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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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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Pituitary: The Master Gland 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
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body is found in the thyroid gland‚ but is found also in the blood and muscles. The body contains approximately 20 to 30 mg of iodine which is mostly stored in the thyroid gland located in front of the neck. Food sources: Milk is the major source‚ fish from the sea‚ ‚ shell fish‚ fish liver oil‚ sunflower seeds‚ yogurt(low fat) egg‚ strawberries‚ mozzarella cheese and iodized salt. Seaweed is also a good source of iodine. Function : Help ensure proper thyroid gland functioning. Keeps hair‚ skin
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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 hormones from the adrenal cortex. Follicle-stimulating hormone (FHS) – Development of egg-containing follicles in ovaries; stimulates follicular cells to secrete estrogen; in males
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Hypothalamus Secreted hormone | Abbreviation | Produced by | Effect | Thyrotropin-releasing hormone (Prolactin-releasing hormone) | TRH‚‚ or | Parvocellular neurosecretory neurons | Stimulate thyroid-stimulating hormone (TSH) released fromanterior pituitary (primarily) Stimulate prolactin release from anterior pituitary | Dopamine (Prolactin-inhibiting hormone) | DA or PIH | Dopamine neurons of the arcuate nucleus | Inhibit prolactin released from anterior pituitary | Growth hormone-releasing
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