🧠 Endocrine Gland That Stores Hormone

Let’s understand this step by step in a very simple way.

First, what are endocrine glands?
These are glands that release hormones directly into the blood. Examples: pituitary, thyroid, adrenal, pancreas.

Most endocrine glands do NOT store hormones. They produce the hormone and release it immediately when needed.

But there is one special gland…
The thyroid gland is the only endocrine gland that can store its hormones.

✅ Correct Answer: Thyroid gland

How does the thyroid store hormone?
The thyroid stores its hormones (T3 and T4) in a substance called colloid inside its follicles.

This stored hormone can last for:

• Days to weeks
• Released slowly when the body needs it

That’s why thyroid problems may take time to show symptoms.

Why is this important?
Because in emergencies or deficiency:

• The body can use stored hormone
• Helps maintain stable metabolism

Why other options are not correct?

• Pituitary gland → Releases hormones immediately, does not store long-term.
• Pancreas → Releases insulin and glucagon directly.
• Adrenal gland → Secretes hormones quickly during stress, no storage.

Simple Exam Trick:
Only gland that stores hormone → Thyroid (stores in colloid)

💚 Exam Objective Nursing – Asha D
Concept clarity • Easy learning • Nursing success