Unit 2 homeostasis and adaptation
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The document discusses the benefits of exercise for mental health. Regular physical activity can help reduce anxiety and depression and improve mood and cognitive function. Exercise causes chemical changes in the brain that may help protect against mental illness and improve symptoms.
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Cells and its components(Anatomy) Easy explanation
Cells and its components,discussion on cell membrane, cytoplasm, nucleus with pictures....
easy explanation of anatomy topic for 1 st year GNM & B.Sc nursing students...
Comment to get explanation on your required topics.....
please like and share and follow.....
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The nervous system is made up of the central nervous system (brain and spinal cord) and the peripheral nervous system. The central nervous system contains approximately 10 million sensory neurons that send information to the brain and 500,000 motor neurons that control muscles and glands. The brain is protected by three layers of tissue called meninges and cerebrospinal fluid. The brain controls functions like sensation, memory, movement, vision, respiration, temperature regulation and more. The spinal cord transmits signals between the brain and body and contains sensory and motor neurons.
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Biological tissue is a collection of interconnected
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organism.
In other words, it is a group of cells working together mainly inside an organ.Epithelial cells cover or line all body surfaces, cavities and tubes. So, These are called covering epithelia.Epithelial cells form the functional units of secretory glands. So, These are called glandular epithelia.
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Blood consists of plasma and formed elements including red blood cells, white blood cells, and platelets. It functions to transport oxygen, nutrients, waste, hormones and more throughout the body. Red blood cells contain hemoglobin which carries oxygen. White blood cells help fight infection. Platelets assist in blood clotting. The document discusses blood composition and formation, cell types and functions, hemostasis, and blood groups.
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The skeletal system is composed of bones, cartilage, and joints. It provides structure, protection, movement, and blood cell production. There are two types of bones - compact and cancellous - and three types of cartilage - hyaline, fibrous, and elastic. The skeleton is divided into the axial skeleton (skull, vertebral column, rib cage) and appendicular skeleton (shoulder girdle, upper limbs, pelvic girdle, lower limbs). Joints allow movement between bones. Together, the skeletal system performs vital functions for the human body.
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2) Cells and proteins that form the second line of defense, including phagocytes, complement system, inflammation and fever.
3) The immune system which forms the third line of defense and has both innate/nonspecific and adaptive/specific components like humoral and cell-mediated immunity that provide long-lasting protection against pathogens.
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The document discusses the benefits of exercise for mental health. Regular physical activity can help reduce anxiety and depression and improve mood and cognitive functioning. Exercise causes chemical changes in the brain that may help protect against mental illness and improve symptoms.
Microbiology in every day life cna 2
The document discusses the benefits of exercise for mental health. Regular physical activity can help reduce anxiety and depression and improve mood and cognitive functioning. Exercise causes chemical changes in the brain that may help protect against mental illness and improve symptoms.
Defense mechanisms of the body cna
The document discusses the benefits of exercise for mental health. Regular physical activity can help reduce anxiety and depression and improve mood and cognitive functioning. Exercise boosts blood flow and levels of neurotransmitters and endorphins which elevate and stabilize mood.
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The document discusses various methods for controlling microbial growth, including physical methods like heat, radiation, and filtration, as well as chemical disinfectants and antiseptics. It explains the growth cycles and doubling times of different bacteria and how factors like nutrients, temperature, and pH can affect bacterial growth. The goal of controlling microbial growth is to destroy pathogens, prevent disease transmission, and eliminate microbes that can contaminate foods, water, and other substances.
Introduction to microbiology cna
This document provides an introduction to microbiology. It defines microbiology as the study of microorganisms too small to be seen with the naked eye, including their activities and influences. It explains that microbiology is important because infectious diseases cause significant global mortality and morbidity. The document also outlines the objectives of the lecture, which are to define key microbiology terms, explain the importance to nursing, list virus and nutrient properties, and classify bacteria by nutritional requirements.
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