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The Lymphatic System

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Sara Elkoftangy

on 8 February 2013

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Transcript of The Lymphatic System

Taking A closer look The Lymphatic System The Purpose & What it is Protects against invasion

Drains/removes interstitial fluids

Transports dietary fats

Transports white blood cells into bones

Remove parts of microbes or dead body cells

Drainage System. Very important to the body What Does The System Do? The Immune System What is the Lymphatic System? Part of the immune system

Circulates Lymph around body

the interconnected system of spaces and vessels between body tissues and organs by which lymph circulates throughout the body How Does It Work? CIRCULATION movement happens in it's own vessels

one way journey to the base of neck

no heart; movement depends on motion of muscles & joint pumps

passes through the lymph nodes (removal of debris and pathogens)

The now clean lymph continues it's path upwards

At the base of neck, clean lymph flows into the subclavian veins on either side of the neck. Also Part Of... What Is Lymph? Components In the System originates as plasma (fluid of blood)

arterial blood slows as it moves through a capillary bed

some plasma leaves arterioles and flow into tissues

becomes tissue fluid

After plasma has delivered its nutrients and removed debris, it leaves the cells.

approx. 90% flows to small veins

then enters the venous circulation as plasma and continues the circulatory system.

Remaining 10% of liquid left is called lymph What does lymph look like? Clear to yellowish fluid

A watery fluid that contains waste products.

Protein-rich due to the undigested proteins that were removed from the cells. Tonsils: Clusters of lymphatic tissue just under the mucous membranes
Line the nose, mouth, and throat (pharynx).
Three groups of tonsils. Defend the body against bacteria and viruses entering the body through the mouth or nose. Thymus soft organ
two lobes
located anterior to the ascending aorta and posterior to the sternum. The primary function of the thymus is the processing and maturation of T lymphocytes.
After maturation, they enter the blood and go to other lymphatic organs, where they help provide defense. Spleen largest organ in lymphatic system
2 different types of tissues
located in the upper left abdominal cavity
similar structure lymph node but larger. controls amount of blood in body
stores blood platelets and white blood cells
destroys old and damaged cells
filters blood Lymph Nodes small bean shaped
widely distributed through body
not present in central nervous system
three superficial regions where lymph nodes tend to cluster act like filters
white blood cells that fight infection and prevent its spread to more areas of the body
drain out potentially harmful pathogens and microorganisms from lymph lymphatic Vessels Lymph vessels act as reservoirs for plasma and other substances
transport lymph fluid back from the tissues to the circulatory system.
Without functioning lymph vessels, lymph cannot be effectively drained Like veins, the lymphatic vessels have one-way valves to prevent any backward flow.
A thin tube that carries lymph and white blood cells through the lymphatic system Bone Marrow Bone marrow is a key component of the lymphatic system
produces the lymphocytes that support the body's immune system. Bone marrow is the flexible tissue found in the interior of bones.
In humans, red blood cells are produced in the heads of long bones, in a process known as hematopoesis. Above are the four organs in the lymphatic system We Chose To Research More About... The Lymph Nodes! Don't Forget the Thoracic Duct! Quick Info: oval-shaped organ of the immune system

distributed widely throughout the body including the armpit and stomach

linked by lymphatic vessels.

Tend to occur in clusters like grapes Function: The lymph fluid inside of the lymph nodes contains lymphocytes, a type of white blood cell continuously recirculated through the lymph nodes act as filters that sieve off the harmful substances, dead cells and bacteria if there is infection, nodes will make more lymphocytes to combat. Swelling will occur. Relation to the rest of the system The Lymphoid Tissue Important for the immune response
helps protect it from infection and foreign bodies.
Lymphoid tissue is present throughout the body
includes the lymph nodes, spleen, tonsils, adenoids, and more. Needs Lymphocytes to fight bacteria etc.
Lymphocytes are produced in the bone marrow
T-cells migrate and mature in thymus
then they enter circulation to the tumor
Basically, the whole system connects with each other.
Without one of these parts/organs. The system would fail. Know Your Cells! T-cells: mature in thymus before their release into circulation are known as thymus cells or T cells in short. B cells: rest in the bone marrow until
they become completely mature Natural Killer Cells: Very agressive. Kill harmful cells and cancer cells by releasing toxins. (Obviously found in the lymph nodes) How are they connected? Well, the lymphoid tissue
contains large numbers of lymphocytes. Remember, lymphocytes are what help the lymph nodes kill and fight harmful bacteria/diseases etc. (Lymphocytes are basically white blood cells) Without these tissues, our body can't protect itself from all the harmful infections etc.
These are very important not only for this organ but for the others too.
If anything happens to these tissues, we will be missing a large amount of lymphocytes.
Lymph nodes are very dependent on lymphocytes SINCE LYMPH NODES REALLY NEED WHITE BLOOD CELLS... Other Systems Associated? YESS! Rid body of waste products
lymph empties into circulatory system
Lymph is initially created from the circulatory system.
Spread Of Cancer In a way, the lymphatic system is related to all
systems Because the lymphatic system protects the entire body from anything harmful. The white blood cells are made in the
bone marrow (from skeletal system) Muscles help pump blood
heart is a muscle Lymphoma

Lymphedema

Elephantiasis

Lymphanigioleiomyomatosis

Tonsillitis Rare Disease Infiltrates the lungs which eventually obstructs the flow of air Lymphedema is the chronic pooling of lymph fluid in the tissue Disorder of the lymphatic system caused by parasitic worms. Inflammation of the lymphatic vessels causes extreme enlargement of the affected area Tonsillitis is caused by viruses or bacteria that cause the tonsils to swell and become inflamed. THINGS THAT GO WRONG IN THE SYSTEM PROBLEMS IN THE LYMPH NODES MESENTERIC LYMPHADENITIS

CASTLEMAN DISEASE Inflamation of the lymph nodes Affects Nodes in your stomach and chest Treatments REMOVALS- Tonsils and some lymph nodes can be
surgically removed. CANCER TREATMENT- Lymphoma can be treated like all other types of cancer. BASIC TREATMENT- (surgery, chemotherapy, radiation therapy, immunotherapy and biologic therapy) Includes resting and consuming certain drinks and foods (hot, cold). Special medicine YOU CAN PREVENT IT THOUGH! good exercising
good skin health
good diet
proper breathing good sleep
No de-hydration
No infections
Good posture Lymphocytes (B or T) begin growing/multiplying uncontrollably. Type of Cancer Almost the same as lymphoma (cancer) Caused by infected mosquito bite and
certain chemicals causes airway to be blocked the effect is very noticeable THIS IS A SCHOOL PROJECT
VISIT BIBLIOGRAPHY PAGE.
http://www.lymphnotes.com/article.php/id/151/
http://shs.westport.k12.ct.us/mjvl/anatomy/MandalaWeb/The%20Lymphatic%20System.htm
http://www.rightdiagnosis.com/organ/lymphatic_system.htm
http://en.wikipedia.org/wiki/Lymphatic_system#Functions
http://medical-dictionary.thefreedictionary.com/tonsillitis
http://www.livestrong.com/article/78779-list-lymphatic-diseases/
http://www.medterms.com/script/main/art.asp?articlekey=4224
http://emedicine.medscape.com/article/1899053-overview
http://en.wikipedia.org/wiki/Lymph_node#Lymphatic_circulation
http://shs.westport.k12.ct.us/mjvl/anatomy/MandalaWeb/The%20Lymphatic%20System.htm
http://training.seer.cancer.gov/anatomy/lymphatic/components/
http://creationwiki.org/Lymphatic_system
http://en.wikipedia.org/wiki/Bone_marrow
http://training.seer.cancer.gov/anatomy/lymphatic/components/
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