immune system of body

Send This

Download

Comment

Favourite

more

Rating :

Rate It:

Embed :

Khushbu on Jul 18, 2012 Says :

amaging ppt on immune system with great images and diagrams.

Post a comment

Post Comment on Twitter Post Comment on SlideWorld

Comments:

Subscribe to follow-up comments

Notes

Hide Notes

Slide 1 :

Immunity

Slide 2 :

Immunity - Introduction A state of having sufficient biological defenses to avoid infection, disease, or other unwanted biological invasion. Capability of the body to resist harmful microbes from entering the body.

Slide 3 :

Immune system

Slide 4 :

Slide 5 :

Slide 6 :

Slide 7 :

Slide 8 :

Defense mechanisms

Slide 9 :

Types of immunity Immunity Innate Adaptive Natural Artificial Passive (maternal) Active (infection) Passive (Ab transfer) Active (Immunization)

Slide 10 :

Innate immunity (first line of defense)

Slide 11 :

First line of defense

Slide 12 :

Adaptive Immunity Humoral response Cell- mediated response Extra cellular microbes B lymphocytes Elimination of microbes Phagocytosed microbes in macrophage Dendritic cells display antigen to T cells Intracellular microbes within infected cell T cells release cytokines Activation of macrophage to kill microbes Lysis of infected cell

Slide 13 :

When antigen enters… antigen

Slide 14 :

Natural adaptive immunity

Slide 15 :

Acquired Immunity Artificial adaptive immunity

Slide 16 :

Active Acquired immunity Pathogen enters body Memory Th cells activate Killer T cells. Igs coat the pathogen before symptoms appear opsonization Active killer T cells phagocytose antigen. Pathogen encounters memory B cells and memory helper T (Th)cells Memory Helper T cells Memory B cells Memory B cells forms plasma cells which release immunoglobins (Igs)

Slide 17 :

Immunity variations among different age groups

Slide 18 :

Herd immunity is observed as a result of elimination of antigen propagation amongst population due to vaccination of the majority.

Slide 19 :

Mucosal Immunity

Slide 20 :

The mucosal immune system protects the internal surfaces of the body The mucosal immune system ?GI tract ?Respiratory tract ?Urogenital tract ?exocrine glands associated with these organs In a healthy human adult, this local immune system contributes almost 80% of all immunocytes. These cells are accumulated in, or in transit between, various mucosa-associated lymphoid tissues (MALT), which together form the largest mammalian lymphoid organ system.

Slide 21 :

Slide 22 :

Types of MALT: Depending in the region it is present

Slide 23 :

Immunity conferred by vaccines

Slide 24 :

Some interesting facts… Positive events of the day seem to have a stronger helpful impact on immune function. Having a good time on Monday still had a positive effect on the immune system by Wednesday. The frequent hand washing can break down the natural oils on the skin that serve as the first line (or layer) of defense for the immune system. Studies show that people who lack humor in their lives tend to have less protective immune responses. While the body needs some sunlight to produce vitamin D, too much sunshine can suppress the immune system.

Slide 25 :

Thank you ? By : Disha ,Kanika, Teena

Ethnic Differences i...

Building a hospital ...

Factors affecting bo...

Foreign bodies in th...

HIV INFECTION AND TH...

Neuroendocrine regul...

Free Powerpoint Templates

	ritika.saxena@carzia.com 10 Months ago.



552 Views, 0 favourite
information on immune system of the body- Slides
More By User Flag as inappropriate Select your reason for flagging this presentation as inappropriate. If needed, use the feedback form to let us know more details. Cancel