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20 Cards in this Set
- Front
- Back
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Feedback that occurs when the body reverses an original stimulus to regain homeostasis
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negative feedback
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What are two examples of negative feedback
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b/p control and body temp control
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Feedback that occurs when the body intensifies or enhances the original stimulus
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positive feedback
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Give an example of positive feedback, explain
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labor; hormones are sent to stimulate the release of the hormone oxytocin which increases uterine contraction
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What 2 systems are involved in feedback
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nervous and endocrine
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What are body fluids composed of?
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water and electrolytes
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What are the 2 main compartments of body fluids?
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ICF and ECF
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How much ICF makes up the fluids of the body?
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2/3 or 66%
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How much ECF makes up the body?
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1/3 or 33%
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WHat does ICF function as for parts of the cell
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stablilizing agent
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What does ICF help the cell maintain?
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its shape
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ICF assist with ___ of ____ across the cell membrane and in and out of the cell
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transport; nutrients
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Where does ECF mostly appear?
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Interstitial tissue and intravascular
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Fluid that is found b/w the cells
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Interstitial
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Watery fluid of the blood known as plasma
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Intravascular
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What are some specialized ECFs?
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synovial fluid, CSF, aqueous fluid
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Where are some additional ECF's located
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GI tract, liver, biliary tract, and lymphatic vessels
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The ___ of ECF is the most important aspect of body fluid balance, b/c w/o and adequate ___ of ECF, the body can't maintain ___ ___.
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volume, volume, normal b/p
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Not enough ECF volume can cause ___.
Too much ECF volume can cause ___. |
hypovolemic shock; congestive heart failure
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Which fluid is most important in fluid balance?
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ECF
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