...functions of the following hormones for both men and women. Testosterone: For men, testosterone is the primary male sex hormone. This hormone functions to develop a man’s sex characteristics, including (adult) size penis and testes, if a man does not produce enough or any testosterone can maintain child-size genitals. Also, testosterone supports the final stages of sperm production; men who produce little to no sperm are considered infertile. Erectile function is also powered by testosterone, it is vital for the growth and development of “erectile tissues.” The ability to achieve and maintain an erection is also influenced by testosterone, by increasing the activity of a molecule that helps to regulate the movement of smooth muscles. The function of testosterone in a woman’s body is less known. However, testosterone does play a role in regulating female sexual function, such as desire, arousal and orgasms. It also found that this hormone affects the function of any female reproductive organs such as the clitoris, uterus, vagina, and ovaries. Although women with low testosterone levels don’t experience sexual dysfunction, there has also been evidence that testosterone levels rise in when reacting to sexual stimuli. Studies have shown when women masturbated to orgasm, the women's testosterone levels increased after orgasm. Vasopressin: Vasopressin is made in the brain in both men and women. However, the male hormone testosterone working together with vasopressin greatly enhances one...
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...Nutrition for Performance CRN: 6978 October 7, 2013 ------------------------------------------------- Testosterone ------------------------------------------------- History & Uses Scott Livingston How did knowledge of testosterone come about? Well, in 1849 Arnold Berthold, a German scientist conducted the first formal experiment pertaining to hormones. He noticed that chickens that were castrated during development grew up to be passive (lacking fighting and mating behaviors) compared to normal roosters. Arnold Berthold decided to implant testes into the abdomens of castrated chickens. The chickens with implanted testes grew up to behave like normal roosters. Thus, Berthold concluded that the testes much secret some sort of substance since they were not connected to nerves. He said, “ The testes act upon the blood, and the blood acts upon the whole organism.” (Berthold, 1849). In 1889 Charles-Édouard Brown-Séquard, a Harvard professor, decided to inject himself with substance containing extracts from guinea pig and dog testicles; he called this concoction a “rejuvenating elixir” (Brown-Séquard, 1889). Brown-Séquard published in The Lancet that his energy, vigor, and overall health were restored, but the effects did not last long; Brown-Séquard attributed this to placebo effect. Because of these findings, Brown-Séquard was mocked by his colleagues, forcing him to give up on his research. In 1927 Fred C. Koch, a professor at the University of Chicago, realized...
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...Robert Stark Psychology Final Paper The Biological and Cultural Forces that Differentiate Males and Females Males and females have been different throughout history. The question we study is why and what drives them to be different. There are two forces that make us unique, which are biological and cultural. Studies show that male selections throughout the world are being analyzed studies done by scientists, biologists and sociologists to psychologists. Three books I used to understand this question are “The Third Chimpanzee: The evolution and future of the human animal” by Jared Diamond, “Same Difference: How gender, myths are hurting our relationships, our children, and our jobs” by Rosalind C. Barnett, and “Our Kind” by Marvin Harris. Some questions aren’t just about the biological and cultural aspect but about the social norms as well. In what ways are males and females different? Also what ways are they similar? These questions all can be answered going back to the beginning of time. Evolution is something we need to understand because it is responsible for the observable differences between males and females. A question that everyone wonders is, how did we get here? Jared Diamond’s “The Third Chimpanzee” answers this question. A strong theory comes from Charles Darwin’s theory of natural selection and adaptation. Even though species are all different in its own nature they play a special role in life. The species that have the traits to allow them to...
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...Maria Fernanda Paredes 10 June 2015 The Difference between Male and Female Brain in the Workplace Human beings are the main creature on the earth because they are rational people with an amazing knowledge which has been demonstrated since they establish as a society by implementing new science areas, developing more technology day by day and so on. Even though male and female have the same purpose and thoughts to be better as a person and as a society, they also show to be different not only physically but also in intellectual knowledge primarily. And hence, both of them have been studied for many scientist through the years because it is fairly important to understand the similarities and dissimilarities among them in order to assimilate the especial abilities that they possesses in opposite areas such as engineering or psychology. This essay will give a deeper look at different kind of abilities between male and female that are important to select professional areas of study such as Psychology and Engineering. To make a fair comparison the male brain vs female brain as left hemisphere and right hemisphere, that find a specific characteristics developed in each of them. Nevertheless, students who are currently thinking about to choose a perfect major should know which career must be adequate for them considering their aptitudes and skills that they need and they hold. Through scientific testing it has proven what people already know for some time: that the female...
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...models Motivational theories A class of theories about why people do things seeks to reduce the number of factors down to one and explain all behavior through that one factor. For example, economics has been criticized for using self-interest as a mono-motivational theory. Mono-motivational theories are often criticized for being too reductive or too abstract. Conscious and unconscious motivations A number of motivational theories emphasize the distinction between conscious and unconscious motivations. In evolutionary psychology, the "ultimate", unconscious motivation may be a cold evolutionary calculation, the conscious motivation could be more benign or even positive emotions. For example, while it may be in the best interest of a male's genes to have multiple partners and thus break up with or divorce one before moving onto the next, the conscious rationalization could be, "I loved her at the time". Freud is associated with the idea that human beings have many unconscious motivations that cause them to make important...
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...THE REPRODUCTIVE SYSTEM JASMIN CAS TABLE OF CONTENTS Task 1- 1.1 | The male reproductive system | | 1.1 | The female reproductive system | | 1.2 | The function of Testosterone, Oestrogen, Progesterone | | 1.3 | The human menstrual cycle | | Task 2 – 2.1 | The diagram of the journey of the sperm cell for fertilization | | 2.1 | The diagram of the journey of egg cell for fertilization | | 2.2 | The process of fertilization and implantation | | 2.3 | Diagram of the early stages of a developing embryo | | 2.4 | The importance of the placenta | | 2.5 | The role of the following hormone during birth and lactation | | | Reference | | | | | | | | | | | | | | | | | THE REPRODUCTIVE SYSTEM Sexual Reproduction Like all living things, humans have to reproduce to ensure the survival of the species. Reproduction is the role of the reproductive system. The female reproductive system lies mainly inside the body, whereas much of the male system is outside the body. Each reproductive system produce special cells, the sex cells called gametes (sperms and eggs). From these gametes, the typical traits of the parents are conveyed to their brood. The genes are the one that stored the hereditary information on the chromosomes...
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...ANIMAL REPRODUCTION & DEVELOPMENT Dr Ilma • The two earthworms in this picture are mating • Each worm produces both sperm and eggs, which will fertilize – And in a few weeks, new worms will hatch Asexual And Sexual Reproduction • Both occur in the animal kingdom • Asexual reproduction is the creation of new individuals – Whose genes all come from one parent • Sexual reproduction is the creation of offspring – By the fusion of male and female gametes to form a zygote Mechanisms of Asexual Reproduction • Many invertebrates reproduce asexually by fission – The separation of a parent into two or more individuals of approximately the same size Mechanisms of Asexual Reproduction • Budding – In which two new individuals arise from outgrowths of existing ones • A two-step process – Fragmentation • The breaking of the body into several pieces, some or all of which develop into complete adults – Regeneration • Follows fragmentation • the regrowth of lost body parts • Some animals reproduce by parthenogenesis – A process in which an egg develops without being fertilized • Among vertebrates, several genera of fishes, amphibians, and lizards, including whiptail lizards – Reproduce exclusively by a complex form of parthenogenesis Ovary size (a) Both lizards in this photograph are C. uniparens females. The one on top is playing the role of a male. Every two or three weeks during the breeding season, individuals switch sex roles...
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..."Why is Sex Fun? is the best book on the subject I've read. This lively exploration of our sexual heritage offers fascinating reading for anyone curious about why lovers do what they do." -Diane Ackerman, author of A Natural History of the Senses "I am so jealous of Jared Diamond, for he writes with such an elegant simplicity! Here, he takes a loot at the endlessly fascinating topic of human sexuality His convincing arguments should persuade xm that there are very special reasons why we evolved to use sex for recreation as well as for procreatim whereas most other mammals are denied that pleasure.... It is a great little book, by one of the worlds foremost biological philosophers." -ROGER Shohl Professor of Physiology Monash University Australia "Once again Jared Diamond provides us with answers to questions we may never have stopped to ask, but wish we had. In this long essay Diamond explains that recreational sex, while not unique to humans, is a rare behavior in the animal world. Above all, we learn, sexual activity divorced fron procreation is not only part of what it is to be human, but the very crux of our evolutionary success." -Bettyaxn Kevles. author of Naked to the Bonn Medical Imaging in the Twentieth Centnty The Science Masters Series is a global publishing vonture consisting of original science books written by leading scientists and published by a worldwide team of twenty-six publishers assembled by John Brockman. The series was conceived by Anthony Cheetham of Orion...
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...BIO 210 Test 2 Study Guide: Chapter 4: 1. Define: Cell – basic unit of life Tissue – groups of similar cells Organ – contains 2 or more types of tissues Organ System – organs that work closely together 2. What are the common functions of: Epithelial tissue – covers and lines things – protects. Connective tissue – binds and supports – provides shape and structure. Muscle Tissue – contraction of muscles and movement. Nerve Tissue – sends signals and impulses – communication. 3. Be able to compare and contrast examples of each tissue type. Know identifying features of each tissue. EPITHELIAL TISSUE – 6 KINDS - all have free space at their apical surface. Simple squamous epithelial tissue – lung and kidney glomerulus – 1 layer of flattened sacs – very thin. Stratified squamous epithelial tissue – epidermis – multiple layers of flattened sacs. Simple cuboidal epithelial tissue – kidney tubules – 1 layer – rounded cube shaped cells. Simple Columnar epithelial tissue – digestive or GI tract – 1 layer – column shaped cells – nuclei at basal membrane. Pseudostratified columnar epithelial tissue – trachea lining – false multiple layers of column shaped cells – cilia (hair) – goblet cells. Transitional epithelial tissue – urinary bladder – domed shaped apical cells – looks like forks in the road. CONNECTIVE TISSUE – 11 KINDS – Areolar connective tissue – papillary region of the dermis – fibroblasts, collagen and elastic fibers – looks like a spider web. ...
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...there is not enough thyroid-stimulating hormone available. This insufficiency of thyroid-stimulating hormone could be a result of a defect in the anterior pituitary gland. Secondary hypothyroidism may also be caused by an insufficient amount of thyrotropin-releasing hormone, which most likely occurs due to impairment of hypothalamus functioning. Most patients tend to have a diagnosis of primary hypothyroidism. Most frequently this disease is found in women over the age of 60. Autoimmune disorders put a patient at an even higher risk for developing hypothyroidism, as does a family history of autoimmune disorders. In order to test for levels of thyroid hormone or thyroid-stimulating hormone within the body a blood test may be done. If a low level of thyroxine and an increased level of thyroid-stimulating hormone were the results of the blood test, this would be indicative of hypothyroid disease. There are various symptoms of hypothyroid disease and the severity of these symptoms often depends on how deficient the patient is in the thyroid hormone. Symptoms include such manifestations as weariness, lethargy, a...
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...Motivation is the driving force that causes the flux from desire to will in life. For example, hunger is a motivation that elicits a desire to eat. Motivation has been shown to have roots in physiological, behavioral, cognitive, and social areas. Motivation may be rooted in a basic impulse to optimize well-being, minimize physical pain and maximize pleasure. It can also originate from specific physical needs such as eating, sleeping or resting, and sex. Motivation is an inner drive to behave or act in a certain manner. These inner conditions such as wishes, desires and goals, activate to move in a particular direction in behavior. Contents 1 Types of theories and models 1.1 Motivational theories 1.2 Conscious and unconscious motivations 2 Psychological theories and models 2.1 Rational motivations 2.2 Intrinsic and extrinsic motivation 2.3 Push and pull 2.4 Self-control 2.5 Drives 2.6 Incentive theory 2.7 Escape-seeking dichotomy model 2.8 Drive-reduction theory 2.9 Cognitive dissonance theory 2.10 Content theories 2.10.1 Maslow's hierarchy of needs 2.10.2 Herzberg's two-factor theory 2.10.3 Alderfer's ERG theory 2.10.4 Self-determination theory 2.11 Temporal motivation theory 2.12 Achievement motivation 2.13 Cognitive theories 2.13.1 Goal-setting theory ...
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...Motivation is a theoretical construct, used to explain behavior. It is the scientific word used to represent the reasons for our actions, our desires, our needs, etc. Motives are hypothetical constructs, used to explain why people do what they do. A motive is what prompts a person to act in a certain way or at least develop an inclination for specific behavior.[1] For example, when someone eats food to satisfy the need of hunger, or when a student does his/her work in school because they want a good grade. Both show a similar connection between what we do and why we do it. According to Maehr and Meyer, "Motivation is a word that is part of the popular culture as few other psychological concepts are".[2] Wikipedia readers will have a motive (or motives) for reading an article, even if such motives are complex and difficult to pinpoint. At the other end of the range of complexity, hunger is frequently the motive for seeking out and consuming food.Types of theories and models[edit] Motivation theories can be classified on a number of basis. Natural vs. Rational based on whether the underlying theory of human Cognition is based on natural forces (drives, needs, desires) or some kind of rationality (instrumentality, meaningfulness, self-identity). Content vs. Process based on whether the focus is on the content ("what") motivates vs process ("how") motivation takes place. Monist and pluralistic motivational theories[edit] A class of theories about why people do things seeks...
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...Unit 5: Anatomy and Physiology for Health and Social Care. Name: Fatimah Al_Asadi Teacher name: Miss Bull Name: Fatimah Al_Asadi Teacher name: Miss Bull Aim and purpose This unit aims to enable learners to understand aspects of the anatomy and physiology of human body systems. Learners will be able to gain an overview of the organisation of the human body before looking at how body systems work together to provide energy for the body. Learners will have the opportunity to investigate how homeostatic mechanisms operate in the body. Unit introduction This unit introduces core knowledge of cellular structure and function, and the organisation of the body as a whole, and then builds on this to develop a more detailed knowledge of the fine anatomy and physiology of the systems involved in energy metabolism. Learners will examine the homeostatic mechanisms involved in regulating these systems to maintain health. Learners will be given the opportunity to undertake practical activities which will require them to take measurements of the cardio-vascular system, the respiratory system and of body temperature, using noninvasive techniques to investigate normal responses to routine variations in body functioning. This unit provides the core understanding of human physiology that underpins the study of the specialist physiology units within this programme. The unit also provides an overview of body functioning that is valuable for anyone working or intending to work in a...
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...LECTURE NOTES For Nursing Students Human Anatomy and Physiology Nega Assefa Alemaya University Yosief Tsige Jimma University In collaboration with the Ethiopia Public Health Training Initiative, The Carter Center, the Ethiopia Ministry of Health, and the Ethiopia Ministry of Education 2003 Funded under USAID Cooperative Agreement No. 663-A-00-00-0358-00. Produced in collaboration with the Ethiopia Public Health Training Initiative, The Carter Center, the Ethiopia Ministry of Health, and the Ethiopia Ministry of Education. Important Guidelines for Printing and Photocopying Limited permission is granted free of charge to print or photocopy all pages of this publication for educational, not-for-profit use by health care workers, students or faculty. All copies must retain all author credits and copyright notices included in the original document. Under no circumstances is it permissible to sell or distribute on a commercial basis, or to claim authorship of, copies of material reproduced from this publication. ©2003 by Nega Assefa and Yosief Tsige All rights reserved. Except as expressly provided above, no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopying, recording, or by any information storage and retrieval system, without written permission of the author or authors. This material is intended for educational use only by practicing health care workers or students and faculty...
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...How to go to your page This eBook set contains two volumes. The main content pages are contiguously numbered: use the Table of Contents to find those page numbers. The front matter pages and indices are labeled with the Volume number and page separated by a colon. For example, to go to page vi of Volume 1, type Vol1:vi in the “page #” box at the top of the screen and click “Go”. To go to page vi of Volume 2, type Vol2:vi in the "page #" box… and so forth. Encyclopedia of Human Body Systems This page intentionally left blank Encyclopedia of Human Body Systems VOLUME 1 Julie McDowell, Editor Copyright 2010 by ABC-CLIO, LLC All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, or transmitted, in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, except for the inclusion of brief quotations in a review, without prior permission in writing from the publisher. Library of Congress Cataloging-in-Publication Data McDowell, Julie. Encyclopedia of human body systems / Julie McDowell. p. cm. Includes bibliographical references and index. ISBN 978–0–313–39175–0 (hard copy : alk. paper) 1. Human physiology—Encyclopedias. I. Title. QP11.M33 2011 612.003—dc22 2010021682 ISBN: 978–0–313–39175–0 EISBN: 978–0–313–39176–7 14 13 12 11 10 1 2 3 4 5 This book is also available on the World Wide Web as an eBook. Visit www.abc-clio.com for details. Greenwood An Imprint of ABC-CLIO, LLC ABC-CLIO, LLC...
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