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Definition
| Any factor that interferes with the normal limits of operation of an organism. |
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Definition
| In a physiologic sense, the maintanence of normal limits of body functioning. |
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Definition
| Short-term physiologic responses to a stress, usually within minutes or hours. |
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Definition
| Long-term physiologic responses to a stress, usually taking from days to months. |
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Term
| developmental acclimization |
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Definition
| Changes in organ or body structure that occur during the physical growth of any organism. |
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Definition
| The ability of an organism to respond physiologically or developmentally to environmental stress. |
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Definition
| The narrowing of blood vessels, which reduces blood flow and heat loss. |
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Definition
| The opening of blood vessels, which increases blood flow and heat loss. |
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Term
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Definition
| States that among mammals of similar shape, the larger mammal loses heat less rapidly than the smaller mammal, and that among mammals of similar size, the mammal with a linear shape will lose heat more rapidly than the mammal with a nonlinear shape. |
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Definition
| States that mammals in cold climates tend to have short, bulkier limbs, allowing less loss of body heat, whereas mammals in hot climates tend to have long, slender limbs, allowing greater loss of body heat. |
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Term
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Definition
| A measure of cranial shape, defined as the maximum width of the skull divided by the maximum length of the skull. |
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Definition
| A measure of the shape of the nasal opening, defined as the width of the nasal opening divided by the height. |
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Term
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Definition
| Oxygen starvation, which occurs frequently at high altitudes. |
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Term
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Definition
| Poor nutrition, from either too much or too little food or from the improper balance of nutrients. |
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Term
| protein-calorie malnutrition |
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Definition
| A group of nutritional diseases resulting from inadequate amounts of proteins and/or calories. |
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Term
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Definition
| An extreme form of protein-calorie malnutrition resulting from a severe deficiency in proteins but not calories. |
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Term
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Definition
| An extreme form of protein-calorie malnutrition resulting from severe defiencies in both proteins and calories. |
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