Specific and non-specific defense
system
Ms. Kausar Naseem
Lecturer, Microbiology,
JUW
Specific and Non-specific defense
system
• Defence mechanism refers to the ways in
which the body protects itself from invasion of
pathogenic organisms or other foreign
materials.
• The defence mechanism include:
Non-specific mechanisms.
Specific mechanisms.
Non-specific defence/resistance
mechanisms
• Nonspecific defenses act sooner than specific
defenses
• It is considered as the body’s first line of defense
against pathogens and foreign particles.
• It offers protection against all organisms or
foreign materials encountered without any
specificity.
• Non-specific immunity lacks immunological
memory because of which responses occur in
same extent each time a pathogen or foreign
body is encountered.
Reference:
• Non-Specific Immune Response
• June 27, 2022 by Sagar Aryal
• Edited By: Sagar Aryal