Body Defence Mechanisms

What is the body's first line of defence against infection?

• Physical barriers

• White blood cells

• Blood plasma

• Red blood cells

Your immune system is also found in the skin?

• True

• False

Which of the following is NOT part of innate immunity?

• Macrophage

• Complements

• Phagocytosis

• Antibodies

Below are examples of physical barriers, except for ___

• Cilia

• Intact Skin

• Eyelashes

• Saliva

Below are examples of defense mechanisms, except for __

• Body hair

• Mucus

• acid

• Macrophages

Choose the cells involve in innate immune system

• Phagocytes

• Macrophages

• B-Cell

• Mast cell

• RBC

Tissue that come into direct contact with the outside

• respiratory tract

• urogenital tract

• gastrointestinal tract

• all

Thick bark is an example of which immunological barrier

• Physical barrier

• Chemical barrier

• Microbiota barrier

Citronella is an example of which immunological barrier

• Physical barrier

• Chemical barrier

• Microbiota barrier

Saliva is an example of which immunological barrier

• Physical barrier

• Chemical barrier

• Microbiota barrier