Lymphatic system Lymphatic capillaries-Absorb excess tissue fluid and return it to the blood stream Lacteals (in small intestine) –absorb fats vin the form lipoproteins and transport them to the bloodstream Lymphoid organs lymphatic vessels are sites of production and distribution of lymphocytes‚ which help defend the body against pathogens Lymphatic vessels One- way system-The movement of fluid is dependent upon skeletal muscle contraction; when the muscles contract‚ fluid is squeezed past
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Human Science – CHAPTER 1 1. Which Organ system maintains a relatively slow-acting degree of control over most bodily functions? Endocrine System (hormones act in minutes to hours‚ in contrast to nerve impulses‚ which act in fractions of a second). 2. The esophagus and the trachea run side-by-side through the thorax. In which systems are these organs found? The esophagus belongs to the digestive system‚ and the trachea belongs to the respiratory system. (The esophagus carries food to the stomach
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The endocrine system is the collection of glands that produce hormones that regulate metabolism‚ growth and development‚ tissue function‚ sexual function‚ reproduction‚ sleep‚ and mood‚ among other things. The endocrine system is a very important system in the human body. There are many endocrine glands in this system‚ including -but not limited to- the pituitary gland‚ hypothalamus‚ pineal gland‚ thyroid gland‚ parathyroid glands‚ adrenal glands‚ pancreas‚ gonads‚ placenta‚ thymus‚ heart and gastric
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Research each of the following and write a paragraph describing the endocrine gland‚ hormone‚ target tissue‚ symptoms‚ causes‚ and treatment options. Human chorionic gonadotropin (hCG) Human chorionic gonadotropin‚ or hCG‚ is a hormone that helps with the development of an egg in a woman’s ovary‚ as well as the release of the egg during ovulation. If the body doesn’t produce enough hCG on it’s own‚ you can receive injections of it. The injections aren’t for women only‚ they can be used in men to
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Endocrine The endocrine gland system helps produce and deliver hormones. These help take control of many important body parts. It also helps your body change your calories into energy. Endocrine system is important because it impacts how your heart beats‚ how your tissues grow and even if you can have a baby. It also plays a role if you would or wouldn’t develop thyroid‚ growth disorders‚ or a host of other hormone related disorders. The glands of the endocrine system let go of specific hormones
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Invertebrate Endocrinology Overview of the Endocrine System * System of ductless glands that secrete hormones * Hormones are “messenger molecules” * Circulate in the blood * Act on distant target cells * Target cells respond to the hormones for which they have receptors * The effects are dependent on the programmed response of the target cells * Hormones are just molecular triggers * Basic categories of hormones * Amino acid based: modified amino acids (or amines)
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Chapter 46: Organization of endocrine control Two major systems evolved to communicate and coordinate body functions Nervous system Endocrine system Hormones are carried through the blod to distant target tissue where they are recognized by specific‚ high-affinity receptors These receptors may be located either on the surface of target tissue‚ within the cytosol‚ or in the target cell’s nucleus Once a hormone is recognized by its target tissue or tissues‚ it can exert its biologic action by
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for practice Final Exam consists of 100 questions Red scantron required Equal amount of questions from last 3 chapters covered. Wasn’t enough time to cover everything‚ so don’t JUST study this! DO NOT FORGET – Exam 4 due Monday at noon! Endocrine System Hormones: functions‚ where they’re secreted from‚ etc. Adrenal Glands: Cortex: Zona Glomerulosa mineralcorticoids - Aldosterone Zona Fasiculata glucocorticoids – Cortisol (synergist)‚ allows glucagon to work – sugar-preserving
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ENDOCRINE SYSTEM The endocrine system helps regulate and maintain various body functions by synthesizing (making) and releasing hormones‚ chemical messengers. The endocrine system is composed of glands that release their hormones directly into the bloodstream for chemical signaling of target cells. Endocrine glands do not have a duct system and are called ductless glands. These glands release hormones directly into the blood or lymph. These glands include the pituitary gland‚ the pineal gland
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THE NERVOUS AND THE ENDOCRINE SYSTEM. Humans need both the Nervous and the Endocrine systems basically because they do different things in different ways. They both have a co-ordination role and send instructions to other parts of the body. The nervous system does this by way of neurotransmitters‚( chemical messengers)‚ which are able to get messages through at very high speeds‚ and the endocrine system by way of hormones‚( also chemical messengers)‚ which are released from glands and travel
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