Lympathic & Respiration System Flashcards
Anatomy of the lymphatic system
lymph, lymphatics (capillaries, pre-collectors, collectors, vessels, trunks, and ducts), lymph nodes, tissues and organs, bone marrow, thymus, and spleen
- lymphatic or lymphoid related tissues: these are present in GASTROINTESTINAL (GI) and RESPIRATORY TRACT MUCOSAE
Physiology of the lymphatic system
Protection f the body through defense mechanisms and transportation of fats
Lymph
the nearly COLORLESS WATERY FLUID circulating through LYMPHATICS
- only called LYMPH when it is in the LYMPH VESSELS
- in the INTERSTITIAL SPACES it is called INTERSTITIAL FLUID
- in the BLOOD VESSELS it is called BLOOD
Interstitial Fluid
located in the EXTRACELLULAR SPACES between TISSUES
- it comes from BLOOD PLASMA that is pushed out of BLOOD CAPILLARIES during FILTRATION
Once interstitial fluid is inside LYMPH VESSELS is then TRANSPORTED to LYMPH NODES
lymph flow
When is blood considered “interstitial fluid”?
(bonus: what is it called when inter fluid enters the lymphatic capillaries?)
as blood is pushed through capillaries and filtered, nutrients and oxygen get pushed out
bonus: lymph
Lymphatic flow: After lymph is filtered by ___ ___, it is returned to the ___, becoming ___ once again.
lymph nodes
blood
plasma
Plasma vs interstitial fluid vs lymph
basically the same fluid but called different names depending on where it is located
Five fluid compartments
1) blood plasma
2) interstitial fluid
3) fat tissue
4) intracellular fluid
5) transcellular fluid
blood plasma
- about 5% of body mass
- it is the STRAW COLORED/PALE YELLOEW liquid component of blood that normally HOLDS the BLOOD CELLS in whole blood in SUSPENSION
- ab 55% of total blood volume
Interstitial (tissue) fluid
- ab 16% of body mass
- solution that BATHES and SURROUNDS the cells of multicellular animals
- found in INTERSTITIAL SPACES, also known as the TISSUE SPACES
- main componetn of the EXTRACELLULAR FLUID, which also includes PLASMA and TRANSCELLULAR fluid
hydrostatic pressure
- generated by the SYSTOLIC force of the HEART
- pushes water OUT of the CAPILLARIES
- aka BLOOD CAPILLARY PRESSURE (BCP)
Osmosis
- movement of water through a membrane
- water passes from a HIGH CONCENTRATION (of water) OUTSIDE of the vessels to a LOW CONCENTRATION INSIDE of the vessels, in an attempt to reach an EQUILBRIUM
Osmotic pressure (hint: opposite of osmosis)
the attraction of WATER by PROTEINS
(more blood in capillaries than inter fluid, hence why fluid wants to move towards the caps)
Sometimes the removal of tissue fluid does not function correctly, and there is a BUILD UP. This can cause SWELLING, often around the FEET and ANKLES
edma
Red blood cells, platelets, and plasms proteins ___ pass though the walls of capillaries. The resulting mixture that does pass through is in essence, blood plasma ___ ___ ____ ____
CANNOT
w/o the plasma proteins
Term for superficial lymph nodes located in the groin
Inguinal
Duct that drains lymph from the right side of the head and neck, the right upper extremity, and the right half of the upper trunk
right lymphatic duct
Lymphatic tissue located in portions of the small intestine
Peyer patches
Lymphatic tissue located in the oral cavity and pharynx
tonsils