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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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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Endocrine‚ Respiratory‚ and Cardiovascular Disorders Also referenced from Medical Terminology and Anatomy class. This worksheet consists of 50 multiple choice questions worth 2 points each for a total of 100 points. Once you have completed the worksheet and are satisfied with your answers‚ transfer those answers to an assessment with the same title. The assessment will be made available by Friday‚ July 6th. Due Date: 16th no later than 11:59 PM 1. What happens when you breathe in?
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Through endocrine signaling‚ the signaling molecule or hormone is produced by a gland and discharged into the blood where it travels until it reaches certain blood cells distant from its place of origin on which it exerts its action. This is a long distance communication process. The signaling molecule is mainly of protein origin‚ although there is also a varied range of steroidal hormones. (ENDOCRINE SIGNALLING: Image from University of Kent https://moodle.kent.ac.uk/external/mod/book/view
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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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Lab 1 – Exercise 4: Endocrine System Name: Kathryn Marso ACTIVITY 1: Metabolism and Thyroid Hormone Part 1: Chart 1: Effects of Hormones on Metabolic Rate | | Normal Rat | Thyroidectomized Rat | Hypophysectomized Rat | BaselineWeightMl O2 used in 1 minuteMl O2 used per hourMetabolic ratePalpation results | 250.9 grams 7.1 ml 426 ml 1697 ml O2/kg/hr | 245.7 grams 6.2 ml 372 ml 1514 ml O2/kg/hr | 244.6
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Chapter 16: Endocrine System For this assignment‚ please read the chapter and answer the questions below. Please type your answers in red or blue color. Please note that points may be deducted if answers are not submitted in these colors. There is a tutorial on the endocrine glands in Blackboard under the Lab Tutorial button. Use it to study the glands. Under the External Links button The nervous and endocrine systems maintain homeostasis in the body. The nervous system is a fast but short-lived
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physioex 9.0 Review Sheet Exercise 4 Endocrine System Physiology Name Laura Bauer Lab Time/Date Thursday 5:30-7:30 Activity 1 Metabolism and Thyroid Hormone Part 1 1 Which rat had the fastest basal metabolic rate (BMR)? The Normal rat had the fastest BMR. 2 Why did the metabolic rates differ between the normal rat and the surgically altered rats? How well did the results compare with your prediction? ___ The BMRs differed because the surgically altered rats were missing
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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 by the Nervous and Endocrine Systems 2) When a hormone is present in excessive levels‚ the number of target-cell receptors may decrease. This is called receptor recognition. sensory adaptation. paracrine regulation
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