HTHSCI 1H06 Lecture Notes - Lecture 3: Ultimate Tensile Strength, Triiodothyronine, Constipation
10 Feb 2015
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Document Summary
Microanatomy of the thyroid gland spherical follicles surrounded by a layer of follicular cells: should be round colloid should be homogeneous (one colour etc) Thyroid cancer: angular changes in follicles, heterogeneous changes in colloid. Effects bmi of every cell in your body (turns it up) Generation of body heat to help maintain poor body temp. Cells turn away at fuel sources to develop a lot of heat: neurodevelopment (fetal) Insufficient thyroid hormone causes neurocognitive defects in the fetus: nerve conductance (hypo/hyper-reflexia) Too little thyroid hormone hyporeflexia: thyroid hormone stimulates nerve cells to produce more na/k. Atpase pumps: helps maintain rmp (more you have, more quicker you will recover from an ap, increase nerve conduction of velocity) Increase nerve conduction velocity: sympathetic nervous system. Effects on target organs: tells them to up regulate the number of agenergic receptors they release so they become sensitive to sympathetic stimulation, gi motility.
