Transcript The Lymphatic System “The Garbage Disposal System”

The
Lymphatic
System
By Kristin James, Alex
Christiansen, & Saundra
Thomson
FUN FACTS!!!



The lymphatic system
returns about 3.17 quarts
(3 liters) of fluid each day
from the tissues to the
circulatory system.
Production of
lymphocytes (immune
system) takes place in
the bone marrow.
The B-cells are known to
fight off pathogenic
bacteria. However, a
special type of B-cells
known as memory B-cells
protect the body from
attack by similar
pathogens in the future.
Purposes of the Lymphatic
System
 The
lymphatic system aids the
immune system in removing
unwanted waste from the body
 The Lymphatic System is known as
the drainage system because it
removes excess fluids that cause
harm to the body
 It also absorbs fats and fat-soluble
vitamins from the digestive system
The Process:



Blood carries oxygen, nutrients and hormones for
our cells
Blood Plasma flows with the blood, then separates
to reach the cells through body tissue and deliver
its nutrients
90% of the plasma goes to the cells this fluid is now
known as interstitial fluid the other 10% is Lymph
Lymph:
 Lymph,
(a.k.a “blood plasma”) a milkywhite to yellow, watery liquid, is the main
component of the lymphatic system.
 The liquid originates from blood, it
contains oxygen, proteins, glucose and
white blood cells.
 It delivers nutrients to the cells, and
removes undigested protein from the
cells.
Lymphatic Capillaries:
 Lypmh
has to enter the
lymphatic system using these
specialized capillaries
 They begin as “blind-ended”
tubes that are about as thick
as a single cell
 Each cell is fastened to
nearby tissues by an
anchoring filament, where
they turn into lymphatic
vessels
Lymphatic Vessels
 Lymphatic
vessels
are larger versions
of lymphatic
capillaries
 They’re located
deeper in the body
near major blood
veins
 The vessels are also
known as
lymphangions
 There
Lymph Nodes
are between 600700 lymph nodes
present in the average
human body
 Their job is to filter lymph
 The nodes is the last stop
of cancer cells, where
they are trapped and
destroyed- until
overwhelmed
 Although these nodes
can increase or
decrease in size
throughout life, any
nodes that has been
damaged or destroyed,
does not regenerate.
LAB!!
 Turn
to a partner
and play hot
hands
 What do you
think is
happening
beneath the skin
when your hands
start reddening?
Lymphocytes
 Lymphocytes
is a type of
white blood cell, and
they form lymph tissue.
 Lymphoid tissue defends
the body against the
infections and spread of
tumors.
 B-lymphocytes (B-cells)
and T-lymphocytes (Tcells).
 The T-cells are known to
fight off the infection of
viruses.
 B-cells take care of
pathogenic bacteria.
Major Body Parts:
 Thymus:
Located towards the basal of the
heart, made up of lymphatic tissue, and
takes part in the development of the
immune system
 Tonsils: This organ of the lymphatic system is
located in the back of the throat.
 Adenoids: The adenoids can be described
as a mass of lymphoid tissue that is situated
by the tonsils.
Diseases and Infections
 Elephantiasis
 Mesenteric
lymphadenitis
 Castle-man Disease
 Tonsillitis
 Lymphodenpathy
 Lymphoma
Vocabulary to remember:
 Lymphatic
System: the system by which
lymph is returned from the cells to the
blood
 Lymphatics: A lymphatic Vessel
 Thoracic duct: the main trunk of the
lymphatic system, passing along the
spinal column
Vocabulary:
 Lymphocytes:
a type of white blood cell
with a sphereical structure
 Lymphadenopathy: swollen lymph nodes
 Lymphadema: Cancer of the lymph
nodes
 Elephantiasis: a chronic filarial disease
resulting in lymphatic obstruction,
characterized by marked enlargement of
the parts affected, especially of the legs
Bibliography








http://www.lymphnotes.com/article.php/id/151/
http://health.howstuffworks.com/humanbody/systems/lymphatic/question138.htm
http://www.medical-reference.net/2011/08/howdoes-lymphatic-system-work.html
http://www.nlm.nih.gov/medlineplus/lymphaticdisea
ses.html
http://www.betterhealth.vic.gov.au/bhcv2/bhcarticl
es.nsf/pages/Lymphatic_system
http://kidshealth.org/parent/general/body_basics/sp
leen_lymphatic.html#
http://www.funtrivia.com/en/SciTech/LymphaticSystem-18883.html
http://www.buzzle.com/articles/lymphatic-systemfacts.html