine responses
reflex control
involving the nervous and endocrine systems
understand internal regulation
allostasis
daily variations that exist in the internal system
favors variability
adapt to various environmental encounters.
maintaining stability
through change
necessary for organisms to adapt to their
environments
goal of homeostasis
reduce variability
maintain consistency
Organ Systems Involved
Homeotasis is involved in every organ sistem
no organ in the body acts alone
regulation of body temperature
cooperation in various sistems
integumentary system
nervous system
musculoskeletal system
cardiovascular system
Chemosensors
carotid bodies
aortic body
measure arterial PCO2 and PO2
send information to the control center
tell the effectors
alter breathing rate
to return to balance
reabsorption and secretion of inorganic ions
result of chemosensors in the adrenal cortex
Function
the purpose of homeostasis
maintain the established
internal environment
without
overcome by external stimuli
disrupt the balance.
Mechanism
The mechanism in homeostasis is represented in 5 components
sensor
Setpoint
error detector
controller
role
interpret an error signal
determine the outputs
effectors
homeostasis is attainable
In body
endocrine cells
autonomic nervous system,
medulla
hypothalamus
sensory neurons
effector
produce
response
forces the variable back to the normal range.
regulated (sensed) variable
has a sensor
to measure the change in its
value
example
blood glucose concentration
a controlled (nonregulated) variable
value becomes altered
maintain the regulated variable in the narrow range
example
roles of gluconeogenesis, glycolysis, and glycogenolysis in blood glucose concentration.
Negative feedback
response that is opposite to the stress