Lecture%203%20endothyroid%202010

Lecture%203%20endothyroid%202010 - NUR 214 The Endocrine...

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NUR 214 The Endocrine System: The Thyroid Gland
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Thyroid Gland Physical and mental retardation can occur with hypothyroidism Cretinism- appearance depends on severity Hypothyroidism Lack of iodine in diet Dx and Tx necessary by 6 months to prevent severe retardation Mandatory newborn testing in Indiana
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Thyroid Gland Produces hormones that control rate of metabolic processes Hormones T 3 [10%] T 4 (thyroxine) [90%] Calcitonin
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Thyroid Hormone Synthesis Thyroid gland produces thyroid hormone (TH) T 3 [10%] T 4 (thyroxine) [90%] TH production stimulated by pituitary thyroid stimulating hormone (TSH) Iodide concentration impacts the synthesis of TH
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Thyroid Hormone Regulation Thyrotropin releasing Hormone (TRH) from hypothalamus STIMULATES release of TSH STIMULATES release of T 3 and T 4
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Thyroid Hormone Synthesis
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Thyroid Hormone Actions Controls metabolic rate Stimulates GI motility, secretion Stimulates muscle activity, neural excitability Interacts with sympathetic nervous system Needed for physical, mental growth and development
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Abnormalities of Thyroid Function Hyper, Hypo or lack of receptiveness May be a primary abnormality
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This note was uploaded on 02/14/2011 for the course NUR 214 taught by Professor Criswell during the Spring '08 term at Purdue University.

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Lecture%203%20endothyroid%202010 - NUR 214 The Endocrine...

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