Which one of the following pairs of organs includes only the endocrine glands?

1. Parathyroid and adrenal

2. Pancreas and parathyroid

3. Thymus and testes

4. Adrenal and ovary

Subtopic:  Parathyroid | Adrenal Medulla | Adrenal Cortex: Aldosterone |
 73%
From NCERT
AIPMT - 2008
Please attempt this question first.
Hints
Please attempt this question first.