Endocrine System Worksheet Answers

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 ducts.
 * b.	Endocrine glands secrete chemicals called hormones.
 * c.	Hormones are transported from the endocrine glands to all parts of the body by the blood system.
 * d.	Although hormones are carried throughout the body they only affect specific target 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.

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

7. Circle the odd one out.


 * 1.	melatonin; oxytocin;  growth hormone;  antidiuretic hormone;  follicle stimulating hormone. Melatonin is the only hormone in the list not produced by the pituitary gland.
 * 2.	progesterone; oestrogen;  luteinising hormone;  cortisone;  follicle stimulating. Cortisone is the only hormone in the list not involved in any major way with reproduction.
 * 3.	adrenaline; cortisone;   aldosterone,  oestrogen,  insulin. Insulin is the only hormone in the list not produced by the adrenal gland.

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