lesson 3

Question 1

types of blood cells: white blood cells are grouped into three main groups based on their appearance.

Answer 1

group 1= lymphocytes
group 2= granulocytes
group 3= monocytes

Question 2

define phagocytosis:

Answer 2

phagocytosis: important and effective mechanism of destroying pathogens during innate (non specific) immune responses.

• the phagocyte takes the organism inside itself as a phagosome (type of vesicle)), which subsequently fuses with a lysosome and its digestive enzymes which then kill the pathogen.

Question 3

what are the three main phagocytic cells:

Answer 3

macrophages
neutrophils
dendritic cells

Question 4

give all the info u know about Macrophages.

Answer 4

are irregular shaped phagocytes, which develop from monocytes

-able to move and are able to enter and exit the blood stream and move through different tissue

-they exist in many tissues of the body, and are predominantly found in the body cavities an organs

some are wandering cells that go looking for pathogens - these are able to move through tissues and squeeze through the capillary walls

some are fixed in one place a