Flashcard Set Preview
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| 1 |
what are the six levels of organization?
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1.chemical 2.cellular(smallest unit of living) 3.tissue 4.organ 5.organ system(digestive) 6.organism(human)
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Atom
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Smallest unit of matter
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molecule
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two or more atoms joined together ex.deoxyribunucleic acid (DNA)
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Tissue Level
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groups of cells and materials surrounding them.
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4 types of tissues
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Epithelial, connective,muscular,nervous
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Organ level
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tissues join together into structures that are composed of two or more different tissues. they...
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System Level
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Consists of related organs with a common function. ex.digestive system, endocrine system.
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What is metabolism?
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sum all of the chemical processes that occur in the body. catabolism- break down of complex...
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responsiveness
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bodys ability to detect and respond to changes. -decrease in body temperature.-responding...
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movement
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motion of the whole body
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growth
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increase is the bodys size
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differentiation
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development of a cell from an unspecialized to a specialized state.-cells have specialized...
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reproduction
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formation of new cells(growth,repair or replacement)production of new individual cells.
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homeostasis
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a condition of equilibrium in the body's internal environment.-narrow range...
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how does homeostasis affect body fluids?
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maintaining the volume and composition of the body fluids. very important.
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blood plasma
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extra cellular fluid with blood vessels
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lymph
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ECF within lymphatic vessels
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cerebrospinal fluid(csf)
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ECF in the brain and spinal cord
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Synovial fluid
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ECF in joints
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Aqueous humor and vitrious body
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ECF in eyes
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Interstitial fluid and Body function
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cell function depends on regulation of composition of interstitial fluid.
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negative feedback
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reverses a change in a controlled condition ex.regulation of blood pressure(loops)
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positive feedback
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strengthen or reinforce a change in one of the bodys controlled conditions
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MRI
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magnetive resonance imaging-high energy magnetic field. protons in the body align with the...
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CT-Scan
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computer-assisted radiography-3D structures-visualize soft tissue in more detail than conventional...
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Ultrasound Scanning
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high frequency sound wavessonogramlike a bat
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Radionuclide scanning
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radioactive substance given IV. Gamma rays detected by camera which it displays on a video...
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Positron emission Tomography(PET)
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positron(+ charged particles) emitting substance emitted into body.
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Endoscope
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Lighted instrument with lens on monitor
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Colonoscopy
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interior of colon
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Laparoscopy
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organs in the abdomen and pelvis.
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Anthroscopy
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interior of the joint(knee)
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