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5 Cards in this Set
- Front
- Back
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homeostasis |
1. blood pressure at normal range 2. blood pressure increases: disturbed homeostasis 3. receptors detect an increase in blood pressure control centers in the brain decrease stimulation to heart and blood vessels 4. effectors activated; heart rate and stroke volume decrease; blood vessels dilate 5. blood pressure decreases; homeostasis restored 6. blood pressure normal range |
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cell division |
interphase - dna replication prophase - chromatin condenses into chromosomes metaphase - chromosomes align in the center of the cell in association with the spindle fibers anaphase - chromatids separate telophase - migration of each set of chromosomes is complete mitosis is complete, and a new interphase begins |
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inflammatory response |
1. splinter in the skin causes damage and introduces backteria. chemical mediators of inflammation are released or activated in injured tissues and adjacent blood vessels. 2. chemical mediators cause capillaries to dilate and the skin to become red 3. white blood cells leave the dilated blood vessels and move to the site of bacterial infection, where they begin to phagocytize bacteria and other debris |
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tissue repair |
1. fresh wound cuts through epithelium and clot forms 2. 1 week after injury, scab presents and new epidermis is growing into the wound 3. 2 weeks after injury, epithelium has grown completely into the wound, and fibroblasts have formed granulation tissue 4. 1 month after, wound has completely closed, and replaced with new connective tissue |
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protein synthesis |
1. ribosomes binds to mRNA 2. tRNA is properly aligned with mRNA and with the other tRNA 3. enzyme within the ribosome catalyzes a synthesis reaction to form a peptide bond between amino acids 4. ribosomes shift position by three nucleotides 5. a stop codon in the mRNA 6. multiple ribosomes attach to a single mRNA to form polyribosomes. as the ribosomes move down the mRNA, proteins attached to the ribosomes lengthen and eventually detach from the mRNA |
