5.3 Lymph and Blood Cells

What body systems function to protect the human body?

Integumentary, skeletal, lymphatic, and immune

How does the structure of the lymphatic system relative to its location?

The lymphatic system's travels in a relatively similar was as the circulatory system. It's circulatory structure allows for the liquid that transports throughout the body to easily drain fluid from our cells, and also makes it easier for lymph vessels to

What is an antigen?

An antigen is anything foreign in the body that causes the immune system to 'fire up'. They're identifiers on cells, and they're usually in the membrane of the cell. These identifiers basically attach to an antibody to disable them from being able to do a

What is an antibody?

An antibody is the defender in blood that attacks antigens.

How do circulating antibodies protect from receiving incompatible blood during a transfusion?

If incompatible blood is received during a transfusion, the person's antibodies will reject the blood type and cause agglutination, or clumping of blood cells.

What is specific immunity?

Specific immunity is the part of your lines of defense that attacks a specific invader that makes it past your first two lines of defense.

What role do lymphocytes play in specific immunity?

Lymphocytes play a huge role in specific immunity. Lymphocytes are the most powerful defenders of the immune system.

How does your body react the second time it is exposed to a particular antigen?

After the body has been exposed to a particular antigen for the first time, B cells become memory B cells and remember the antigen. When the body is exposed to that antigen for a second time, it remembers the antigen, and so it will react in a less extrem

Agglutination

clumping of blood cells due to the incorrect interaction between antibody and antigen.

Alleles

alternate forms of a single gene that control the same inherited gene

antibody

produced by B cells-functions as the effector in the immune response

antigen

foreign invader that doesn't belong to the host organism it affects

B cell

type of lymphocytes that produces antibodies

Blood Types

(A,B,AB,O)

lymph

clear fluid that passes through blood stream

macrophage

2nd line of defense-"gobbles up" the foreign invader when it makes it past the first line of defense. It's a type of cell.

T Cell

type of lymphocyte responsible for cell meditated immunity that tells the B cell to start working