Question

Which of the following IS NOT one of the non-specific defenses of the internal organs?

a.) epithelial cells

b.) T-Cells

c.) pH

d.) cilia

Answer 1

b) T- Cells

• There are two type of defense mechanism ,they are specific and non specific defense.
• Non Specific defense include first line and second line of defense
• T cells are developed from thymus gland , which play an important role in immunity .They have T cell receptor
• Third line of defense is included in specific defense , in which T cells and B cells are present .
• First line defense include epithelial cells , pH and cilia.Hence option A , C and D are wrong .
• Low pH in the female external genitalia  prevent the entry of many microorganism.
• Hair cells present inside the nose prevent the entry of pathogen present outside the body.