Biology 3201 1. Unit 1- Maintaining Dynamic Equilibrium II Ch. 12 – The Nervous System (pp. 390-419) 12.1 – Structure of the Nervous System nervous system: a high-speed communication system which delivers information to and from the brain and spinal cord and all over the body. In any nervous system‚ there are 4 main components: (1) sensors: gather information from the external environment (sense organs) (2) conductors: carry information from sensors to modulators or from modulators to effectors (nerves)
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The endocrine system The endocrine system is a collection of ductless glands which are positioned through the whole body. The endocrine glands pass their secretions of hormones directly into the blood stream so that they are always adjacent to blood vessels. Hormones are chemicals in the body produced and secreted in the body that regulate the function of a particular tissue or organ (Bing dictionary). These chemical messengers transfer information from one set of cells to another. Despite many
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The Lymphatic System And Immunity The cells‚ tissues‚ and organs of the lymphatic system play a central role in the body’s defenses against a variety of pathogens‚ or disease-causing organisms. Acts against environment hazards‚ various pathogens‚ and internal threats. Lymphocytes (primary cell) are vital to or overcoming infection and disease. Lymphocytes respond to invading pathogens‚ abnormal body cells‚ and foreign proteins. They act to eliminate these threats or render them harmless
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COMPARISO BETWEEN DIFFERENT TYPES OF OPERATING SYSTEMS These tables provide a comparison of operating systems‚ listing general and technical information for a number of widely used and currently available PC and handheld (including smartphone and tablet computer) operating systems. The article‚ usage share of operating systems provides a broader‚ and more general‚ comparison of operating systems that includes servers‚ mainframes and supercomputers. Because of the large number and variety of
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The Immune System CHAPTER 4 Learning objectives • By the end of this chapter‚ students should be able to : i) Differentiate the three line of defense system in the human body ii) Describe the agglutination process in the case of the ABO blood group iii) Differentiate between active and passive immunization iv) Discuss the homeostatic imbalances in the immune system Introduction • Barriers help an animal to defend itself from the many dangerous pathogens it may encounter • The immune
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Muscular system is the system of Human Body that provides motor power for all movements of body parts. Muscular system is composed of special tissue called muscular tissue. Muscles have the ability to contract actvely to provide the force for movements of body parts. Muscular system is an important system of human body because without it‚ life will completely stop. Muscles produce not only those movements that are under the control of our will and that we can see and feel‚ but also those movements
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Woodward‚ LaToya Q. July 22‚ 2014 AB140: Introduction to Management Unit 6 Assignment When operating a successful business there must be a type of control system to assure the organization is kept together and headed in the right direction to accomplish achievements and/ or goals. A control system consists of four steps that must correlate to sustain balance within the organization. The four steps of control consist of setting performance settings‚ measuring performance‚ likening performance
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List of Skeletal System Diseases The 206 bones of the skeletal system provide a strong framework upon which muscles‚ tissues and organs can attach. This structure also protects your internal organs and allows your body to move around freely. Like any other body system‚ however‚ disease can affect your skeletal system. Arthritis Arthritis is an inflammatory condition that affects your joints‚ such as the knees‚ or a portion of your spinal column. Typical symptoms of this condition include joint
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per year and is dependent upon both far rowing rate and litter size. In order to achieve optimal reproductive rates‚ both the anatomical and physiological workings of the reproductive system must function properly. A basic understanding of the anatomical and physiological function of the female pig reproductive system can aid producers in anticipating and troubleshooting reproductive problems‚ and in facilitating decisions which impact performance of the breeding herd. This article introduces the reader
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Essay 3 Shubham Tyagi How do our sensory systems work? Write about taste‚ sight‚ hearing and touch. Introduction Sensory systems are important to us; they let us perceive the environment. The senses can be broadly divided in to the sense of touch‚ smell‚ taste‚ vision and hearing. The seemingly simple perception is in fact not as simple as it sounds there is a lot of chemistry
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