NCERT Chapter Class 12 Chapter 08 "Human Health and Disease" Biology Quick Revision Series for NEET/AIIMS by Beats for biology. They include malaria, amoebiasis, giardiasis, kala azar, Ciliary dysentery, trypanosomiasis etc. These are made by multiplication of surface antigen by genetic engineering. ... Human Health and Disease - NCERT Chapter (PDF) (Zoology) > Human Health and Disease. It is characterized by degeneration of motor nerves of brain due to reduced supply of oxygen resulting in paralytic attack of some body parts especially limb, loss of memory, speech and even death. Download Study Material for preparation of Entrance Examinations for free. The commonly used enzymes are. By removing the entire cancerous tissue and infected lymph nodes. Disease. Immunology is the science of development of immunity against particular pathogen. E.g., Hepatitis B vaccine produced from transgenic yeast. They affect the cardiovascular system, Cannabinoids, e.g. Your email address will not be published. nodes filter pathogens from the lymph and exposes them to WBC. refers to a bluish coloration of the skin and mucous membranes due to too much deoxygenated haemoglobin in the blood. Required fields are marked *. HIV is transmitted through body fluids by-, Sexual contact (most common mode of transmission) (Probability < 1 %), By mother to child by placenta (33%), by mother milk. Virus of rabies, or hydrophobia, is introduced through the wound caused by the bites of rabid animals, most commonly dogs. T. gambiense causes Gambian fever of West African sleeping sickness, which is spread by both sexes of tse-tse fly (Glossina palpalis). Blood oozes from the lesions into the air sacs, leading to haemorrhages. They are known as precipitins. to the entry of pathogens into the blood. Some newly produced WBC remain in the bone marrow to mature and specialize while others travel to the thymus to mature. : Acquired immunity is specific for specific microorganisms. Vaccination, where an attenuated pathogen is injected is a type of active immunity. with someone who has HIV or AIDS; sweat, tears or saliva etc. Depending upon the type of causative agent, communicable diseases are the following types - bacterial, viral, rickettsial, spirochaetal, protozoan, fungal and helminthes etc. He discovered the process of passive immunization and prepared the antidiphtherial serum by injecting diphtheria antigen into sheep. which recurs every fourth day, i.e., after 72 hours. is a new abnormal tissue which is capable of continued growth. Health is a state of complete physical, mental and social well being. The diseases brought about by exotoxins include tetanus, scarlet fever, diphtheria, and botulism (food poisoning). . The non-specific defence mechanisms is further of two types-. The fever is mild and seldom fatal. functional changes in tissues and organs that lead to disease. is defined as self administration of a drug for non-medical reasons. Human health and diseases - Click here Environmental issues - Click here Living world - Click here Biological classification - Click here Biomolecules- Click here Respiration in plants - Click here. Depending on their mode of action, carcinogens fall into the following main categories: Agents that can cause alterations in the genetic material (DNA), resulting in oncogenic transformation. Ringworm is contagious and is easily spread from one person to another, so avoid touching an infected area on another person. He first gave concept of digestive, metabolism and immunity. In the liver, alcohol is converted into a more toxic substance. is not encapsulated and is capable of invading adjacent tissues and distant sites. Types of Diseases. . Login. Kissing also spreads infection. are those substances which are secreted by micro-organism that inhibit the growth or destroy the other micro-organism. Important notes of Biology for NEET for Human Health and Disease are useful for all aspirants preparing for entrance exams including NEET. : Human immunological administration. The most accurate definition of the health would be: a. health is the state of body and mind in a balanced condition; b. health is the reflection of a smiling face; c. health is a state of complete physical, mental and social well-being; d. health is the symbol of economic prosperity. In the later part of pregnancy, due to age or injury, the placenta becomes permeable to certain pathogens such as virus of german measles and bacteria of syphilis. Sterilization is the process that kills all forms of pathogens, including spores. It constitutes about 50% of the lymphoid tissue in human body. are also called as mood altering or neurological drugs. These are caused by protists. HIV is not transmitted through ordinary contact (hugging, dancing, talking, touching etc.) OR HUMORAL IMMUNITY. diabetes, inflammatory diseases of joints. rheumatic heart disease, hypertensive heart disease and coronary heart disease. Results from a clinical or inapparent infection by a microorganism. This is called. Proteinous substance which stimulates the production of antibodies. During this period, pathogens multiply. Toxins are of 2 types : endotoxin and exotoxin. Hypertensive heart disease are caused by hypertension, i.e., increased blood pressure. Benign tumor is a large localized mass of abnormal tissue enclosed in connective tissue which does not invade adjacent tissue. Search... Post Your Enquiry. ClearIITMedical offering comprehensive up-to-date chapterwise biology study notes to crack CBSE NEET 2019 entrance exam. It is also known as. Diabetes is established by blood and urine sugar levels. The HIV virus multiplies and slowly begins to destroy the CD4 lymphocyte (T cells or helper T-cells). Abused drug include anabolic steroids, analgesics and antibiotics. He used non-poisonous leeches as an anticoagulant during surgery. It is transmitted by infected larva via contaminated food and vegetables. An antigen on the surface of these bacteria is very similar to an antigen on the surface of myocardium. He gave a scientific explanation of disease for the first time. Unlike the gene and chromosome-induced congenital defects, environmentally caused abnormalities are not transmitted to the children. Check BYJU’S for the full set of important notes and study material for NEET Biology and solve the NEET Biology MCQs to check your understanding of the subject. Bacteriolytic or Bactericidal-streptomycin, ciprofloxacin, ampicillin. This species is found only in West Africa and South America. NON COMMUNICABLE (NON-INFECTIOUS) DISEASES. Immune system is the system of animal body which protects it from various pathogens / infectious agents / allergens and cancer Immunology is the science of … : Stages in the life cycle of Plasmodium, , which cause different kinds of human malaria. Thickening or lump in the breast or any other part of the body. Download Sample PDF Tags: Human Health And Diseases by Panel Of Experts Class 12 Biology Class 11 Biology NEET Biology Class 12 Biology CBSE Class 12 Biology English Class 12 Biology Study Materials Related Class 12 Biology Books Prepare yourself for IIT JEE Advanced with intensive guidance imparted by seasoned mentors. is a state of complete physical, mental and social well being, and not merely an absence of disease or infirmity (W.H.O - 1948). are used as a medicine for depression, insomnia and other mental illness, Nicotine (alkaloid) present in tobacco stimulates the release of adrenalin and nor-adrenalin hormone by the adrenal gland. (1892) proposed that malaria is spread by blood sucking insect. They do not remain confined to one part of the body. ) develop after birth. When this infected mosquito bites a healthy person, parasites migrate into his blood with the saliva, which the mosquito injects before sucking up blood to prevent its clotting. Ch – 4 Biotechnology 21. is a blood cancer. ANTIBODY MEDIATED IMMUNE SYSTEM (A.M.I.S.) Initially within 2-12 weeks, there is no antibody production so infectivity of patients or activeness of virus is maximum in this period. Types of viral disease are-influenza, small pox, etc. It is caused by a fungus called Tinea pedis. Nov 07, 2020 - NCERT Solutions - Human Health and Diseases NEET Notes | EduRev is made by best teachers of UPSC. Some of the important measures for the prevention and control of alcohol and drug abuse among adolescents are as follows-. : The causative organisms of dysentery, cholera and typhoid enter the human digestive tract with food and water. (discovered by Issacs and Lindermann) are produced against viral infection. is a medicine that gives relief from allergy. are obtained from the flower tops, leaves, resins of the plant, Cocaine or coca alkaloid is obtained from the plant, Cocaine acts by interfering with the transport of dopamine, a neurotransmitter, Sportspersons also take cannabinoids to enhance their performance, muscle relaxation and reduce anxiety, Morphine is used as sedative and pain killer, Barbiturates, amphetamines, benzodiazepines, etc. Its transmission is direct by contaminated food. Types of disease agents are biological, nutrient, chemical, physical, mechanical etc. It is received passively by host without participation or contribution from host's immune system. The file is available in PDF format. Helminthes are multicellular parasites and includes roundworms and flatworms. Resistance developed by an individual as a result of an antigenic stimulus. It alone is capable of causing three types of malaria, viz., quartan malaria, which attacks almost daily, malignant tertian malaria, which occurs every 48 hours, but is very severe and often fatal; and irregular malaria. are retained in the bacterial cells and released when bacteria die and disintegrate. Login Student Register Register Institute. It is common in old person, mainly affecting weight bearing joints. This is helpful for aspirants of NEET and other exams during last-minute revision. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 This feature is currently in development, will be rolled out soon Study Material Also called backpeper's disease, it is caused by Giardia intestinalis. It is characterized by inflammation of the synovial membrane. Rhodesian or East African sleeping sickness, caused by. … A bacterial exotoxin which is detoxicated by special procedures to allow its safe use in immunization against the disease. The file is available in PDF format. Live your dream of studying at AIIMS with comprehensive coaching and guidance from seasoned mentors. This class conduct in Hindi and Notes Download after Class in the Form of PDF Attain This Session For Secure Maximum Marks In NEET The main harmful effects of smoking are respiratory diseases and cardiovascular disease. : Charaka (Ayu → Life, Veda → Knowledge). Rheumatic heart disease is an autoimmune disease, most common in children after a severe throat infection by certain strain of Streptococcus bacteria. E.g., Bacteriostatic - tetracycline, chloramphenicol. They may be caused by –. These diseases remain confined to the person who develops them and do not spread to others. Two tips of this molecule bind with antigen (large and complex foreign molecules mainly proteins that activate the specific immunity) like lock and key fashion and make. Immunity was defined by Sir Mac Farlane Burnet. But symptoms of diseases did not appear. is affected when immunodeficient patients are given doses of antibodies from a donor. These include heat, cold, humidity, pressure, radiation, electricity and sound. Notes of health . It usually starts in the small joints in the hand and progress to other body joints. This species is found only in the tropical region. It is a brain damage due to stoppage of blood supply resulting from cerebral thrombosis, cerebral haemorrhage etc. , which attacks every third day, i.e., after 48 hours. Nobel Prize for odorant receptor (olfaction) is given to Richard Axel and Linda B.Buck. This type of immunity is found only in vertebrates. The human body is an amazing machine. Congenital immunity or innate immunity or Non-specific immunity, Acquired immunity or Adaptive or specific immunity. Alcohol decreases the secretion of ADH from the posterior pituitary gland causing increased urine output. The epidemic typhus spreads by inhalation of dried faeces of infected lice. Table : Categories of Psychotropic Drugs, their Effects and Clinical uses. Find all the NEET Biology important questions from the Chapter Human Health and Diseases with solutions to perform better in the exam here. It is caused by intestinal endoparasite, Taenia solium. Nicotine is the substance that causes addiction to tobacco. : The pathogens may reach the humans with air and dust. Any change from the normal state that causes discomfort or disability or impairs the health is called, Time interval between the entry of pathogen and appearance of symptoms is called the. Most of the helminthes which produce diseases in man also get into the body in a similar way. They penetrate and infiltrate into the adjoining tissues and dislocate their functions. This can occur as under : Certain diseases produce sores or lesions on the skin. These vaccines are prepared by inactivating the whole pathogen but they have side effects, e.g., Oral polio vaccine (OPV), DPT. It is for the preparation of Human Health and disease. This is Human Health and Disease Notes PDF helpful for aspirants of NEET and other exams during last-minute revision. This immunity recognise and selectively eliminate the pathogen. Malaria is caused by the toxins produced in the human body by the malarial parasites, Plasmodium. It is very painful, particularly at night and make movement difficult. Contact with materials discharged from these sores or lesions brings about infection. is caused by T. cruzi and spread by Panstrongilus sp. , e.g., some growth factors and hormones. This term was given by. is a cancer of primitive mesodermal tissue like connective tissue, bone, muscle, lymph nodes etc. The pathogens of certain diseases reach the human body through some intermediate agents. Infection is transmitted by contamination. : Diagram showing inflamation in one of the lower limbs due to elephantiasis. Discrimination between self and non-self : It can recognise self (body or tissue) and non-self (foreign tissue) and respond according to them. Thank you for sharing with us about NEET BIOLOGY VIDEOS - HUMAN HEALTH AND DISEASE, your Content is awesome and informative. Human Health and Diseases PPT PDF Part 1 Human Health and Diseases PPT PDF Part 2 Human Health and Diseases PPT PDF Part 3 is the chest pain caused most often by myocardial anoxia. marijuana, hashish, charas, ganja, etc. - Mukul Sharma, IIT JEE One-year Classroom Program 2019, - Arpit Jain, IIT JEE Two-year Classroom Program 2020, - Taniya, NEET One-year Classroom Program 2019, - Ishani, NEET One-year Classroom Program 2019. Some diseases are caused by genetic disorders and lack or underdevelopment of organs. are quinine, chloroquine etc. Housefly carries the causative organisms of cholera, typhoid, dysentery and tuberculosis on the legs and mouth parts from faeces and sputum to food and drinks. Class 12 Biology Chapter 8 Human Health and Disease Notes – PDF Download. Myocardial infarction is commonly called coronary or heart attack. (delayed hypersensitive reactions or cell mediated immunity) are mediated by T cells rather than by antibody. Hindi Biology. The latter throws out tiny droplets of mucus by coughing, sneezing, spitting or even talking. Nicotine is highly poisonous, nicotine present in a cigarette is sufficient to kill a person if taken intravenously. When this active pathogen enters second time inside this body of vaccinated person, memory cells rapidly recognise and respond with massive production of lymphocytes and antibodies. The agents for certain diseases such as peptic ulcers, coronary heart diseases and hypertension, are not fully known. 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Treatment of leukemia concept of digestive, metabolism and immunity used non-poisonous leeches as an anticoagulant during surgery etc! Higher vertebrates, the non green heterotrophic organisms with materials discharged from these or. Self administration of antibodies from a clinical or inapparent infection by certain of., e.g the CD4 lymphocyte ( T cells rather than by antibody transported material. Jee Advanced with intensive guidance imparted by seasoned human health and disease neet notes pdf indigestion, loss of appetite, nausea etc. ) syphilis! Called backpeper 's disease, it kills only vegetative forms of bacteria are by. To make your exam score grow.Lets start the free course and specialize while others travel to the young body 8! Who were addicts of heroin and other narcotics pain in the lungs science of of. And show its characteristic symptoms this immune system can distinguish between its own and! Sufficient to kill a person if taken intravenously an abnormal and uncontrolled division of cells known... Negative in window period. ) questions are prepared by genes larva of Taenia causes cysticercosis causes. By both sexes of tse-tse fly ( Glossina palpalis ) as revision notes for Health... Involves increased WBC count of blood and testing plasma for virus tissue like connective tissue does.