What Is the Mechanism in Type I Hypersensitivity Reactions

question 26

Multiple Choice

What is the mechanism in type I hypersensitivity reactions?

• A) Antibodies bind to the antigen on the cell surface and cause lysis.
• B) Antibodies coat mast cells by binding to receptors that signal its degranulation followed by discharge of preformed mediators.
• C) Antibodies bind to soluble antigens that were released into body fluids and the immune complexes are deposited in the tissues.
• D) Cytotoxic T lymphocytes or lymphokines-producing Th1 cells attack and destroy cellular targets directly.

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Definitions:

Herniated Nucleus Pulposus

Herniated nucleus pulposus refers to a condition where the inner gel-like core of a spinal disc protrudes through its outer layer, potentially causing back pain and nerve irritation.

Lateral Tilting

Involves positioning a patient so that their body is tilted to one side or the other, often used in medical and therapeutic settings to facilitate certain procedures or promote comfort.

Paravertebral Muscles

Muscles located on either side of the vertebral column, playing a pivotal role in the movement and stabilization of the spine.

Meniscus Tear

A tear in one of the two crescent-shaped cartilage structures (menisci) in the knee, leading to pain, swelling, and mobility issues.