Below, these abnormalities are summarized. Further, " F or Y our I nformation" only, links to several Web sites that deal with endocrine disorders are provided. Effects of abnormal secretions or FYI materials are included for the following: ENDOCRINE HISTOLOGY PAGE HORMONE EFFECTS.
Overproduction or underproduction of a pituitary hormone will affect the respective end-organ. For example, insufficient production (hyposecretion) of thyroid.
Term Definition Mineral salts (sodium, potassium, and calcium) that carry an electrical charge in solution. A proper balance of electrolytes is essential to the normal functioning of the entire body. Term Definition hormone produced by pancreatic alpha cells that increase the blood glucose level by stimulating the liver to change stored glycogen (a starch form.
Goiter is the term that means enlargement of the thyroid gland. Iodine deficient goiter results because iodine is a crucial component of active thyroid hormones. If there is a low level of iodine in the diet, then less active T3 and T4 can be synthesized.
In our Physiology and Anatomy course, we are primarily concerned with normal body processes. Occasionally we consider disorders associated with the systems we study. The hypersecretion and hyposecretion of a few of our hormones are considered in this unit.
Ml If you are a diabetic, the Diabetes Net can keep you updated on treatments, services and products: m/ml. ADRENAL GLAND hypersecretion of corticosteroids: Cushing's syndrome - changes in carbohydrate and protein metabolism resulting in a puffy appearance.
TOP OF PAGE ESTROGEN AND PROGESTERONE ENDOCRINE HISTOLOGY PAGE NORMAL HORMONE SECRETIONS HOME TESTIS You are not responsible for any effects of hypo or hyper secretion of testosterone. TOP OF PAGE ESTROGEN AND PROGESTERONE ENDOCRINE HISTOLOGY PAGE NORMAL HORMONE SECRETIONS HOME This page was last updated in August, 1997.
Epinephrine and norepinephrine are sympathomimetic hromones because they produce effects that mimic those brought about by the sympathetic nervous system. Term Definition Structure, organ, or tissue to which something is directed.
Except for the adult brain, spleen, testes, uterus, and the thyroid gland itself, thyroid hromone affects virtually every cell in the body. TH also influences growth hormone and plays an important role in maintaining blood pressure.
Disorders: hyposecretion causes diabetes insipidus. Hypersecretion causes syndrome of inappropriate antidiurectic hormone (SIADH ) Term Definition secreted by posterior pituitary gland: acts on uterus to stimulate uterine contractions and initiate labor, and on the breast to promote milk secretion from the mammary glands.
In many parts of the world, the soils are naturally deficient in iodine, and iodine deficiency disorders due to hypothyroidism will occur without iodine supplementation. Thyroid hormone has a crucial role in the development of the nervous system, being involved in the growth of synapses and the formation of myelin.
Term Definition Consist of at least 4 separate glands located on the posterior surface of the lobes of the thyroid gland. Th only hormone known to be secreted by the parathyroid gland is parathyroid hormone (PTS) which helps to regulate calcium balance by stimulating three target organs: bones, kidneys, and intestines.
Hyposecretion in infants casues cretinism; hyposecretion in adults causes myxedema, hypersecretion causes Graves disea.
Thyroid hormone (thyroxine T4 and triiodothyronine T3) is released from. Hyposecretion of thyroxine results in cretinism in children and myxedema in adults.
Term Definition Secrets Growth hormone (stimulates protein sysnthesis and promotes tissue and organ growth Thyroid-stimulating hormone (TSH) stimulates the thyroid to secrete its hormones, thyroxine t4 and triiodothyronine T3 Adrenocorticotropic hormone - ACTH or corticotropin which stimulates the adrenal cortex to secrete its steroid hromones like cortisol; Follicle-stimulating Hormone (FSH - stimulates the growth of.
This disorder is entirely preventable by making sure that pregnant women have sufficient iodine in their diet to be euthyroid (having adequate thyroid hormone levels). The World Health Organization is actively working to reduce iodine deficiency by supplying iodized salt to communities, and developing effective monitoring programs.
In the endocrine system, a target is the structure, organ, or tissue on which a hormone exerts its specific effect. Term ACTH (Adrenocorticotropic hormone) Definition Secreted by the Anterior Pituitary. Acts on the Adrenal cortex, promotes secretions of some hormones by adrenal cortex, especially cortisol.
TSH stimulates all aspects of thyroid hormone synthesis; it also stimulates proliferation of follicle cells. When iodine in the diet is low but not too low, individuals may have goiter and yet be euthyroid, because the enlarged thyroid gland is better able to use the limited amount of iodine available.