85 results
Type IV Hypersensitivity: Pathogenesis and clinical findings
Definition: Unique because it is entirely T-Cell mediated; exposure to
Allergic reaction ... Particular CD4+ Th cells ... harmful -> Th Cells ... macrophages, mast cells ... #Immunology #pathophysiology
Type I Hypersensitivity: Pathogenesis and clinical findings
Definition: Production of lgE Antibodies that bind to harmless allergens
leading to an allergic ... plasma cells that ... complexes bind to mast cells ... • Inflammatory cells ... #Immunology #pathophysiology
Bell's Palsy
Bell’s Palsy is a damage, acute weakness, or paralysis of the Facial nerve (7th CN),
Bell's Palsy Bell ... Bell’s palsy happens ... By @rev.med #Bells ... #Palsy #neurology ... #anatomy #pathophysiology
Bell's palsy
There are many different causes of Facial Nerve Palsy. However, the commonest
cause of unilateral facial
Bell's palsy There ... variety known as Bell's ... - Ptosis #Bells ... #Palsy #Neurology ... Signs #Symptoms #Diagnosis
Innate Immune Cells - Pathophysiology
The innate immune system consists of granulocytes, mast cells, natural killer cells,
Innate Immune Cells ... - Pathophysiology ... natural killer cells ... #Pathophysiology ... #immunology
Hypersensitivity Types and Their Mechanisms
Type I - lgE - Soluble antigen
 - Allergen-specific lgE antibodies bind
with cytotoxic T cells ... natural killer cells ... antigen - TH1 cells ... Classification #Pathophysiology ... #Allergy #Diagnosis
Hypersensitivity: Summary
Type I Hypersensitivity:
 • Immunological Mediator: lgE
 • Immunological Target: Allergen Molecules
 • Ex: Antibiotic
Immunological Target: Allergen ... fever, Urticaria, Allergic ... Immunological Mediator: Th Cells ... #Allergic #Reactions ... Classification #Diagnosis
Allergic Rhinitis: Pathogenesis and clinical findings

1. Allergy Sensitization -> Antigen Exposure -> APC (macrophages, HLA class
-> Helper T cells ... producing Plasma Cells ... Abs coat mast cells ... to lgE on mast cells ... Rhinitis #Rhinorrhea #pathophysiology
Asthma: immunopathogenesis. 
Allergens attach to, and are taken up by, dendritic cells that he the respiratory
by, dendritic cells ... interaction of the allergen ... T-helper (TH2) cells ... mucus production allergic ... immunopathogenesis #Pathophysiology
Type II Hypersensitivity: Pathogenesis and clinical findings
Definition: When antigens bind to the body's cell surfaces, forming
surfaces of body cells ... body cell -> B-Cells ... foreign -> B-cells ... HypersensitivityReaction #Allergy ... #Immunology #pathophysiology