It is a layer of tightly bound cells that prevents certain substances carried in the bloodstream from entering the brain. Reference: •American Medical Association Definitions of Medical Terms – https://www.ama-assn.org
Health Answer Category: General
What is Blind spot?
It is a spot in the field of vision that is not sensitive to light; it is a product of the entrance of the optic nerve into the eyeball, where no light receptors are present on the retina. Reference: •American Medical Association Definitions of Medical Terms – https://www.ama-assn.org
What is Blepharitis?
It is the inflammation of the eyelids. Reference: •American Medical Association Definitions of Medical Terms – https://www.ama-assn.org
What is Bladder?
It is an organ located in the pelvis whose function is to collect and store urine until it is expelled. Reference: •American Medical Association Definitions of Medical Terms – https://www.ama-assn.org
What is Bisexuality?
It is the sexual interest in members of both sexes. Reference: •American Medical Association Definitions of Medical Terms – https://www.ama-assn.org
What is a Birthmark?
It is any area of discolored skin that is present when a baby is born. Reference: •American Medical Association Definitions of Medical Terms – https://www.ama-assn.org
What is Birth Control?
It is the regulation of the number of children born, referring either to the prevention of pregnancy (by birth control pill, sterilization, etc) or the prevention of birth (by abortion, etc). Reference: •American Medical Association Definitions of Medical Terms – https://www.ama-assn.org
What is Birth Defect?
It is an abnormality that is present when a baby is born. Reference: •American Medical Association Definitions of Medical Terms – https://www.ama-assn.org
What is Birth Canal?
It is the passage that includes the uterus and vagina through which the baby passes at birth. Reference: •American Medical Association Definitions of Medical Terms – https://www.ama-assn.org
What is Bipolar Disorder?
It is an illness in which the patient goes back and forth between opposite extremes; the most notable bipolar disorder is manic-depressive disorder, which is characterized by extreme highs and lows in mood. Reference: •American Medical Association Definitions of Medical Terms – https://www.ama-assn.org