Toxins Flashcards
0
Q
Describe the defence mechanisms present in the GI tract to deal with such toxins
A
Innate:
Physical - sight, smell, memory, saliva, gastric acid, s,all intestinal secretions (bile, enzymes), colonic mucus, anaerobic environment, peristalsis/segmentation (rapid movement)
Cellular - neutrophils, macrophages, NK cells, mast cells, eosinophils
Adaptive:
Cellular - B lymphocytes, T lymphocytes
1
Q
Describe the range of toxins that the GI tract and liver may be exposed to
A
Chemical Bacteria Viruses Protozoa Roundworms (nematodes) Tapeworms (cestodes) Flukes (trematodes)
2
Q
List some microorganisms that are resistant to gastric acid
A
Mycobacterium tuberculosis
Hepatitis A
Polio
Coxsackie
