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Read the given paragraph. X is a but...

Read the given paragraph.
X is a butterfly shaped gland located in the front part of lower neck. Y is a triangular gland present in pair on the top of each kidney. Z is a mixed gland located inferior to stomach which secretes digestive juices as well as hormones.
Now select the incorrect option regarding glands X, Y and Z.

A

X functions as biological clock by secreting a hormone that regulates sleep-wake cycle in humans.

B

If a person is terrified or stressed then gland Y releases a hormone that helps his body to adjust with the stress.

C

Gland Z secretes its hormones when blood glucose concentration is either above or below the normal reference range.

D

Abnormal secretion from gland X may lead to various disorders like exophthalmic goitre, myxoedema, etc.

Text Solution

AI Generated Solution

The correct Answer is:
To solve the question regarding the glands X, Y, and Z, we need to identify each gland based on the descriptions provided and then evaluate the options to find the incorrect statement. ### Step-by-Step Solution: 1. **Identify Gland X**: - The description states that X is a butterfly-shaped gland located in the front part of the lower neck. - This matches the **Thyroid Gland**, which is known for its butterfly shape and location. 2. **Identify Gland Y**: - The description states that Y is a triangular gland present in pairs on the top of each kidney. - This corresponds to the **Adrenal Gland**, which is triangular and located atop the kidneys. 3. **Identify Gland Z**: - The description states that Z is a mixed gland located inferior to the stomach, which secretes digestive juices as well as hormones. - This describes the **Pancreas**, which has both endocrine (hormonal) and exocrine (digestive) functions. 4. **Evaluate the Options**: - **Option A**: "X functions as a biological clock by secreting a hormone that regulates sleep-wake cycle in humans." - This is incorrect because the thyroid gland primarily regulates metabolism, not the sleep-wake cycle. The hormone responsible for regulating sleep-wake cycles is melatonin, produced by the pineal gland. - **Option B**: "If a person is terrified or stressed, then gland Y releases a hormone that helps his body to adjust to the stress." - This is correct because the adrenal gland releases hormones like adrenaline during stress. - **Option C**: "Gland Z secretes a hormone when blood glucose concentration is either above or below the normal reference rates." - This is correct as the pancreas secretes insulin and glucagon to regulate blood glucose levels. - **Option D**: "Abnormal secretion from gland X may lead to various disorders like exophthalmos, goiter, or myxedema." - This is also correct, as disorders related to the thyroid gland can lead to these conditions. 5. **Conclusion**: - The incorrect option regarding glands X, Y, and Z is **Option A**. ### Final Answer: The incorrect option regarding glands X, Y, and Z is **Option A**.
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