Endocrine System

What is the basic function of the endocrine system?

Endocrine works with the nervous system to direct and co-ordinate cell activity

What is an endocrine gland?

A ductless gland or clusters of cells to release their hormones directly into surrounding tissues particuarly blood & lymph vessels

What is a target cell?

A hormone affects only certain cells or organs

What are amino acid based hormones?

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What are steroid based hormones?

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What are the 3 stimuli that bring about hormone release?

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What is the Pineal gland?

-Located in epithalamus
-Secretes melatonin that:
*Peaks @ night makes drowsy, lowest @ midday
*Influences day/night cycle

What is the Pituitary gland?

-Located @ base of brain
-Has 2 lobes:
*Anterior & Posterior

How is the anterior lobe controlled?

Via the stop/start hormone in the hypothalamus

Describe anterior pituitary hormone Growth (GH)?

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Describe anterior pituitary hormone Adrenocorticotrophic (ACTH)?

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Describe anterior pituitary hormone Lutenizing (LH)?

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Describe anterior pituitary hormone Prolactin (PRL)?

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Describe anterior pituitary hormone Follicle Stimulating (FSH)?

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Describe anterior pituitary hormone Thyroid Stimulating (TSH)?

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How is the posterior pituitary controlled and what are its 2 hormones?

By the hypothalamus and oxytocin/anti diuretic

What is the posterior pituitary hormone Oxytocin?

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What is the posterior pituitary hormone Anti- diuretic (ADH)?

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What is the Thyroid Gland?

Biggest gland that controls the thyroid hormone, calcitonin, parathyroid and thymus

What is the thyroid hormone (T3&T4)?

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What is calcitonin?

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What is the parathyroid hormone (PTH)?

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What is the thymus hormone?

Supports the immune system and development of T lymphocytes

What does the pancreas do?

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What does insulin do?

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What do glucagon do?

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What are the adrenal glands?

-Sits above kidneys; has outer cortex and medulla

What is the medulla in the adrenal gland?

-Stimulated by SNS to release:
*adrenaline and nonadrenaline
-Short term stress response

What does the cortex do in the adrenal gland?

-Controlled by anti pituitary and hypothalamus
-Produces 3 hormones (corticosteriods)

What do the 3 corticosteroids do?

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What do the testes do?

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What do the ovaries do?

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