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24 Cards in this Set
- Front
- Back
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6 functions of the edocrine system
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regulates - coordinates - integrates - works with nervous system - no ducts - reactions not immediate + last longer than N.S. responses
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hormones are substances secreted by ____ regulate the activity of another ____ or ____
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cells - tissue - organ
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most hormones are produced by
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glands
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some hormones are produced by
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clusters of cells
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some hormones produced by neurons are called
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neurohormones
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hormones can be ____crine or ____crine
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autocrine - paracrine
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3 types of hormones
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amino acid derivatives - steroid hormones - eicosanoids
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amino acid derivatives are made of simple ____, ____, ____ & ____
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aminos - thyroxin - peptide - protein
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4 examples of amino acid derivatives (most are in this category)
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thyroid hormone - epinephrine + norepinephrine - insulin - glycagen
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steroid hormones are derived from
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cholesterol
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steroid hormones include (2)
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gonadal hormones (sex hormones) - adrenal hormones (cortex only)
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4 examples of steroid hormones
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progesterone - testosterone - cortisol - aldosterone
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eicosanoids are ____ hormones (local hormone)
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paracrine
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2 examples of eicosanoids
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prostaglandins - leukotrienes
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hormone actions occur after the activity of ____ ____
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target cell
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hormone actions increase or decrease ____ ____ in target cells
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cellular activity
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hormone actions only affect cells with ____ for that hormone
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receptors
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hormone receptors are on the ____ ____ & bind to the ____
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target cell - hormone
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hormone receptors determine the effect the ____ will have
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hormone
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binding to hormone receptors may cause change in membrane ____ or ____
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permeability - potential
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binding to hormone receptors may cause synthesis of ____, ____ or ____
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substances - proteins - enzymes
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binding to hormone receptors may cause activation or deactivation of ____
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enzymes
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binding to hormone receptors may cause secretion of ____
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substances
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binding to hormone receptors may cause stimulation of ____
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mitosis
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