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Definition
| made of protoplasm which consist of carbohydrates,lipids, nucleic acids, water and mineral salts(electrolytes) |
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| essential for growth, the construction of new body tissue and repair of injured or debilitated tissue. It may function as hormones and antibodies |
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| comprises approximately 80-85% of the bodies weight |
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| Portion outside the nucleus were all metabolic activity occurs |
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Definition
| break down unwanted large molecules. May rupture when exposed to radiation |
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| parent cell divides to form two daughter cells |
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| reduces the number of chromosomes in each daughter cell to half the number of chromosomes in the parent cell |
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| controls all cell division, multiplication and biochemical reaction |
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| act as a reservoir for long term storage of energy, insulate and guard the body against the environment and protect organs |
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| OER - measure used to obtain the amount of cellular injury for a species of ionizing radiation |
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| The Law of Bergonie and Tribondeau States |
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Definition
| The most pronounced radiation effects occur in cells with the least maturity and specialization or differentiation, the greatest reproductive activity, and longest mitotic phase. |
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Definition
| highly specialized and do not divide, relatively insensitive to radiation |
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| effects of ionizing radiation on neutrophils |
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Definition
type of white blood cell, helps fight infection
radiation dose greater than 0.5Gy lessens the number of platelets in the circulating blood
range 1-10Gy- cells become significantly depleted and take months to regain original amounts. wound clotting will be compromised. |
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| failure of cells to start dividing on time |
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| A nonmitotic or nondivision form of cell death. occurs when cells die without attempting division during interphase portion of the ells life cycle |
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Definition
| results when irradiation occurs early in interphase, before DNA synthesis takes place |
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Definition
| results when irradiation individual chromatids. occurs later in interphase, after DNA synthesis has taken place |
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Term
| Ionization of water molecules |
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Definition
| interaction of x-ray photons with water molecules in the human body can result in their separation into other molecular components |
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Definition
| removes electrons from the atoms compromising the molecular structures of the system |
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