Recent Lessons

Show all results for ""

Feature Overview

Ace your exams with our all-in-one platform for creating and sharing quizzes and tests.

Quizzes

Create quizzes and tests automatically from your content using AI.

Flashcards

Automatically turn your notes into digital flashcards.

Share, Export & Embed

Share with classmates or export to Excel and your learning management system.

Stats & Reporting

Auto-grading quizzes and tests with detailed stats and reports.

Mobile Apps

The smarter way to study – wherever you are.

Pricing

Search...

Type I Hypersensitivity Reaction Pathogenesis

8 Questions

2 Views

Type I Hypersensitivity Reaction Pathogenesis

Choose a study mode

Play Quiz

Study Flashcards

Spaced Repetition

Chat to lesson

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

What happens when allergens are inhaled for the first time?

IgE antibodies are formed and fixed to mast cells in bronchial mucosa (correct)

IgG antibodies are formed and fixed to mast cells in bronchial mucosa

IgA antibodies are formed and fixed to mast cells in bronchial mucosa

IgM antibodies are formed and fixed to mast cells in bronchial mucosa

What happens if these allergens are inhaled again?

They will be neutralized by the mast cells

They will lead to formation of IgG antibodies

They will not bind to the fixed antibodies

They will bind to the fixed antibodies leading to release of mediators from the mast cells (correct)

Which type of hypersensitivity reaction is initiated by the process described?

Type IV hypersensitivity reaction

Type I hypersensitivity reaction (correct)

Type III hypersensitivity reaction

Type II hypersensitivity reaction

Which cells cause inflammation and progression of asthma?

Eosinophils Signup and view all the answers

Which mediators may be responsible for asthma?

Histamines Signup and view all the answers

What is the provocation dose of methacholine necessary to produce a 20% fall in FEV1 known as?

PC20 Signup and view all the answers

Which non-antigenic factor is a precipitating factor for asthma?

Exercise Signup and view all the answers

"In extrinsic asthma, the condition is paroxysmal & the patient is free in-between". What characterizes intrinsic asthma?

"The condition is persistent with exacerbations" Signup and view all the answers

Type I Hypersensitivity Reaction Pathogenesis

Choose a study mode

Podcast

Questions and Answers

What happens when allergens are inhaled for the first time?

What happens if these allergens are inhaled again?

Which type of hypersensitivity reaction is initiated by the process described?

Which cells cause inflammation and progression of asthma?

Which mediators may be responsible for asthma?

What is the provocation dose of methacholine necessary to produce a 20% fall in FEV1 known as?

Which non-antigenic factor is a precipitating factor for asthma?

"In extrinsic asthma, the condition is paroxysmal & the patient is free in-between". What characterizes intrinsic asthma?

More Like This

IgE Mediated Allergies

Rinitis Alérgica y Tratamientos

Patho Wk 4 - Hypersensitivities

Asthme et Allergies - Concepts Clés

Upgrade to continue