Q. Which of the following are endocrine glands?

1. Pituitary
2. Sweat glands
3. Salivary glands
4. Pineal

Select the correct answer using the codes given below:
Answer: Only 1 & 4
Notes: Pituitary and pineal are endocrine glands, releasing hormones directly into the bloodstream. Sweat glands and salivary glands are exocrine glands, as they secrete substances via ducts. Other major endocrine glands include thyroid, adrenal, pancreas, parathyroid, thymus, and gonads. Exocrine glands include mammary, sweat, and salivary glands.