NEET Zoology Endocrine Glands MCQ Question
Which of the following statements about endocrine glands and their hormones is correct?
Endocrine glands secrete hormones directly into the bloodstream without ducts.
All hormones are produced by specialized endocrine glands.
Thyroid hormones are responsible for the regulation of blood pressure.
Exophthalmic goitre is caused by excessive production of thyroid hormones.
Correct Answer
Detailed Explanation
Endocrine glands are indeed ductless and secrete hormones directly into the blood, while statement A is accurate. Statement B is incorrect as some hormones can be secreted by non-endocrine tissues. Statement C misidentifies the role of thyroid hormones, which primarily regulate metabolic rates. Statement D is correct but less specific than A, which directly addresses the definition of endocrine glands.
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