islet cells and against endogenous (internal) insulin have been detected in people at the time of diagnosis and even several years before the development of clinical signs of type 1 diabetes. In addition to genetic and immunologic components‚ environmental factors‚ such as viruses or toxins that may initiate destruction of the beta cell are being investigated. Regardless of the specific cause‚ the destruction of the beta cells results in decreased insulin production by the liver‚ and
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P5. Explaining the Concept of Homeostasis. M2. Probable homeostatic response’s to changes in the internal environment during exercise. The actual word homeostasis means "steady state". Homeostasis describes how the body regulates its process to keep its internal conditions as stable as possible. Homeostasis is necessary because human cells are efficient but very demanding. The phrase homeostasis is a bit confusing; conditions inside our bodies are not constant but are kept within a narrow
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L. PETERSON/AP BIOLOGY Describe the role of the hypothalamus‚ the pituitary hormones‚ and the ovarian hormones in the regulation of the human menstrual cycle. Include in your discussion the concept of feedback control and the way in which fertilization of the egg alters the menstrual cycle. STANDARDS: Hypothalamus and Feedback: Maximum 6 pts. __low progesterone or estrogen resulting in positive feedback __secretion of a releasing factor __secretion of pituitary FSH __high level
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Pituitary Anterior – Located in the base of the brain attached to the hypothalamus. Growth Hormone(GH) – Stimulates an increase in size and rate of division of body cells; enhances movement of amino acids through membranes; promotes growth of long bones. Prolactin (PRL) – Sustains milk production after birth; amplifies effect of LH in males. Thyroid-stimulating Hormone (TSH) – Controls secretion of hormones from the thyroid gland. Adrenocorticotropic Hormone (ACTH) – Controls secretion of certain
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Case Study 1: Zachary’s Story Mike Myers A&P Instructor: Dr. Lok 7-26-15 A) If an ulcer starts eroding the mucosa of the GI track absorption would not happen correctly and some of the ingested and secreted products may seep out of the lumen. When the ulcer makes its way through the muscularis mucosa this would create a way for pathogens to enter. He could also loss control of defecation. B) The condition known as peritonitis is when an ulcer eats a hole in the wall of the stomach and
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Appetite‚ by definition‚ is a term used to describe ones natural desire for food. It differs from hunger and satiety‚ and it is affected by a host of neural‚ hormonal and physical factors that may vary between individuals. This essay sets out to explain how these factors affect the appetite. In doing so the essay will explore the different regions of the brain (and the body) involved in its regulation and control‚ and the ways in which these areas may be pharmacologically and surgically manipulated
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Endocrine System Chapter 13 Study Guide Name ( ) Revision 2 OVERVIEW The endocrine system‚ like the nervous system‚ controls body activities to maintain a relatively constant internal environment. The methods used by these two systems are different. This chapter describes the difference between endocrine and exocrine glands‚ the location of the endocrine glands‚ and the hormones they secrete (objectives 1 and 6). It explains the nature of hormones‚ the substances that function as hormones
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producing several importsnt hormones vital to the human body. These hormones include insulin and glucagon. Both of these hormones help maintain a constant blood sugar level. The pancreas does its job very well but if there was a disturbance things may go severely wrong for both digestive and hormonal system thus‚ leading to Diabetes type 1 and 2 occurring when the pancreas does not produce enough insulin to regulate glucose levels‚ pancreaitis which is inflammation of the pancreas due to smoking
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BIO 135 Test 3 (6‚7‚8‚16) Review Sheet 1. Name the 4 SKELETAL SYSTEM FUNCTIONS 2. What do all types of cartilage have in common? 3. Name the spaces that Chondrocytes are within 4. Name the 3 types of cartilage Where in the body is each type found? 5. Which cartilage has many elastin fibers? 6. What is a cartilage cell called? 7. How does fibrocartilage differ from other cartilage? 8. How does cartilage grow? 9. What gives bone flexibility? 10. What gives bone strength? 11. Name the 3 bone
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NRS 339L: Hyperglycemia Cindy Clair & Sara Scaggs Northern Kentucky University 1. Type 1 Diabetes: Formerly known as juvenile onset diabetes or insulin-dependent diabetes. Type 1 diabetes is an immune-mediated disease. The body’s own T cells attack and destroy pancreatic beta (B) cells‚ which are the source of insulin. In addition‚ autoantibodies to the islet cells cause a reduction of 80-90% of normal B cell function before hyperglycemia and other manifestations occur. (Mosby‚ 2011)
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