Lysozyme is present in all except:
Lysozyme is a heat-labile protein which acts as a muraminidase and hence has bactericidal activity. It is present in tears, saliva and all mucosal secretions, but is absent in CSF, sweat and urine
Lacrimal secretions
CSF
Saliva
Respiratory tract secretions
Immunology Pa 1 (Immune Response, Antigen-Antibody Reactions, Hypersensitivity, Structure of Immune System, Immunodeficiency Disorders)