Answer the following question given this paragraph: 

The hypothalamus is part of the brain and also secretes hormones, thus connecting the nervous and endocrine systems. The pituitary gland is the master gland of the endocrine system and controls other endocrine glands. Endocrine glands also include the thyroid gland, adrenal glands, pancreas, and gonads.


Q: What is the master gland of the endocrine system?


A:
pituitary gland