Homeostasis and body flusids Flashcards
Maintenance of a relatively stable internal
environment.
homeostasis
Homeostasis means that that composition, temperature, and other characteristics are absolutely unchanging!
false
Homesostasis is Crucial for …… and ……. of all cells.
survival and function
Each cell contributes to ……. of a relatively
stable internal environment.
maintanenace
step 1
stimulus: produces change in variable
step 2
change detected by receptor
step 3
input: information sent along different pathway to control centre
stop 4
Output: information sent along efferent pathway to effector
step 5
response of effector feeds back to influence magnitude of stimulus and returns variable to homeostasis
concentration of …… molecules
nutrient
concentration of O.. and ……
o2 and co2
concentration of ….. products
waste
pH and temperature
Factors homeostatically regulated
Concentration of ……, ….., and other …….
water, salt, and other electrolytes
Volume and ……
pressure
Homeostasis is a property of a …….. where the self-regulating process tends to maintain the
…….. for the survival. The regulation takes place in a defined …… environment.
human biological system , balance, internal
Body cells are contained in ………through which life sustaining exchanges are made.
watery internal environment
Fluid environment in which the cells live
Extracellular fluid (ECF)
Plasma, interstitial fluid
Extracellular fluid (ECF)
Fluid contained within all body cells
Intracellular fluid (ICF)
Total body fluid
42L
Intacellular fluid
28 L
Extracellular fluid
14L
Plasma
2.8 L
