Q. Consider the following anatomical structures and their unique features: - Pineal gland secretes melatonin, which helps in regulating the circadian rhythm
- Hippocampus is critical for memory consolidation
- Thymus undergoes involution after puberty
Which of the above pairs are correctly matched?
Answer:
1, 2 and 3
Notes: All statements are correct. The pineal gland secretes melatonin to regulate sleep-wake cycles. The hippocampus is essential for the consolidation of memory. The thymus, responsible for T-cell maturation during childhood, begins to shrink and is replaced by adipose tissue after puberty, a process known as involution.