Endocrine System Worksheet
1. Fill in the gaps in the sentences below using the words in the list.
target; blood system; ducts; hormones a. Endocrine glands release their secretions directly into the blood. In other words they have no . b. Endocrine glands secrete chemicals called . c. Hormones are transported from the endocrine glands to all parts of the body by the . d. Although hormones are carried throughout the body they only affect specific . organs and tissues
2. The position of endocrine organs have been indicated in red on the diagram of a composite male and female dog shown below. Add the labels in the list to the diagram.
Ovary; Pancreas; Thyroid gland; Pituitary gland; Testis; Adrenal gland; Pineal gland; Parathyroid gland
3. On the diagram of the brain below indicate the position of the Hypothalamus and Pituitary gland.
4. In the table below list 3 hormones produced by the pituitary gland and state the function of each.
5. Fill in the following table with the endocrine organ the hormones are produced by.
| Hormone | Produced by: |
|---|---|
| Insulin | . |
| Progesterone | . |
| Oestrogen | . |
| Growth hormone | . |
| Adrenaline | . |
| Antidiuretic hormone | . |
| Testosterone | . |
| Aldosterone | . |
| Melatonin | . |
| Oxytocin | . |
| Thyroxine | . |
6. Match the hormones in the list below with their functions.
Oxytocin; Insulin; Oestrogen; Growth hormone; Antidiuretic hormone; Testosterone; Adrenaline; Cortisone; Melatonin; Progesterone; Thyroxine; Luteinising hormone; Follicle stimulating hormone
| Hormone | Function |
|---|---|
| . | 1. Stimulates development of the ovarian follicle. |
| . | 2. Stimulates milk “let down”. |
| . | 3. Controls blood glucose levels. |
| . | 4. Influences the rate of growth and development of young animals. |
| . | 5. Stimulates the growth of long bones. |
| . | 6. Stimulates absorption of water from the kidney tubule. |
| . | 7. Influences the development of sexual maturity. |
| . | 8. Stimulates the development of the corpus luteum. |
| . | 9. Stimulates the development of female sexual characteristics. |
| . | 10. Stimulates the development of the male sexual characteristics. |
| . | 11. Affect glucose, protein and fat metabolism. |
| . | 12. Prepares the lining of the uterus for pregnancy. |
| . | 13. Prepares the body for emergency situations. |
1. melatonin; oxytocin; growth hormone; antidiuretic hormone; follicle stimulating hormone. 2. progesterone; oestrogen; luteinising hormone; cortisone; follicle stimulating. 3. adrenaline; cortisone; aldosterone, oestrogen, insulin.