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Summary Human health & disease class 12th cbse & NEET notes $8.49   Add to cart
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Summary

Summary Human health & disease class 12th cbse & NEET notes
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  • Human health & disease class 12th
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These notes are summary of the chapter Human health & disease of the Biology NCERT 12th class. This also includes syllabus for NEET. These notes are in respect to syllabus.

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Document information

  • July 22, 2024
  • 14
  • 2023/2024
  • Summary

Subjects

  • ncert
  • neet
  • human health disease
  • cbse biology
  • biology
  • health
  • diseases

Written for

  • Secondary school
  • Human health & disease class 12th
  • 1
All documents for this subject (1)

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giagazdar

Content preview

, * HEALTH & DISEASE

IMMUNITY
Ability to fight with
pathogens



INNATE ADAPTIVE
=>
Present since birth =>
Developed during lifetime


=> Produces => Produces
non-specific specific
response response

cells =>
=> No cells
memory Memory are


generated generated
E
Eg monocytes macrophage ,
=>
Eg B-lymphocytes ,


Natural killer cells,
T-lymphocytes
Neutrophils


BARRIER TYPES PRODUCED BY INNATE IMMUNITY
D Physical Barrier

& prevent entry of
They of defence
=>

are
part of 1st line
pathogen inside
post-body
=> The Skin has & sweat
epithilial tissue , sebaceous
gland gland
=> Epithilial tissue is
compact & no inter cellular
space
=> Sweat
gland releases sweat & sebaceous which prevent in
glands produces sebum


growth of microbes

=>
Respiratory , Reproductive & digestive tract are lined with Cillia which prevents
entery of microbes

2) Physiological Barrier
=
Lysozymes Fears & saliva
in ,
MC) in stomach act as
physiological barriers to kill the

microbes




3) CELLULAR BARRIER
=>
PMNL-polymorphonuclear leukocyte-neutrofils ,
N.K cells & monocytes in blood
& tissue fluid
macrophage in are
phagocytic in nature ,
&
engulf the microbes &
kill them

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