Visayas Cebu College Natural Sciences and Mathematics Division Abstract Secretion of growth hormone is affected by two primary hormones: Growth hormone-releasing hormone and somatostatin. The former is the primary stimulant to promote growth hormone secretion while the latter is the primary inhibitor that prevents growth hormone secretion. Many studies have already shown that melatonin stimulates secretion of growth hormone via somatostatin inhibition but its mechanisms remain unknown. I
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or tracheostomy. Ventilator-associated pneumonia (VAP) results from the invasion of the lower respiratory tract and lung parenchyma by microorganisms. Intubation compromises the integrity of the oropharynx and trachea and allows oral and gastric secretions to enter the lower airways. Epidemiology Ventilator-associated pneumonia (VAP) is a complication in as many as 28% of patients who receive mechanical ventilation. The incidence of VAP increases with the duration of mechanical ventilation. Estimated
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Large intestine 2. What product is secreted by the encircled cells? A) saliva B) testosterone C) sperm D) sebum E) sweat 3. What process occurs in the region of the structure indicated by the “star”? A) Absorption B) Secretion C) Diffusion D) Filtration E) Neurotransmission 4. Identify the encircled structure. A) Primordial follicle B) Primary follicle C) Secondary follicle D) Graafian follicle E) None of the above 5. All of the follo
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DIGESTION OF CARBOHYDRATES Digestion of carbohydrate begins in the mouth‚ with the secretion of the enzyme salivary amylase from the serous cells of the salivary gland. This enzyme breaks starch and glycogen into disaccharides. The mucous cells of the salivary gland secrete a mucus‚ which causes the food to stick together‚ and acts as a lubricant to aid in swallowing. The salivary glands are grouped into three categories: the parotid gland‚ submandibular glands‚ and sublingual‚ all located
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(TSH) is produced when the hypothalamus excretes thyrotropin-releasing hormone (TRH). The secretion of TRH triggers the pituitary gland to release TSH. TSH then activates a release of triiodothyronine (T3) and thyroxine (T4)‚ controlling the body’s metabolism. When T3 and T4 levels rise‚ the secretion of TRH and TSH decrease. When thyroid hormone levels decline‚ there is an increase in TRH and TSH secretion (Buttaro‚ Trybulski‚ Bailey‚ & Sandberg-Cook‚ 2011). Hypothyroidism is primarily diagnosed
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body by selectively excreting or retaining various substances according to specific body needs. The process of urine formation and adjustment of blood composition involves three processes: glomerular filtration‚ tubular reabsorption‚ and tubular secretion. The first part of the process of urine formation occurs in the glomeruli which act as filters‚ allowing water‚ glucose‚ salt and waste materials to pass through to the Bowman’s capsule but preventing and red blood cells and plasma proteins to pass
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Chapter Number: 18 Question type: Multiple Choice 1) Which of the following is NOT a function of a hormone? Regulates chemical composition and volume of the internal environment Regulates metabolism Regulates glandular secretions Produces electrolytes Controls growth and development Answer: d Difficulty: Easy Learning Objective 1: 18.1 Compare control of body functions by the nervous system and endocrine system. Section Reference 1: 18.1 Comparison of Control
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the bulk of actual sweat is produced by simple sweat glands called eccrine glands‚ apocrine glands in the skin act primarily as scent glands. Apocrine glands are considerably larger‚ are more deeply embedded in the skin‚ and produce a much thicker secretion than eccrine glands. Rather than cooling the body‚ the primary function of apocrine sweat glands is to produce a sexual scent that is as individual as a fingerprint. These glands become active once puberty sets in and play a vital part in sexual
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Some other functions that ghrelin has shown to have include; growth hormone release‚ glucose metabolism‚ gastric acid secretion‚ gastrointestinal motility‚ peripheral signalling & feeding behaviour. Since it promotes fat storage ghrelin has a role in body weight regulation which appears to be more complex than initially proposed. Ghrelin also protective effects on the cardiovascular
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The secretion yielded gram-positive cocci after 2-day incubation at 37°C on 5% sheep-blood agar under anaerobic atmosphere.Biochemical testing gave a positive result of α hemolysis and a negative result for production of catalase. The cocci wereidentified by using
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