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How many of the given statements are cor...

How many of the given statements are correct?
A. Hypothalamus is the centre for eating and drinking.
B. Corpus callosum is made up of nerve fibres.
C. ADH is synthesized by the posterior pituitary.
D. Balancing by semicircular canals is done by the macula.

A

One

B

Two

C

Three

D

All

Text Solution

AI Generated Solution

The correct Answer is:
To determine how many of the given statements are correct, we will evaluate each statement one by one. ### Step-by-Step Solution: 1. **Statement A: Hypothalamus is the centre for eating and drinking.** - The hypothalamus is indeed a crucial part of the brain that regulates various functions, including hunger and thirst. It contains centers that control the urge to eat and drink. - **Conclusion:** This statement is **correct**. 2. **Statement B: Corpus callosum is made up of nerve fibres.** - The corpus callosum is the largest bundle of commissural fibers in the brain, connecting the left and right cerebral hemispheres. It is composed of millions of nerve fibers. - **Conclusion:** This statement is **correct**. 3. **Statement C: ADH is synthesized by the posterior pituitary.** - Antidiuretic hormone (ADH) is synthesized in the hypothalamus, specifically in the supraoptic and paraventricular nuclei. It is then transported to the posterior pituitary gland, where it is stored and released when needed. - **Conclusion:** This statement is **incorrect**. 4. **Statement D: Balancing by semicircular canals is done by the macula.** - The semicircular canals are part of the vestibular system, which is responsible for balance. However, the macula is actually located in the utricle and saccule (otolith organs) and is not directly responsible for the function of the semicircular canals. The semicircular canals detect rotational movements, while the macula detects linear acceleration and head position. - **Conclusion:** This statement is **incorrect**. ### Final Count of Correct Statements: - Correct Statements: A and B (2 statements) - Incorrect Statements: C and D Thus, the total number of correct statements is **2**. ### Summary of Correctness: - A: Correct - B: Correct - C: Incorrect - D: Incorrect ### Final Answer: **2 statements are correct.** ---
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