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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