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Biology

A natural science concerned with the study of life or living matter in all its forms and phenomena, especially in relation to their origin, growth, reproduction, structure, behaviour and evolution.

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Biology > Immunology

coagulation system

Biology; Immunology

The coagulation system is a proteolytic cascade of plasma enzymes that triggers blood clotting when blood vessels are damaged.

surface immunoglobulin

Biology; Immunology

The membrane-bound immunoglobulin that acts as the antigen receptor on B cells is often known as surface immunoglobulin (sIg).

toxoids

Biology; Immunology

Inactivated toxins called toxoids are no longer toxic but retain their immunogenicity so that they can be used for immunization.

leukocyte

Biology; Immunology

Leukocyte is a general term for a white blood cell. Leukocytes include lymphocytes, polymorphonuclear leukocytes, and monocytes.

allergic conjunctivitis

Biology; Immunology

The lining of the eye, called the conjunctiva, manifests allergic conjunctivitis in sensitized individuals exposed to allergens.

major basic protein,

Biology; Immunology

Eosinophils can be triggered to release their major basic protein, which can then act on mast cells to cause their degranulation.

central tolerance

Biology; Immunology

Central tolerance is tolerance that is established in lymphocytes developing in central lymphoid organs. Cf. peripheral tolerance.