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26 Cards in this Set

  • Front
  • Back
Lymphatic System
___________ is a major player in Immune response.

*The production, maturation, storage, and release of defensive white blood cells
Lymphatic System
- Returns excess interstitial fluid with leaked plasma proteins back to the Blood stream
Interstitial fluid
- liquid found between the cells of the body
Lymph (Clear water)
- Once Interstitial fluid has entered Lymphatic Vessels it is called_____________.
What are the biggest Veins?
Superior Vena Cava + Inferior Vena Cava
Kidney
- An Organ that filters Clean Blood
Lymphatic Vessels
- A one-way system in which Lymph flows toward the Heart

Types:
- Microscopic, permeable, blind-ended capillaries
- Lymphatic collecting vessels
- Trunks & Ducts
Lymphatic Capillaries
Lymphatic Capillaries
-Permeable
-Contain Minivalves that function as one-way gates
Minivalves
- Allow interstitial fluid to enter Lymph Capillaries

- Do NOT allow Lymph to escape from the Capillaries
Lymphatic Capillaries
During inflammation, _______________ can absorb
-Cell debris
-Pathogens
-Cancer cells
Lymph Nodes
Cells in the _______________ Cleanse and "Examine" the debris
Lacteals
Specialized lymph capillaries that are in Intestinal Mucosa (lamina propria)

*Absorb digested fat & deliver chyle to the blood
Chyle
is a milky bodily fluid consisting of lymph and emulsified fats
Right Lymphatic Duct
Right Lymphatic Duct
A Duct that drains the right upper arm + the right side of the head & thorax
Thoracic Duct
A duct that drains the rest of the body
Lymph Transport
> Lymphatic System lacks an organ that acts as a pump
> Vessels are low-pressure
> Uses same methods as veins too push lymph:
- Respiratory pump
- Muscular pump
Lymphocytes
The main cells that are involved in the Immune Response

Two main cells:

-T Cells + B Cells
T Cells & B Cells
Cells that protect the body against Antigens
Antigens
Anything the body perceives as foreign such as:
- Bacteria & their Toxins
- Viruses
- Mismatched Red Blood Cells or Cancer Cells
T Cells
(T Lymphocytes)
- Cells that manage Immune Response

- Attack & destroy infected cells
B Cells
( B Lymphocytes)
*Cells that produce Plasma cells, which secrete antibodies (gamma globulins, immunoglobulins)

*Antibodies immobilize Antigens
Edema
Fluid Built up
* Lymphatic Vessels remove this fluid built up
Lymph Nodes
*Will swell up and can physically feel them.
Found in:
-Inguinal -axillary (armpit)
-Chest - Cervical
-Major Blood Vessels
Lymph Nodes
______________ are placed within Connective Tissue & clustered along lymphatic vessels
Functions:
* Filtration
* Immune system activation
FIltration
* Macrophages destroy microorganisms & debris
Immune System Activation
* Monitor for antigens and launch an attack against them