for monitoring the blood glucose levels. The alpha-cells of the Islets of Langerhans release glucagons when glucose levels are low. Glucagons promote the conversion of glycogen into glucose; the lack of glucose can then be compensated for by the new supply of glucose brought about from glucagons. The beta cells of the Islets of Langerhans release insulin when the levels of glucose in the blood is high. Insulin promotes the conversion of glucose into glycogen and this can be stored in the liver for later
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Chapter 45 Hormones and the Endocrine System Lecture Outline Overview: The Body’s Long-Distance Regulators An animal hormone is a chemical signal that is secreted into the circulatory system that communicates regulatory messages within the body. A hormone may reach all parts of the body‚ but only specific target cells respond to specific hormones. A given hormone traveling in the bloodstream elicits specific responses from its target cells‚ while other cell types ignore that particular
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HORMONES Hormones are a class of regulatory biochemicals produced in all multicellular organisms by glands‚ and transported by the circulatory system to a distant target organ to coordinate its physiology and behavior. They serve as a major form of communication between different organs and tissues. Hormones regulate a variety of physiological and behavioral activities‚ including digestion‚ metabolism‚ respiration‚ tissue function‚ sensory perception‚ sleep‚excretion‚ lactation‚ stress‚ growth and
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Nervous and Endocrine System Work Sheet View the following case studies on the Anatomy and Physiology place website: Chapter 7 –Nervous System; Chapter 8- Special Senses Chapter 9 – Endocrine Try to answer the questions in the case study and be sure to check the correct answers! However you will not need to submit your answers to these questions‚ only the questions on the worksheet ( see below). Submit your answers as a word document to the Week 4 dropbox 1. Define a reflex and list
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2010 Abstract Diabetes is a disease that affects currently 23.6 million people‚ about 7.8% of the population. Diabetes comes from a high level of sugar in the blood for a long period of time. Ways to control it are by diet‚ exercise‚ medicine and insulin injections. There are four known types of diabetes: Prediabetes‚ which is a condition that raises the risk of developing type 2 diabetes; Type 1‚ which generally affects primarily the younger population; Type 2‚ which generally affects the adult population;
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Anatomy and Physiology P5/M2 - Homeostasis Homeostasis is the need for an organism or a cell to regulate its internal environment (conditions within the fluid surrounding its body cells) by a system of feedback controls to stabilise health and functioning despite the outside changing conditions. This is important as this is what maintains and helps internal conditions (body temperature) to remain stable and constant. In humans homeostasis happens when the body regulates its body temperature in
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send a message to the hypothalamus which sends a message to the pancreas‚ which is the major organ of the endocrine system‚ so it secretes the hormone glucagon that stimulate the cells to release glucose which control the high levels of sugar in blood. On others hands‚ when the levers of sugar in blood begin to increase the pancreas releases insulin which stimulate cells to eliminate glucose from the blood. These two responses of the organism to internal changes are part of negative feedback system
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Homeostasis‚ also spelled homoeostasis (from Greek: ὅμοιος‚ "hómoios"‚ "similar")‚ is the property of a system in which variables are regulated so that internal conditions remain stable and relatively constant. Examples of homeostasis include the regulation of temperature and the balance between acidity and alkalinity (pH). It is a process that maintains the stability of the human body’s internal environment in response to changes in external conditions. The concept was described by Claude Bernard
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Diabetes mellitus is a group of metabolic diseases in which the individual has high blood glucose levels as a result of the inability of the pancreas to produce insulin‚ or as a result of the cells in the body not responding to the insulin produced. The aim of this documentation is to outline the normal regulation of blood glucose levels in the body which includes the role of the hormone producing alpha cells and beta cells in regulating these levels‚ and the effect that the pathophysiology of diabetes
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LOW BLOOD SUGAR Anyone who takes insulin shots or diabetes pills can have a low blood sugar. Low blood sugar is also called hypoglycemia or insulin shock. Causes of Low Blood Sugar * too much insulin or too many diabetes pills * too little food * skipping meals or snacks * too much exercise Warning Signs of Low Blood Sugar If you have low blood sugar‚ you may feel a warning sign. You may be: * shaky * dizzy * hungry * sweaty * crabby * confused
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