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15 Cards in this Set
- Front
- Back
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Lateral hypothalamic lesions = Ventromedial hypothalamic lesions = |
L- no hunger V - excessive eating |
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Hypothalamic regulation |
LH & VHL are not simple on-off centers
-involved in a complex circuitry with the paraventricular nucleus |
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Neuropeptide Y and serotonin play large roles in ________ ______. |
controlling hunger |
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Insulin |
hormone secreted by the pancreas that causes storage of glucose |
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Diabetes |
inadequate insulin in the body |
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Secretion is associated with increased ______. |
hunger |
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Hunger can arise from which 3 environmental factors? |
- food availability - learned preferences - stress |
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"Globesity" & Why |
- over 1 billion adults overweight and over 300 million are obese Why: society/beh. changes, less physically demanding work, technology, passive leisure activities, food availability, economic growth |
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Glucose |
simple sugar that is an important source of energy |
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Glucostats |
neurons sensitive to glucose in the surrounding fluid |
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Stomach ______ receptors send messages to the brain via the vagus nerve. Stomach _____ receptors send messages to the brain about how nourishing the food is. |
- stretch - content |
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Leptin |
hormone produced by fat cells and released into bloodstrem - reaches brain and provides it with info about body's fat stores - high leptin = low hunger - Leptin inhibits neuropeptide release |
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Body mass index (BMI) |
Individuals weight in kg divided by height in m |
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Sexual motivation |
Biologically motivated drive - sex is essential for the survival of a species, but not for an individual - hormones can regulate sexual desire |
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Sex hormones |
secreted by the gon |
