PATHOLOGY MCQ
ENDOCRINE SYSTEM
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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an undersecretion of thyroxine.
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a defect in hormone release from the posterior pituitary.
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a lower than normal level of insulin-like growth factors.
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hyposecretion of oxytocin.
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Detailed explanation-1: -Too little production of thyroxine by the thyroid gland is known as hypothyroidism. It may be caused by autoimmune diseases, poor iodine intake or caused by the use of certain drugs. Sometimes, the cause is unknown.
Detailed explanation-2: -Thyroxine controls how much energy your body uses (the metabolic rate). It’s also involved in digestion, how your heart and muscles work, brain development and bone health. When the thyroid gland does not make enough thyroxine (called hypothyroidism), many of the body’s functions slow down.
Detailed explanation-3: -Iodine, as a trace element, is a necessary and limiting substrate for thyroid gland hormone synthesis. It is an essential element that enables the thyroid gland to produce thyroid hormones thyroxine (T4) and triiodothyronine (T3).