Biology, asked by venugopalrao1802, 1 year ago

define the following
Allergens
Anaphylactic shock
Seasonal allergies
Perennial allergies​

Answers

Answered by Anonymous
1

Answer:

Allergen:-

An allergen is any substance (antigen), most often eaten or inhaled, that is recognized by the immune system and causes an allergic reaction. Dust, pollen and pet dander are all common allergens, but it is possible to be allergic to anything.✌️✔️✔️

anaphylactic shock:-

an extreme, often life-threatening allergic reaction to an antigen to which the body has become hypersensitive.✌️✌️✔️✔️✔️

Seasonal allergies:-

Seasonal allergies cause itchy skin, a runny nose, sneezing, and sometimes itchy or watery, bloodshot eyes. Doctors can usually diagnose these allergies when typical symptoms (such as a runny, itchy nose and itchy eyes) develop during a particular season.✌️✌️✌️✔️✔️✔️✔️

Perennial allergies:-

Perennial allergies are often a reaction to house dust. House dust may contain mold and fungal spores, fibers of fabric, animal dander, dust mite droppings, and bits of insects. ... Usually, perennial allergies cause nasal symptoms (allergic rhinitis) but not eye symptoms (allergic conjunctivitis).✌️✌️✌️✌️✔️✔️✔️✔️✔️

Answered by Anonymous
14

Answer:

condition in which the immune system reacts abnormally to a foreign substance.

an extreme, often life-threatening allergic reaction to an antigen to which the body has become hypersensitive.

An allergic response causing itchy, watery eyes, sneezing and other similar symptoms.

Allergic rhinitis occurs seasonally or year-round. Diagnosis involves history-taking, examination of the nasal passages and sometimes skin testing.

Perennial allergic rhinitis is a chronic allergic condition that doesn't subside throughout the year and causes nasal congestion

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