The body has several defense mechanisms to prevent poisons from entering, including the skin, which acts as a barrier against pathogens and toxins. The mucous membranes in the respiratory and gastrointestinal tracts can trap and expel harmful substances. Additionally, the liver plays a crucial role in detoxifying harmful compounds that do enter the bloodstream. The immune system also helps identify and neutralize toxins that may enter the body.
Skin prevents microbes from entering your body...
The epiglottis is the part of the body that prevents food from entering the lungs. It is a flap of cartilage located at the base of the tongue that covers the trachea during swallowing, directing food and liquids into the esophagus instead. This mechanism helps to ensure that the airway remains clear and prevents aspiration, which could lead to respiratory complications.
A device that prevents a gas flame from entering the supply pipe.A device that prevents a gas flame from entering the supply pipe.
When an employer prevents workers from entering their workplace it is called a lockout.
lockout
one way is the nose ,the hair and the mucous in a person's noes prevents microbes from getting in by trapping them.
One medication is spironolactone. This medication is a potassium-sparing diuretic that prevents potassium from entering into the kidney.
They are not given to induce vomiting (although sometimes they do). They are given to adsorb chemical poisons that have been ingested and so prevent them from entering the body.
immune
Dust can enter the outer ear, which can be washed just like any other body part. The eardrum prevents dust from entering the middle ear.
Hair is a cosmetic part of the body that helps to determine how you look. It also provides warmth and in certain areas of the body like the ears and eyes, it prevents foreign materials from entering the body.
The epiglottis.