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Fofi core

Cell membrane, endocrine, neurophysiology

QuestionAnswer
p.H. 7.35
body temp. 37º celsius
glucose 70-110 mg/dL
O₂ 100 mmHg
CO₂ 40 mmHg
blood volume 5L
blood pressure 120/80 mmHg
Homeostasis maintenance of a relatively stable internal environment
ECF extracellular fluid Fluid environment in which cells live: Two components-plasma and interstitial fluid
ICF intracellular fluid fluid contained within all body cells
Two systems that maintain homeostasis? Endocrine and nervous
endocrine system consists of glands that secret hormones that travel via the bloodstream.
Endocrine S. as it relates to homeostasis? secreting glands of endocrine regulate activities that require duration rather than speed; controls concentration of nutrients and, via kidney function, controls internal environment's volume and electrolyte composition
nervous S. as it relates to homeostasis? controls and coordinates bodily activities that require rapid responses; detects and initiates reactions to changes in external environment
homeostasis control system must be able to? Detect deviations from normal in internal environment, integrate information with other relevant info., make adjustments to normal
Intrinsic control Local controls that are inherent in an organ.
Extrinsic control always means nervous and endocrine Systs., exists outside of local controls, can override local controls.
Feedforward minimal in homeostasis, primarily refer to dynamics associated with sex and eating. Definition: responses made in anticipation of a change.
Feedback responses made after a change; two types of feedback, negative and positive. Negative is vastly more common.
Negative feedback loop i.e., back to normal.
Created by: lectricbill22