The Endocrine System: 1. What is the Endocrine System? •The Endocrine System influences almost every cell‚ organ‚ and function of our bodies. •It is a collection of glands and organs that produce and regulate hormones in the bloodstream to control many bodily functions. •Whereas the nervous system responds to and controls body processes which occur quickly and last for a short amount of time‚ the endocrine system is responsible for many of the slow
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that secrete hormones to regulate body function Hormones: chemical messengers or regulators • they are released by cells in one part of the body and affect cells in other parts of the body to speed up or slow down processes. Endocrine Hormones – are produced in glands and secreted directly into the blood and distributed by the circulatory system. Makes hormones and regulates the pituitary gland Pineal gland (makes serotonin which regulates sleep patterns) Not a gland How do Hormones Signal Cells
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third ventricle of the brain Pineal Gland Produces amine hormone melatoin Thyroid-stimulating hormone (TSH) or thyrotropin Follicle-stimulating hormone (FSH) and Luteinizing hormone (LH) gonadotropins Posterior Pituitary (neural tissues) Neurohypophysis Adrenocorticotropic hormone (ACTH) corticotropin Prolactin (PRL) Growth hormone (GH) Oxytocin Antidiuretic hormone (ADH) Stimulates growth and energy metabolism requires intermediary
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HOROMONES * Hypothalamus Although it is part of the brain‚ the hypothalamus secretes several hormones and is very closely related to the activity of the endocrine system. * The hormones it secretes are: * Releasing hormones – stimulate the secretion of specific anterior pituitary hormones * Release inhibiting hormones – inhibit the secretion of specific anterior pituitary hormones Pituitary * A small pea-sized gland also called the hypophysis. * Located at the base
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Human Biology – Nervous System HUMAN PERSPECTIVES PAGES 70-76 p 79 Review Questions: 2-8 AYK: 2-5 2. The three structures that protect the Central Nervous System are Bone‚ Meninges and Cerebral Spinal Fluid. 3. Cerebrospinal fluid comes from the blood and circulates throughout the CNS before returning to the blood capillaries. CFS is a clear‚ watery fluid containing a few cells and some glucose‚ protein‚ urea and salts. Occupies the space between the middle and inner layer of the meninges. It
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eminence via a small tube called the infundibular stem (Pituitary stalk). The pituitary fossa‚ in which the pituitary gland sits‚ is situated in the sphenoid bone in the middle cranial fossa at the base of the brain. The pituitary gland secretes nine hormones that regulate homeostasis. Contents [hide] * 1 Anatomy * 2 Embryology * 2.1 Anterior * 2.2 Posterior * 2.3 Intermediate lobe * 3 Functions * 4 Diseases involving the pituitary gland * 5 Additional images * 6 See also
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body that deals with chemical communication by means of hormones‚ the ductless glands that secrete the hormones‚ and those target cells that respond to hormones. The endocrine system functions in maintaining the basic functions of the body ranging from metabolism to growth. The endocrine system functions in long term behavior and works in conjunction with the nervous system in regulating internal functions and maintaining homeostasis. Hormones are the chemical messengers released by specialized endocrine
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system is a system of glands‚ each of which secretes a type of hormone into the bloodstream to regulate the body. It derives from the Greek words endo meaning inside‚ within‚ and crinis for secrete. The endocrine system is an information signal system like the nervous system. Hormones are substances (chemical mediators) released from endocrine tissue into the bloodstream that attach to target tissue and allow communication among cells. Hormones regulate many functions of an organism‚ including mood‚ growth
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Human Endocrine System A system of glands and cells that make hormones that are released directly into the blood and travel to tissues and organs all over the body. The endocrine system controls growth‚ sexual development‚ sleep‚ hunger‚ and the way the body uses food. [pic] The human endocrine system modulates several processes of the body by the function of hormones. The endocrine system secretes hormones that control how bodily functions work. Thus‚ the human endocrine system watches
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contractions). In contrast‚ the endocrine system is a slow but long-lasting response that uses glands which release hormones (chemicals) into the bloodstream. Endocrine System: The endocrine system is made up of the cells‚ tissues‚ and organs that secrete hormones into body fluids such as the blood stream. What is its function? -It influences metabolic activity by means of hormones and along with the nervous system‚ it coordinates and integrates activity of body cells. ENDOCRINE GLANDS:
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