Give an example of the body’s response to exposure external and internal irritants

A) external irritants – irritation of the plantar of the foot in a person causes reflex flexion of the foot and fingers, lighting with bright light causes the pupil to narrow;
B) internal irritants – a change in the composition and physico-chemical properties of body fluids causes the production of certain secrets and (or) hormones.

Remember: The process of learning a person lasts a lifetime. The value of the same knowledge for different people may be different, it is determined by their individual characteristics and needs. Therefore, knowledge is always needed at any age and position.