The chemical compound that the body uses to identify something as foreign and a potential invader is referred to as a(n) ____________________. A) Toxoid B) Antibody C) Antigen D) Immunoglobulin
The chemical compound that the body uses to identify something as foreign and a potential invader is referred to as a(n) ____________________. A) Toxoid B) Antibody C) Antigen D) Immunoglobulin
Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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Question
32) The chemical compound that the body uses to identify something as foreign and a potential invader is referred to as a(n) ____________________.
A) Toxoid
B) Antibody
C) Antigen
D) Immunoglobulin
Expert Solution
Introduction
A group of organs that utilize an immune response to defend the body against external substances or infectious microorganisms is known as the immune system. Antigens are foreign cells or materials that enter the body and induce the immune system to create antibodies to fight them.
The immune system is classified into two systems that include:
- Innate immune system (non-specific defense mechanism)
- Adaptive immune system (specific defense mechanism)
Adaptive immunity is further classified into two types:
- Humoral immune response (B lymphocytes - antibody-mediated)
- Cell-mediated immune response (T lymphocytes - cytotoxic T cell-mediated)
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