1. pituitary gland (hypophysis): produces 8 major hormones a. two lobes 1. anterior lobe (adenohypophysis): glandular tissue 2. posterior lobe (neurohypophysis): nervous tissue and is a direct extension of the hypothalamus b. connected to hypothalamus via the infundibulum 2. pituitary-hypothalamus relationships a. vascular connection between the anterior lobe and the hypothalamus b. the hypo. makes releasing/inhibitory hormones (RH/IH) that enter BV to anterior lobe and controls
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The Horrible Hormones I live on a small farm at the top of a mountain. At the bottom of the long gravel driveway is a two story tan house with a red door and shutters. Behind the house is the barn. The barn is a baby blue‚ two stall barn where the horses stay and where we store hay for our animals. There are two fairly large pastures connected to the barn that the animals can graze on. If you walk past the barn to the wood line you will find a small hutch with a handful of pigs. Just past the pigs
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Plant hormones are specialized chemical substances produced by plants. They are the main internal factors controlling growth and development. Hormones are produced in one part of a plant and transported to others‚ where they are effective in very small amounts. Depending on the target tissue‚ a given hormone may have different effects. Plant hormones play an integral role in controlling the growth and development of plants. A plant hormone is generally described as an organic compound synthesized
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Hormones and the Endocrine System 26.1 Chemical and electrical signals coordinate body functions The Endocrine System is a group of interacting glands and tissues throughout the animal body that produce and secrete chemical to initiate and maintain body functions and activities. Chemical Signals -Hormones - are released into the bloodstream by endocrine cells and carried to all locations in the body Consists of all hormone secreting cells Works with the nervous system in regulating body activities
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Questions to Ponder…… Hormones and Regulation of Metabolism 1. Patrick was diagnosed with Diabetes mellitus on his 8th birthday. His 65-year old aunt was just diagnosed with Diabetes also. Patrick is having a hard time understanding why he needs injections‚ while his aunt controls her blood sugar with diet and oral medication. Why is his aunt’s treatment different from his? Patrick’s diagnosis is different than his aunt’s because he has Diabetes Mellitus type 1. This is when the body no longer
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Gonadal sex hormones are produced by gonadotropins (FSH- Follicle Stimulating Hormone and LH- Luteinizing hormone) from the anterior pituitary gland located at the base of the brain. They stimulate male and female gonads to produce hormones of their own. FSH and LH secretion is controlled by GnRH (gonadotropin-releasing hormone)‚ which is a releasing hormone from the hypothalamus. The sex of an embryo is determined at fertilization‚ but secondary sex characteristics develop at puberty. Testosterone
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referred to as hormones which act as “chemical messengers” in an effort to regulate particular bodily functions such as metabolism and growth. These hormones are produced by the pancreas‚ thyroid‚ pituitary‚ pineal‚ and adrenal glands which are also referred to as the endocrine system. Hormones are additionally produced in the ovaries in women and the testes in men. The secretions of particular hormones assist the body in maintaining a state of balance or homeostasis. When one or more hormones within the
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Endocrine System: Biochemistry‚ Secretion and Transport of Hormones 1. Place the following hormones into one of the three categories of hormones (peptides‚ amines or steroids): T4 (thyroxin)‚ estradiol‚ norepinephrine‚ insulin‚ aldosterone‚ glucagon‚ cortisol‚ growth hormone‚ T3 (triiodothyronine)‚ epinephrine‚ testosterone and vasopressin (ADH). |Peptides |Amines |Steroids | |Insulin
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Aldosterone and Hormone Replacement Therapy Aldosterone falls in the class of hormone called mineralocorticoids‚ produces by the adrenal glands and is found near the kidneys. It sustains blood pressure‚ water and salt balance within the body. This procedure is assisting the kidneys to preserve sodium and excrete potassium in order to maintain a balance. If Aldosterone production falls‚ there isn’t enough regulation of salt and water balance (as aldosterone is being lost through urination) triggering
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Increased thyroid hormone levels in the blood result in A) further stimulus to produce thyroid hormone. B) decreased release of thyroid-stimulating hormone from the anterior pituitary. C) increased secretion of thyrotropin-releasing hormone from the hypothalamus. D) inhibition of parathyroid hormone release from the parathyroid glands. 2. Growth hormone is secreted into the bloodstream by the A) anterior pituitary. B) posterior pituitary. C) hypothalamus. D) thymus. 3. A patient has syndrome
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