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29 Cards in this Set
- Front
- Back
The endocrine system consists of glands that release chemicals:
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into the blood
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Second messengers are important in the functioning of:
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protein hormones
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Protein hormones have hormone receptors in the:
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cell membrane
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Steroid hormones have hormone receptors in the:
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nucleus of the cell
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Steroid hormones:
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cause protein synthesis in the cell
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Hormones:
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can use positive feedback mechanisms and negative feedback mechanisms
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TSH:
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is secreted by the adenohypophysis and stimulates the release of thyroid hormone
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Hyposecretion of growth hormone can produce:
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dwarfism
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Hypersecretion of growth hormone can produce:
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acromegaly and gigantism
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Hypersecretion of growth hormone after normal growth years can produce:
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acromegaly
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Oxytocin:
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- is released by the posterior pituitary gland
- stimulates uterine contraction - uses a positive feedback mechanism |
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Diabetes insipidus:
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casues dehydration
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The thyroid gland:
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is found in the neck
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Calcitonin causes:
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a decrease in the blood concentration of calcium
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A condition casued by hypothyroidism resulting from a low dietary intake of iodine is called:
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simple goiter
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Hypothyroidism that occurs later in life can lead to:
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myxedema
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Aldosterone:
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is a mineralcorticoid
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Aldosterone:
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increases blood sodium levels
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Aldosterone has its effects mainly on the cells of the:
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kidney
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Cortisol:
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- is made in the middle zone of the adrenal cortex
- is a glucocorticoid - has an antiimmunity effect |
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Androgens, which are similar to testoserone:
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are secreted by the inner zone of the adrenal cortex
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Epinephrine:
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is released in response to stress
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This can occur in women with hypersecretion of androgens from the adrenal gland:
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virilization
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Insulin:
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- is made by beta cells in the pancreas
- has the opposite effect of glucagon - decreases the blood glucose level |
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The ovary secretes:
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Estrogen
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The corpus luteum secretes mostly:
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progesterone but some estrogen
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Testosterone is:
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produced by the interstitial cells of the testes and the masculinizing hormone
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The placenta releases:
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- chorionic gonadotropins
- progesterone - estrogen |
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The pineal gland is:
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- located in the mediastinum
- sometiems called the "third eye" |