less than 1 minute read


Cyanosis, bluish discoloration of skin and mucous membranes. Central cyanosis results from a lack of oxygen in the blood flowing in the arteries from the lungs. Peripheral cyanosis occurs when there is insufficient oxygen in the haemoglobin of the venous blood, as a result of extensive oxygen extraction at the level of the capillaries.

Additional topics

21st Century Webster's Family Encyclopedia21st Century Webster's Family Encyclopedia - Cretinism to Davis, David