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31 Cards in this Set
- Front
- Back
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What is the main factor that limits immunoassyas?
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Cross-reactivity
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Tilter?
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the highest dilution of a specimin needed to cause a reation
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Controled variable?
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The variable that is controlled like blood pressure or body tempurature
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Integrater?
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Integrates information for sensory neurons, compares them to a reference point and sends adjustments
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6 hormons released by the hypothalamus?
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1. Gonadatropin releasing hormone (GnRH)
2. Growth hormon releaseing hormone (GHRH) 3. Somatostatin (SS) 4. Thyroid releasing hormon (TRH) 5. Corticotropin releasing hormon (CRH) 6. Dopamine |
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Indundibulum?
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connects hypothalamus to pituitary and contains the hypothalamo-pituitary portal system
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Posterior pituitary?
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Outgrowth of the hypothalamus, activated by neurons in the hypothalamous and released 2 hormons
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2 hormons released by the posterior pituitary?
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Oxytocin and ADH
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Oxytocin?
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similar in structure to ADH and controls milk release and uterine contrations
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ADH?
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Vassopressin, simmilar to oxytocin and regulates water reabsorption in the collecting ducts of the kidney
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Anterior Pituitary?
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Tissue from Rathke's puch in the pharyynx
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6 hormons released byt the anterior pituitary?
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1. Adrenocorticotropic hormon (ACTH)
2. Thyroid-stimulating hormon (TSH) 3. Growth Hormon (GH) 4. Prolactin 5. Follicle0stimulating hormon (FSH) 6. Leutinizing hormon (LH) |
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Trophic hormons?
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hormons released by the hypothalamus that regulate hormons relseased by the pituitary
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Cushings?
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hypercortisolism usually du to a tumore on in the pituitary releasing to much ACTH
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Hashimoto's disease?
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hypothyroidism caused by autoimmunity against cell that secret T3 and T4.
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Why are hormons released in a pulsatile mannor?
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To avoind up or down regulation.
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Feedforward?
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control in anticipation of an action before levels acually change like chewing
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Coomb's test?
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Used to detedct autoimmunity. clumps RBS together that have Ab already bound to them
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Indirect coob's test?
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Used to detect Rho factor in mom
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cytolysis?
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lysis of human cell that are not RBCs
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Tumor initiators?
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react with DNA to cause mutations that get a tumor started
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Tumore promotion?
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cause transformation but can'r do so without initiation
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Conversion?
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when a cell no longer reacts to control
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Progression?
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The process that tumore cell pick up traight that allow them to grow and evade more
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Growth fraction?
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The number of cells within a tumore that are in the proliferating pool
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How big can a tumor get without vascularization?
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about 1 mm
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Why do tumore invade lyph vessles easier than blood vessles?
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lymph vessels do not have a basil membrain
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How many cells in survive to metastasis in the blood stream?
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about 1 in 1000
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One possible caus for DIC in tumors?
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tumor cell agregat on platlets to hide from the immune system
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Tumor grading?
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the pathologic determination of tumor agressivness
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Tumore staging?
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The determination of tumor agressivness based on clinical and pathological traits
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