Alveolus

Alveolus: Air bladders or sacs in lung.

Alveolar Ventilation

Alveolar Ventilation: Movement of fresh air from the air sacs in the lungs.

Alopecia

Alopecia: Loss of hair from human head.

Allogeneic

Allogeneic: In transplantation, it refers to different genetic constitutions within the same species so that the tissues become incompatible upon transplantation.

Agranulocytosis

Agranulocytosis: It is a blood disorder in which there is an abnormal reduction in white blood cells and change in throat or skin due to some illness.

Ceramide

Ceramides belong to a class of lipid molecules and are the principal component of intercellular lipids.
It is also found in the skin.

Structure:

Uses:
It is an important component in the cohesion of the cells of the skin i.e. holds the cells of the skin in a smooth and firm structure. Ceramide is used as an emollient in the products of hair care.

Liposome

Introduction:
Liposome is the type of extremely small artificial sacks made up of lipid monolayers or the layers can be more than one.

The outer layers are very reactive chemically and helps in the coupling of antigens, nucleic acid probes, cell recpetors and antibodies.

Size:
Liposomes may range from 50 nm to 800 nm.