PN 1003 ALTERATIONS TO THE BODY SESSION 2 EXAM QUESTIONS AND ANSWERS WITH COMPLETE SOLUTIONS GRADED A++

PN 1003 ALTERATIONS TO THE BODY SESSION 2 EXAM

QUESTIONS AND ANSWERS WITH COMPLETE

SOLUTIONS GRADED A++


Body's Defences

Barrier Defenses

Cellular Defenses

Cellular Defenses

Inflammatory Response

Immune Response

barrier defenses

Skin :Protects the internal tissues and organs of the body



Mucous Membranes: Line the areas of the body that are exposed to external influences,

but do not have skin protection



Gastric Acid:Secreted by the stomach in response to many stimuli



Major Histocompatibility Complex:

Distinguishes between self-cells and foreign cells

Types of cellular Defenses

, Mononuclear Phagocyte System (MPS)

Composed of:

Thymus gland

Lymphatic tissue

Leukocytes

Lymphocytes

Numerous chemical mediators

lymphoid tissues

Lymph Nodes

Spleen

Thymus gland

Bone Marrow

Lymphoid tissue throughout the respiratory and GI tracks

Histamine Release

A locally mediated response

Causes vasodilation

Brings neutrophils to injured area

Chemotaxis

Activated by arachidonic acid

attract neutrophils

aggressive

Local cellular breakdown and further inflammation

Clinical Presentation of inflammation