Zoology – Diseases and Immunology – Important Facts

  • Keeping the body in good condition is called Homoeostasis.
  • Communicable diseases are caused by pathogens.
  • Metabolic disorders, nutritional deficiencies, hormonal and enzymatic abnormalities cause non communicable diseases.
  • Beta cells of islets of Langerhans secrete insulin.
  • Alpha cells of islets of Langerhans secrete glucagon.
  • Increased glucose level in the blood is called hyperglycermia.
  • Renal failure is destroyed tissues in the kidneys.
  • Polyurea, Polydipsia and Polyphagia are the symptoms of diabetes mellitus.
  • Diabetes mellitus is caused due to the deficiency of insulin.
  • Diabetes insipides is caused due to the deficiency of anti diuretic hormone.
  • Excretion of excessive water along with urine is called diuresis.
  • Impairment of heart functions due to inadequate blood supply to the heart is called CHD (Coronary Heart Disease).
  • RHD (Rheumatic Heart Disease) is a crippling disease.
  • Uraemia is the accumulation of nitrogenous wastes in the blood.
  • Abnormal growth of adipose tissue leads to obesity.
  • Blood pressure greater than 160/95 mm Hg is called hypertension.
  • Alcoholism is a killer disease.
  • Drug means unauthorised and improportionate chemicals that are injurious to health.
  • Immunology is the study of immunity.
  • The foreign substance is called antigen.
  • The response of immune system against antigen is called immune response.
  • Immunization is the administration of vaccine.
  • Edward Jenner was the first one developed the vaccine.
  • Louis Pasteur discovered pox viruses.
  • Live and killed vaccines are the two types of vaccines.




One response to this post.

  1. Posted by selvam on January 29, 2012 at 10:31 am



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