Slides in this set

Slide 1

Preview of page 1

All about...
The Lymphatic System
..OR JUST ABOUT!…read more

Slide 2

Preview of page 2

Firstly, what is the Lymphatic System?
The Lymphatic System is an important part of our immune
system; it plays a vital role in fighting pathogens and
destroying cancer cells.
The system is built up of lymph nodes and lymph/lymphatic
The Lymphatic System follows a similar mechanism to the
circulatory system of blood.
Lymph vessels branch all parts of the body like arteries and
Lymph vessels contain a colourless fluid called lymph.…read more

Slide 3

Preview of page 3

Lymph, eh?
The lymphatic system tubes however are much thinner and contain a
colourless liquid called Lymph.
Lymph contains a high number of white blood cells called Lymphocytes (in B
and T form). These lymphocytes fight infection by destroying infected cells.
As blood circulates the body, fluid leaks into the body tissues.
This fluid collects waste products, bacteria and damaged cells. It also
collects cancer calls if these are present. This fluid, or lymph, is then
transported to the lymph vessels.
The lymph the flows into the lymph vessels and into the lymph nodes, which
filter out any pathogens or damaged cells present in the lymph with either B
or T lymphocytes (white blood cells).…read more

Slide 4

Preview of page 4

So, we've covered Lymph.
What's this node business all about?
Essentially, the Lymphatic System consists of thin
tubes and lymph nodes that run throughout the body.
A lymph node is an organ of the Lymphatic System
which are sites of T and B Lymphocytes (White Blood
Cells) and other Immune-related cells. It's a fancy
word for gland. Lymph nodes generally act as filters
for particles and cancer cells. You'll find your Lymph
nodes at various points in the body, including the
tonsils, thymus, spleen and liver.…read more

Slide 5

Preview of page 5

To further your horizons...
Doctors check lymph nodes first when they are trying to
determine how far a cancer has spread.
This is because if cancer cells break away from a tumour, they
may become stuck in a near-by lymph node.
And upon being injected with a blue dye or tracer, the cancer
cells may break away from the tumour and travel to the
nearest lymph node. Their size can then be
evaluated/measured to determine progression of the tumour.…read more


No comments have yet been made

Similar Human Biology resources:

See all Human Biology resources »