Homeostasis - Arfan.
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Transcript of Homeostasis - Arfan.
HomeostasisArfan.
What is it?
It is the concept of our body maintaining a constant and stable
environment.
Why is it Important to our body?Things Homeostasis can do:▣ it warms your body in cold
temperature▣ it keeps you away from diseases ▣ it also maintain your digestive
system.
How does it work?
The Sensors/Receptors
The Controllers
The EffectorsThese are elements commanded by
the controllers that have the function of carrying out actions that
in fact regulate and maintain the equilibrium of the body, including in muscles, glands, cellular organelles,
etc., as well as structures that participate in genetic translation,
production of proteins, etc., on the molecular level.
Removing excess CO2
Body TemperatureHypothermia <35.0 °C (95.0 °F)
Normal =36.5–37.5 °C (97.7–99.5 °F)
Fever >37.5 or 38.3 °C (99.5 or 100.9 °F)
Hyperthermia >37.5 or 38.3 °C (99.5 or
100.9 °F)
Hyperpyrexia >40.0 or 41.5 °C (104.0 or
106.7 °F)
Thermoregulation
It is the process that allows the human
body to maintain its core internal temperature.
How does it work?The central nervous system in our spine
sends messages to the hypothalamus about our
body. From there, it activates our body's
thermoregulatory system if needed.
VasodilationHealth benefits:▣ lowering blood pressure▣ assists in eliminating excess metabolic produced heat▣ enhances clotting factor & leukocyte entry into
damage tissue▣ increases delivery of oxygen & nutrients during energy
consuming activities
VasoconstrictionHealth benefits:▣ Retain heat in cold climates▣ Reduce excessive blood loss▣ Prevent orthostatic hypotension
OsmoregulationControlling water and ion content of the bodyThis is controlled to protect cells by avoiding too much water entering or leaving them. Water content is controlled by water loss from:
▣ the lungs when we exhale▣ the skin by sweating▣ the body, in urine produced by the kidneys▣ the skin while sweating▣ the body, in the urine produced by kidney
The Hormones
OsmoregulationControlling water and ion content of the bodyThis is controlled to protect cells by avoiding too much water entering or leaving them. Water content is controlled by water loss from:
▣ the lungs when we exhale▣ the skin by sweating▣ the body, in urine produced by the kidneys▣ the skin while sweating▣ the body, in the urine produced by kidney
Blood Glucose Regulation
THE ENDResources:
http://www.biology-questions-and-answers.com/homeostasis.html▣ http://www.ehow.com/how-does_4572058_homeostasis-work.html
http://healthyeating.sfgate.com/mean-lungs-cant-rid-enough-carbon-dioxide-8879.htmlhttps://en.wikipedia.org/wiki/Human_body_temperature
▣ http://www.healthline.com/health/thermoregulation#Overview1▣ http://www.explorit.org/news/keepin-it-cool-the-science-of-sweat ▣ https://en.wikipedia.org/wiki/Shivering▣ http://www.healthblurbs.com/vasodilation-and-vasoconstriction-overview/ ▣ http://www.endocrineweb.com/conditions/type-1-diabetes/what-insulin▣ http://www.hormone.org/hormones-and-health/what-do-hormones-do/adrenaline▣ http://www.bbc.co.uk/schools/gcsebitesize/science/edexcel_pre_2011/electrical/hormone
srev6.shtml
▣ http://www.healthline.com/health/what-is-testosterone▣ http://www.bbc.co.uk/schools/gcsebitesize/science/edexcel/responses_to_environment/h
omeostasisrev2.shtml