Nervous System Articles

• Veterinary Medicine
  Obesity
  Developmental Biology
  Microbiology
  Stem Cells
  Biology
   

  Biological tissue

  Biological tissue is a collection of interconnected cells that perform a similar function within an organism. The study of tissue is known as histology, or, in connection with disease, ... > more
• Eye Care
  Perception
  Healthy Aging
  Sports Medicine
  Cosmetic Surgery
  Attention Deficit Disorder
   
  

  Eye

  An eye is an organ of vision that detects light. Different kinds of light-sensitive organs are found in a variety of organisms. The simplest eyes do nothing but detect whether the surroundings are ... > more
• Gynecology
  Women's Health
  Hormone Disorders
  Pregnancy and Childbirth
  Menopause
  Healthy Aging
   
  

  Progesterone

  Progesterone is a C-21 steroid hormone involved in the female menstrual cycle, pregnancy (supports gestation) and embryogenesis of humans and other species. Progesterone belongs to a class of ... > more
• Folic Acid
  Healthy Aging
  Pregnancy and Childbirth
  Sports Medicine
  Bone and Spine
  Birth Defects
   

  Spina bifida

  Spina bifida describes birth defects caused by an incomplete closure of one or more vertebral arches of the spine, resulting in malformations of the spinal ... > more
• Lung Disease
  Healthy Aging
  Hypertension
  Asthma
  Marine Biology
  Lung Cancer
   
  

  Gas exchange

  Gas exchange or respiration takes place at a respiratory surface; a boundary between the external environment and the interior of the body. For unicellular organisms the respiratory surface is simply ... > more
• Gastrointestinal Problems
  Molecular Biology
  Cell Biology
  Genetics
  Stem Cells
  Heartburn
   
  

  Parietal cell

  Parietal cells (also called oxyntic cells) are the stomach epithelium cells which secrete gastric acid. Parietal cells produce gastric acid (hydrochloric acid) in response to histamine (via H2 ... > more
• Addiction
  Controlled Substances
  Illegal Drugs
  Pharmacology
  Alcoholism
  Cocaine
   

  Drug addiction

  Drug addiction, or substance dependence is the compulsive use of psychoactive drugs, to the point where the user has no effective choice but to continue use. Drug addiction has two components: ... > more
• Thyroid Disease
  Hormone Disorders
  Healthy Aging
  Attention Deficit Disorder
  Cancer
  Diseases and Conditions
   
  

  Thyroid

  The thyroid is one of the larger endocrine glands in the body. It is a double-lobed structure located in the neck and produces hormones, principally thyroxine (T4) and triiodothyronine (T3), that ... > more
• Hypertension
  Food Additives
  Nutrition
  Diet and Weight Loss
  Dietary Supplement
  Heart Disease
   

  Electrolyte

  An electrolyte is a substance that dissociates into free ions when dissolved, to produce an electrically conductive medium. Electrolyte and sports drinks can be home-made by using the correct ... > more
• Immune System
  Arthritis
  Crohn's Disease
  Skin Care
  Allergy
  Joint Pain
   

  Inflammation

  Inflammation is the first response of the immune system to infection or irritation and may be referred to as the innate cascade. Inflammation is characterised by the following quintet: redness ... > more

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