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16 Cards in this Set
- Front
- Back
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What is the function of the endocrine system?
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Maintain homeostasis
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How are the nervous system and the endocrine system related?
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hypothlamus - controls pituitary
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Describe negative feedback control
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Low levels - more hormone; high levels - less hormone
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How does a steroid hormone affect its target cell?
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Steroids enter the cell and make proteins.
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Why must blood glucose levels be kept fairly constant?
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Cells need glucose for energy to match demands
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How does the body maintain blood glucose levels?
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Glucose high - insulin tells liver to store it. Glucose low - glucogen tells liver to convert glycogen to glucose
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secrete hormones
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endocrine glands
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controls pituitary
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hypothalamus
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main endocrine gland
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pituitary gland
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cells that can receive hormones
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target cells
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binding sites for hormones
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receptors
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secrete hormones for stress
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adrenal glands
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feedback system - low levels cause response; high levels turn off response
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negative feedback system
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gland - in the neck - regulates metabolism
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thyroid gland
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produce parathyroid hormone (PTH) - regulates minerals
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parathyroid gland
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How do amino acid hormones affect cells?
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They stick on the membrane, open ion channels or increase enzyme activity.
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