1. There is a great overlap in functioning between the endocrine system and the _______________system.

urinary respiratory digestive integumentary nervous ---------------------------------------

2. Through the action of _______________ calcium levels in the blood are closely regulated.

parathyroid hormone and calcitonin insulin and glucagon TSH and ADH cortisol and norepinephrine ---------------------------------------

3. The portion of the brain that controls much of endocrine system functioning is the _______________.

limbic system cerebral cortex cerebellum hypothalamus midbrain ---------------------------------------

4. Hormones produced by the endocrine system of glands and tissues are most important to _______________ systems.

skeletal and muscular respiratory and circulatory endocrine and circulatory nervous and endocrine all body ---------------------------------------

5. _______________ is secreted in response to stress and helps to ensure that energy levels in the blood remain high.

Cortisol Insulin Aldosterone ADH Calcitonin ---------------------------------------

6. The hypothalamus releases TRH that causes the anterior pituitary to release TSH that, in turn, targets the _______________ of the brain.

thymus thyroid gland adrenal medulla pancreas ovaries ---------------------------------------

7. Thyroxine from the thyroid gland stimulates the metabolism of _______________.

muscle cells immune system cells nervous system cells reproductive system cells cells of all body systems ---------------------------------------

8. Release of many endocrine system hormones is regulated by _______________ .

negative feedback positive feedback enzymatic action iron content of the blood ---------------------------------------

9. Water balance and thus blood volume are controlled by the effect of the hormone _______________ on the kidneys.

glucagon aldosterone ADH norepinephrine oxytocin ---------------------------------------

10. The activities of the reproductive system are regulated by the hormone _______________.

LH FSH oxytocin testosterone all of these ---------------------------------------

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