Endocrine System MCQs with Answers

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The thymus gland is primarily located in the chest, specifically behind the sternum and between the lungs.

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Epinephrine (adrenaline) speeds up the heart rate by stimulating the sympathetic nervous system.

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The adrenal glands are located on top of the kidneys.

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The hormone secreted by the posterior pituitary and hypothalamic nerve endings in response to water and salt imbalance is Antidiuretic hormone (ADH), also known as vasopressin.

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Luteinizing Hormone (LH) is a glycoprotein hormone secreted by the anterior pituitary gland.

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Epinephrine (adrenaline) is clinically used as a bronchodilator and heart stimulant.

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Extrinsic information molecules are hormones, which are chemical messengers secreted by endocrine glands that travel through the bloodstream to regulate various physiological functions in the body.

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The pancreas secretes insulin to regulate blood sugar levels by facilitating glucose uptake into cells.

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Estrogen may cause reduction in the levels of norepinephrine in the hypothalamus.

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The thyroid gland produces Thyroxin (T4), a hormone that contains iodine as an essential component.