ALU 301 Chapter 1|Complete Questions with 100% Verified Answers
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Course
ALU 301
Institution
ALU 301
ALU 301 Chapter 1|Complete Questions with 100% Verified Answers
Immune System
A complex system of cells and soluble molecules that interacts with both infective organisms and molecules from outside of the individual.
Where do the cells of the immune system originate?
Bone marrow
Plurip...
ALU 301 Chapter 1|Complete Questions with 100% Verified Answers
Immune System
A complex system of cells and soluble molecules that interacts with both infective organisms and
molecules from outside of the individual.
Where do the cells of the immune system originate?
Bone marrow
Pluripotential stem cell
All cells of immune system originate from this common stem cell.
B-lymphocytes
Found in the bone marrow; fight off bacteria; produce antibodies
T-lymphocytes
Found in the thymus gland; defend us from viruses; eliminate infected cells; natural defense against
cancer.
lymphocyte
Type of immune cell
Innate Immune System
Present at birth and responds immediately to foreign material.
Adaptive Immune System
Requires exposure to an infectious agent in order to trigger a protective response; produces memory
cells.
External physical barrier
Skin
Internal physical barrier
Mucosal lining of the GI tract, genitourinary tract and upper respiratory tract.
Types of white blood cells
Monocytes, neutrophils, natural killer cells
Monocytes
Circulate in the blood and are one part of the differential in a CBC; mature into macrophages; 10% of
the total WBC.
Macrophages
Mature monocytes; main tissue-resident cell of the immune system; guard the borders of potential
entry; found in many different organs.
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