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30 Cards in this Set
- Front
- Back
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The endocrin system is made up of what?
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Cells, tissues, and organs that secrete hormones into body fluids
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What is the function of the endocrin system?
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to maintain homeostasis and regulate physiological activities
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What is the difference between an endocrine gland and the exocrine gland?
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the endocrin secretes hormones in the blood and the exocrin gland produces substances and secretes in the ducts
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What are the tissues that hormones effect?
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target cells
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Explain how the negative feedback system works?
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when hormones reach below normal glands produce hormones and put into bloodstream to maintain homeostacis
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What is attached to the base of the brain and has a front lobe called the anterior pituitary?
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The pituitary gland
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The rear lobe of the pituitary gland is called?
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posterior pituitary
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Released hormones from the hypothalamus control what?
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The secretions of the anterior pituitary
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The posterior pituitary release hormones into the what?
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the bloodstream in response to nerve impulses form the hypothalamus
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What six hormones are secreted form the anterior pituitary?
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Growth hormone, prolactin, thyroid stimulation hormone, adrenocorticotropic hormone, follicle stimulation hormone luteinising hormone
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What are the six hormone abbreviations?
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GH, PRL,TSH, ACTH, FSH, LH
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The structure that actually produces the hormones released by the posterior pituitary is?
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hypothalumus
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What two hormones are associated with the hypothalumus?
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antidiuretic ADH and Oxytocin
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What is the function of ADH antiduiuretic hormone?
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water balance via the kindneys conservation of water
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What is the function of oxytocin?
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cause uterine contractions during child birth and release milk
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Where is the thyroid gland located?
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below the larynx
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the two hormones secreted by the thyroid are?
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T3 and T4
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what is the function of T3 and T4?
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metabolism regulation
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How does TSH affect the release of T3 and T4?
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it will stimulate the thyroid to cause the release of T3 or T4
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What is the function of the hormone calcitonin?
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it lowers blood calcium phosphate ion levels
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how many parathyroid glands are thier and where are they located?
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thier are 4 in the thyroid
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what is the function of the parathyroid hormone? PTH
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it increase the levels of calcium ions in the blood
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The adrenal gland are located where?
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top of the kidneys enclosed in fat
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What is alsosterone?
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it controls sodium ion concetrations (water concentration)
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Name an important Glucocorticoid?
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cordisol
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What secretes hormones as an endocrin gland and digestive juices to the digestive tract as an exocrine gland?
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The pancreas
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What increases the blood levels fo glucose?
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Glucagon
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What decreases the blood levels of glucose?
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Insulin
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What cells of the endocrine system release hormones into the bloodstream?
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Glandular cells
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Adrenocorticotropic hormone ACTH does what?
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controls the secretion of hormones to the adrenal cortex
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