BIOLOGY

 

1. An autoimmune disease of the thyroid tissue is called:
A. Graves disease
B. Thyroiditis
C. Thyroid Cancer
D. None of the above
Ans. A
Explanation: There can be many reasons for an overactive thyroid. It is often caused by an autoimmune disease of the thyroid tissue, called Graves disease (or Basedow’s disease).
2. A condition of a chronic inflammation of the thyroid, which lead to under activity?
A. Goitre
B. Thyroiditis
C. Hypothyroidism
D. Hyperthyroidism
Ans. B
Explanation: A condition called Hashimoto’s thyroiditis, a chronic inflammation of the thyroid, can also lead to under activity. The use of certain medications can also affect the production of thyroid hormones.
3. What are the functions of thyroid gland in the body?
A. Controls metabolism
B. Maintain internal homeostasis
C. Controls breathing and heart rate
D. All of the above
Ans. D
Explanation: It helps in controlling our body's metabolism. It secretes hormone which maintain our internal homeostasis. It controls our breathing and heart rate. Our weight is also monitored by thyroid gland. Even internal temperature, cholesterol levels are also tuned up with the help of the hormones released by thyroid gland.
4. Which gland mainly controls and regulates the actual thyroid activity?
A. Pituitary gland
B. Hypothalamus
C. Both A and B
D. Only A
Ans. C
Explanation: The hypothalamus and the pituitary gland are the main controls that regulate the actual thyroid’s activity.
5. Name the condition marked by a low TSH?
A. Hypothyroidism
B. Hyperthyroidism
C. Goitre
D. Thyroid Cancer
Ans. B
Explanation: In hyperthyroidism, patients have low TSH levels.
From the above quiz we have seen what are the functions of thyroid gland, how it affects health and diseases related with it.