BIOLOGY 3UU3 - Winter Term II - 2012 Animal Physiology: Regulatory Systems Instructor: C. David Rollo (rollocd@mcmaster.ca) Lectures: (rollocd@mcmaster.ca) Course Coordinator: Marvin Gunderman Wed. 5:30‚ BSB 147 (gundermn@mcmaster.ca) Teaching Assistants Chris DeJong Thur. 5:30‚ BSB 147 If the course is full‚ I cannot help you to get a seat. If the course is close to capacity I do not provide permissions
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Endocrine Vs Nervous System The endocrine system acts with nervous system to coordinate the body’s activities. Both systems enable cells to communicate with others by using chemical messengers. The endocrine system uses chemical messengers called hormones that are transported by the circulatory system (blood). They act on target cells that may be anywhere in the body. The endocrine system is slower than the nervous system because hormones must travel through the circulatory system to reach their
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primarily in that certain causes of imbalance may be corrected through endocrine intervention. o Seen when homeostasis is being thrown out of balance due to hormonal causes 5. Parts of the Endocrine System- •pituitary gland‚ hypothalamus‚ and
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Thursday‚ July 11‚ 2013 This activity provides a simulated experiment on weight regulation in rats. The Hypothalamus * What are the two techniques used to study hypothalamic dysfunction? How do they differ? The two techniques used to study hypothalamic dysfunction are stimulation and destruction. To simulate the hypothalamus a small wire probe is inserted into the hypothalamus and a weak but constant current is passed through its insulated tip. Generally‚ simulation makes the controlling
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fastest reaction time‚ best coordination‚ and then the most interesting the highest testosterone secretion? This is all controlled by a group of cells called the suprachiasmatic nucleus. The suprachiasmatic nucleus or SCN is a part of the hypothalamus and the main control center of the circadian rhythms of sleep and temperature. It is located above the opt chiasm. Any damage to the SCN results in less consistent body rhythms that are no longer synchronized to environmental patterns of light
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puberty and an absent sense of smell. Although the disease is not life threatening‚ somebody with kallmann’s syndrome has an hormonal imbalance hypogonadotropic hypogonadism due to GnRH deficiency because a small area of his or her brain called the hypothalamus is unable to work properly. Specialised hormone replacement therapy is available to treat absent puberty. A case of 23 year old female presented with primary amenorrhea‚ poor pubertal development and with absent sense of smell. She was
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Enkephalins and Endorphins Do you have an experience that you cut your finger‚ it is painful in the few minutes‚ after that‚ it stops that feeling. Do you know why? This related a kind of hormone called opioid peptides. Their function is as j nanalgesic hormones. Opioid neuropeptides were first discovered in 1974 by two independent groups of investigators: John Hughes and Hans Kosterlitz of Scotland isolated — from the brain of a pig，called enkephalins.1 Around the same time‚ in a calf brain‚
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Mechanism of melatonin stimulation of growth hormone release via somatostatin inhibition Joseph Angelo Israel Peguit University of the Philippines in the Visayas Cebu College Natural Sciences and Mathematics Division Abstract Secretion of growth hormone is affected by two primary hormones: Growth hormone-releasing hormone and somatostatin. The former is the primary stimulant to promote growth hormone secretion while the latter is the primary inhibitor that prevents growth hormone secretion
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Package Title: Testbank Course Title: pap13 Chapter Number: 18 Question type: Multiple Choice 1) Which of the following is NOT a function of a hormone? Regulates chemical composition and volume of the internal environment Regulates metabolism Regulates 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
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BASIC CONCEPTS ENDOCRINE SYSTEM :- In physiology‚ the endocrine 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
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