Endocrine System Is a group of specialized organs and body tissues that produce‚ store‚ and secrete chemical substances known as hormones. As the body’s chemical messengers‚ hormones transfer information and instructions from one set of cells to another. Because of the hormones they produce‚ endocrine organs have a great deal of influence over the body. Among their many jobs are regulating the body’s growth and development‚ controlling the function of various tissues‚ supporting pregnancy
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In vertebrates‚ the hypothalamus‚ located at the base if the brain‚ plays a central role in integrating the endocrine and nervous systems. The hypothalamus receives information from nerves throughout the body and the brain. (Mousa and Mousa‚ 2003) In response‚ the hypothalamus initiates endocrine signalling appropriate to environmental conditions. In many vertebrates’ nerve signals from the brain pass information to the hypothalamus about seasonal changes‚ therefore the hypothalamus regulates the
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[4] (b) State the main function of the following: (i) Chordae tendinae It holds the valves of the heart in place. (ii) Lymphocytes (iii) Beta cells of pancreas Production of insulin. [3] (c) Give the exact location of the: (i) Thyroid gland Below larynx above pharynx in front of the neck. (ii) Mitral valve. On the left side of the heart. [2] (d) Given below are sets of five terms each. In each case rewrite the terms in logical sequence as directed at the
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OBJECTIVES - Name the four major types of cells in the human body‚ and describe their defining characteristics. - Describe the distribution of water in the body‚ and define the different body fluid compartments. - Define homeostasis and explain its significance to the function of the body. Describe the role of negative feedback in homeostasis. - Describe how negative feedback systems regulate body temperature. Include the role of sensors‚ effectors‚ input‚ output‚ integrating center‚ set point
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Schuster C‚ Moar K‚ Mercer J‚ Morgan P. 2002 Pituitary Adenylate Cyclase-Activating Polypeptide Acts as a Paracrine Regulator of Melatonin-responsive cells of the Ovine Pars Tuberalis 6 7. Simmonneaux V‚ Ribelayga C. 2003 Generation of the melatonin endocrine message in mammals: A review of the complex regulation of melatonin synthesis by norepinephrine‚ peptides‚ and other pineal transmitters. Pharmacological Reviews Vol.55 No.2 8 9. Tan D‚ Manchester M‚ Flores L‚ Reiter R. 2006 One molecule‚ many derivatives:
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cells make up any glands within the body. These include sebaceous glands of the skin and glands in the intestinal lining (exocrine glands)‚ and many of the endocrine glands releasing hormones‚ such as the thyroid follicle. The function of glandular epithelial cells is directly related to their location. Exocrine glands hold secretions for linings and coverings of the body until the secretions are needed‚ at which time the cells follow the above secretion mechanisms. Endocrine glands
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Phase 1: Discussion Board: A View of the Thyroid Gland‚ the Functions of‚ and the Thyroid Hormone Phase 1: Discussion Board Connie Ann Crandell Bio142-0903A-04 Anatomy and Physiology ll Instructor: Denise Albina When observing the thyroid gland from an anatomical standpoint‚ the thyroid is located in the anterior portion of the neck and seemingly shaped similar to that of a butterfly (VH Dissector‚ 2009)the thyroid is just inferior to the larynx‚ but close to the trachea. There are
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environment surrounding the cell. Organisms: independent living things‚ simplest forms of independent life are single-celled organisms Multicellular organisms are more complex organisms‚ having many kinds of cells‚ such as muscle cells‚ nerve cells‚ and gland cells. During the development of multicellular organisms‚ each cell differentiates or becomes specialized to carry out a particular function; body is made up
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------------------------------------------------- Personality development[edit] Personality is defined as the enduring personal characteristics of individuals.[1] Although some psychologists frown on the premise‚ a commonly used explanation for personality development is the psychodynamicapproach. The term "ambot" describes any theory that emphasizes the constant change and development of the individual. Perhaps the best known of the psychodynamic theories is Freudian psychoanalysis. http://en
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Lab 1 – Exercise 4: Endocrine System ACTIVITY 1: Metabolism and Thyroid Hormone Part 1: Chart 1: Effects of Hormones on Metabolic Rate Normal Rat Thyroidectomized Rat Hypophysectomized Rat Baseline Weight Ml O2 used in 1 minute Ml O2 used per hour Metabolic rate Palpation results 250 grams 7.1 ml 426ml 1704 ml O2/kg/hr NO MASS 245 grams 6.3 ml 378 ml 1542.86 ml O2/kg/hr
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