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Mark the correct matching of source of ...

Mark the correct matching of source of hormone and its function

A

oxytocin-Posterior pituitary, growth and maintenance of mammary glands

B

Melatonin-Pineal gland, regulates the normal rhythm of sleepwake cycle

C

Progesterone-Corpus luteum, stimulation of growth and activities of female secondary sex organs

D

Atrial natriuretic factor-Ventricular wall increases the blood pressure

Text Solution

AI Generated Solution

The correct Answer is:
To solve the question regarding the correct matching of the source of hormone and its function, we will analyze each option step by step. ### Step 1: Analyze Oxytocin - **Source**: Oxytocin is secreted by the posterior pituitary gland. - **Function**: It is responsible for stimulating uterine contractions during childbirth (parturition) and aids in milk ejection during lactation. - **Conclusion**: The statement that oxytocin is responsible for the growth and maintenance of mammary glands is incorrect. This function is attributed to estrogen. Therefore, this option is **incorrect**. ### Step 2: Analyze Melatonin - **Source**: Melatonin is secreted by the pineal gland. - **Function**: It regulates the sleep-wake cycle (diurnal rhythms) and has roles in menstrual regularity and defense capabilities. - **Conclusion**: The function of melatonin as regulating the normal rhythm of the sleep-wake cycle is accurate. Therefore, this option is **correct**. ### Step 3: Analyze Progesterone - **Source**: Progesterone is secreted by the corpus luteum in the ovaries. - **Function**: It is primarily responsible for maintaining the endometrium lining during the luteal phase of the menstrual cycle, which is crucial for implantation. - **Conclusion**: The statement that progesterone stimulates the growth and activities of female secondary sex organs is incorrect; this is the role of estrogen. Therefore, this option is **incorrect**. ### Step 4: Analyze Atrial Natriuretic Factor (ANF) - **Source**: ANF is secreted by the atria of the heart. - **Function**: It helps to decrease blood pressure by promoting the loss of sodium and water, thus reducing blood volume. - **Conclusion**: The statement that ANF increases blood pressure is incorrect. ANF actually works to lower blood pressure. Therefore, this option is **incorrect**. ### Final Conclusion The only correct matching of the source of hormone and its function is: - **Melatonin (Source: Pineal Gland) - Regulates the normal rhythm of the sleep-wake cycle.** ### Summary of Correct Option - **Correct Option**: Melatonin secreted by the pineal gland regulates the normal rhythm of the sleep-wake cycle. ---

To solve the question regarding the correct matching of the source of hormone and its function, we will analyze each option step by step. ### Step 1: Analyze Oxytocin - **Source**: Oxytocin is secreted by the posterior pituitary gland. - **Function**: It is responsible for stimulating uterine contractions during childbirth (parturition) and aids in milk ejection during lactation. - **Conclusion**: The statement that oxytocin is responsible for the growth and maintenance of mammary glands is incorrect. This function is attributed to estrogen. Therefore, this option is **incorrect**. ### Step 2: Analyze Melatonin ...
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