Endocrine System worksheet with definitions and gland names to match.

Let's solve this Endocrine System matching worksheet step by step. We are given 21 numbered statements on the left and a list of possible answers (A–U) on the right. The goal is to match each statement with the correct term from the list.

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Step-by-Step Matching:

1. Coordinates and directs the activity of the body's cells
→ This describes the endocrine system as a whole.
✔ Answer: S. Endocrine System

2. Chemical Secreted By An Endocrine Gland
→ This is the definition of a hormone.
✔ Answer: U. Hormone

3. Endocrine Gland Located At The Base Of The Brain; Known As The "Master Gland"
→ The pituitary gland is at the base of the brain and is called the master gland.
✔ Answer: C. Pituitary Gland (Hypophysis)

4. Endocrine Gland In The Neck
→ The thyroid gland is located in the neck.
✔ Answer: T. Thyroid Gland

5. Hormone Secreted By The Thyroid Gland To Increase Body Metabolism
→ Thyroxine (T4) is secreted by the thyroid to increase metabolism.
✔ Answer: Q. Thyroxine (T4)

6. Four Small Glands On The Posterior Of The Thyroid Gland
→ These are the parathyroid glands.
✔ Answer: K. Parathyroid Glands

7. Secreted By The Adrenal Cortex; Increases Blood Sugar; Secreted In Times Of Stress And Has An Anti-Inflammatory Effect
→ This is cortisol, a glucocorticoid hormone.
✔ Answer: H. Cortisol

8. Main Relay Center Of The Brain
→ The thalamus is the main relay center for sensory information.
✔ Answer: A. Thalamus

9. Gland Under And Behind The Stomach; Produces Enzymes To Digest Foods And Hormone Insulin To Transport Sugar To Cells
→ This is the pancreas. It has both exocrine (digestive enzymes) and endocrine (insulin) functions.
✔ Answer: N. Pancreas

10. Secreted By The Beta Islet Cells Of The Pancreas; Insulin Helps Sugar Transport From The Blood Into Body Cells
→ This is insulin.
✔ Answer: B. Insulin

11. Two Glands Enclosed In The Scrotal Sac Of A Male; Responsible For Sperm Production And Testosterone Secretion
→ These are the testes.
✔ Answer: D. Testes

12. Responsible For Egg Production And Estrogen And Progesterone Secretion
→ This refers to the ovaries.
✔ Answer: P. Ovaries

13. A specific group of chemical substances including certain hormones and cholesterol
→ This describes steroids, which are lipid-soluble hormones derived from cholesterol.
✔ Answer: E. Steroids

14. The region of the diencephalon forming the floor of the third ventricle of the brain
→ This is the hypothalamus.
✔ Answer: O. Hypothalamus

15. The neuroendocrine gland located beneath the brain that serves a variety of function including regulation of the gonads, thyroid, adrenal cortex, and water balance
→ This is the pituitary gland, which is regulated by the hypothalamus.
✔ Answer: M. Pituitary Gland

16. Female Hormone Secreted By The Ovaries And To A Lesser Extent The Adrenal Cortex
→ This is estrogen.
✔ Answer: I. Estrogen

17. Male sex hormone produced by testes; during puberty promotes virilization and is necessary for normal sperm production
→ This is testosterone.
✔ Answer: F. Testosterone

18. Hyper Functioning Of The Thyroid Gland
→ This condition is called Graves' disease.
✔ Answer: J. Graves Disease

19. Enlargement Of The Thyroid Gland
→ This is known as a goiter.
✔ Answer: L. Goiter

20. Secreted By The Adrenal Medulla; Increases Heart Rate And Blood Pressure And Dilates Airways
→ This is epinephrine (adrenaline).
✔ Answer: G. Epinephrine (Adrenaline)

21. Mineral Salt Found In The Blood And Tissues Necessary For Proper Functioning Of Cells: Potassium, Sodium And Calcium
→ These are electrolytes.
✔ Answer: R. Electrolyte

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Final Answer Key:

| Number | Answer |
|--------|--------|
| 1 | S. Endocrine System |
| 2 | U. Hormone |
| 3 | C. Pituitary Gland (Hypophysis) |
| 4 | T. Thyroid Gland |
| 5 | Q. Thyroxine (T4) |
| 6 | K. Parathyroid Glands |
| 7 | H. Cortisol |
| 8 | A. Thalamus |
| 9 | N. Pancreas |
| 10 | B. Insulin |
| 11 | D. Testes |
| 12 | P. Ovaries |
| 13 | E. Steroids |
| 14 | O. Hypothalamus |
| 15 | M. Pituitary Gland |
| 16 | I. Estrogen |
| 17 | F. Testosterone |
| 18 | J. Graves Disease |
| 19 | L. Goiter |
| 20 | G. Epinephrine (Adrenaline) |
| 21 | R. Electrolyte |

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✔ All questions have been matched correctly.

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