Integumentary/Immune System Flashcards
Dermis
Contains blood supply to the skin and most of the specialized cells
Epidermis
It contains mainly keratinocytes (corneocytes) or waterproof cells and sloughs off
5 Layers of the Epidermis
corneum, lucidum, granulosum, spinosum, basale
Innate Immunity
The body’s initial generalized defense against pathogens, inflammation, physiologic response
Granulocytes
Attracted to the site of injury, phagocytize antigens and antigenetic material
3 Types of Granulocytes
Neutrophils, Eosinophils, Basophils
Neutrophils
Most common, first responders to sites of inflammation, attracted to cytokines, adapted to attack bacteria, main component of pus
Eosinophils
Responsible for immune responses, allergic and asthmatic responses
Basophils
Mast cells, allergic response, release of histamine, blood vessel dilation
Monocytes
Large, long-lived immune cells that can differentiate into macrophages and dendritic cells
Macrophages
Phagocytize dead cells and pathogens
Dendritic Cells
Process antigens and present them to other immune cells, link between innate and adaptive immune response
Adaptive Immunity Cells
B Cells, T Cells (CD4+,CD8+), Antibodies
Innate Immunity Cells
Macrophages, Natural Killer Cells, Basophils, Eosinophils, Neutrophils
T lymphocytes
cell-mediated immunity, development in bone marrow, travel to the thymus for maturation, released into the lymph to perform immune functions