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The Pineal Gland - The Adrenal Glands(cont Adrenal medulla...

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The Pineal Gland Regulates body rhythms and sleep cycles Releases the hormone melatonin, which responds to daily variations in light The Thyroid Gland In neck; regulates metabolism Hyperthyroidism: Overactive thyroid; person tends to be thin, tense, excitable, nervous Hypothyroidism: Underactive thyroid; person tends to be inactive, sleepy, slow, obese, and depressed The Adrenal Glands Adrenals: Arouse body, regulate salt balance, adjust body to stress, regulate sexual functioning; located on top of kidneys Releases epinephrine and norepinephrine (also known as adrenaline and noradrenaline) Adrenal Hormones Epinephrine arouses body; is associated with fear Norepinephrine arouses body; is linked with anger
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Unformatted text preview: The Adrenal Glands (cont) Adrenal medulla: Inner core of adrenals; source of epinephrine and norepinephrine Adrenal cortex: Produces hormones known as corticoids Regulate salt balance, among other functions Adrenal Malfunctions Oversecretion of adrenal sex hormones can cause virilism: exaggerated male characteristics (bearded woman) May also cause premature puberty if oversecretion occurs early in life Handedness Preference for right or left hand in most activities Dominant Hemisphere: Term usually applied to the side of the human brain that produces language Lateralization: Specialization in abilities of brain hemispheres...
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