lymphatic system

What are 3 lymphatic organs?

The spleen,the thymus gland and the tonsils

What is the function of the Thymus gland?

Matures T lymphocytes and recognise antigens

What is the function spleen?

Produces lymphocytes (white blood cells) and passes into circulation,breaks down old red blood cells,stores blood for emergencies

How much blood does the spleen store for emergencies?

350ml

What is the location of the spleen?

Upper left side or the abdomen behind the stomach

What is the structure of the spleen?

Largest organ in the lymphatic system which is a reddish purple colour

What is the function of the tonsils?

Defence against microorganisms entering the mouth and nose

What is the location of the tonsils?

In the throat at each side above the trachea

What are lymphocytes?

A type of white blood cell

What is the function of lymphocytes?

Defen the body against invading microorganism and abnormal cells e.g. cancer cells

What is function of lymph?

Clear fluid circulating the body tissues

What are antibodies?

Proteins found on the surface of microorganisms

What does the lymphatic system do?

Maintain fluid balance,transports fats,protects the body from infection

What are the main parts of the lymphatic system?

Lymph fluid,lymph vessels,lymph nodes,

What is the structure of lymph nodes?

Small filter structures

What are the functions of the lymph nodes?

Removes,bacteria,viruses and cancer cells

Where can the lymph nodes be found?

Neck,armpits and groin

What is the function of lymph vessels?

Carry lymph

What is the structure of the lymph vessels?

Thin tubes throughout the body

What is the structure of lymph fluid?

Clear liquid,contain white blood cells and tissue fluid

What is the function of lymph fluid?

Returns blood through the subclavian vein

Where is the thymus located?

Behind sternum

What is the function of the tonsils?

Defence for inhaled microorganisms

What do tonsils contain?

B and T lymphocytes

What are the names of the lymphatic organs?

Spleen,thymus and tonsils

What is the role of B cells/lymphocytes?

Recognise antigens and produce antibodies,responsible for immunity by memory of infection

What is Hodgkin’s diseases (Hodkingsons Lymphoma)?

Cancer of the B lymphocytes

What are examples of disorders do the lymphatic and immune system?

Hodgkin’s Disease/ Lymphoma,lukaemia and Mutible sclerosis (MS)

What is leukaemia?

Cancer of the blood.Overproduction of abnormal white blood cells

What are common symptoms of leukaemia?

Tiredness,pale skin, breathlessness, frequent infections and bleeding

What are treatments for leukaemia?

Chemotherapy,radiotherapy and bone marrow transplant

What does Hodgkin’s Disease/ lymphoma cause?

Painless Swelling of lymph nodes

Who does Hodgkin’s disease/ lymphoma often affect?

Young adults and people with weakened immune systems

What are the types of leukaemia?

Acute (fast) and chronic (slow)

What is an antigen?

A Protein on a pathogen that triggers an immune response

what is an antibody?

A protein made by B cells that attaches to antigens

What is phagocytosis?

When a macrophage swallows and digests a pathogen

What is immunity?

The body remembers an infection and responds quickly