The action of phagocytes
Macrophages can also be called
antigen presenting cells
Neutrophils are found in
blood
Phagocytes are produced by
bone marrow and stem cells
Macrophages are made in
bone marrow and stem cells, they are called monocytes until they reach organs
A large proportion of pus is made from
dead neutrophils
The phagocyte digests the microbe in 6 stages, they are
detection, ingestion, phagosome (phagocytic vesicle) forms, fusion with lysosome containing digestive enzymes, digestion and discharge
After digesting bacteria neutrophils
die
A pathogen is defined as a
disease causing organism
Some microbes can live in phagocytes for years by being
dormant
Some microbes can evade the immune system by
entering phagocytes and prevent fusion of a vesicle and so attachment to a lysosome, it then can rapidly reproduce inside the phagocyte (e.g. chlamydia or tuberculosis)
Phagocytes are described as
human cells that ingest microbes by phagocytosis
Macrophages role in the body is to
initiate an immune response by presenting the antigens of the bacteria they have digested to the lymphocytes
In size macrophages compared to neutrophils are
larger
Macrophages live span is
long
Microflora is the name given to
microorganisms associated with the body but don't cause disease, they reduce the growth of harmful bacteria
60% of white blood cells are made up of
neutrophils
The 3 phagocytes are
neutrophils, monocytes and macropages
Macrophages are found in
organs
There are 2 types of white blood cell
phagocyte and lymphocytes
Some microbes can kill phagocytes by
producing toxins
The 2 types of lymphocytes are
B and T
All phagocytes are a type of
white blood cell
During infection what is released is large amount of
white blood cells