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Spine Anatomy

Lymphatics

QuestionAnswer
What are the functions of the lymphatic system? *hint 5 things 1) absorbs excess fluid2) returns substances to blood circulation3) regulates fluid vol & pressure in tissue4) helps transport lymphocytes & hormones5) carries food components (fatty acids)
The lymphatic system is a low or high pressure system? low
What % of the lymph system is superficial? 70%
What type of touch does the lymphatic system respond to? *hint light or hard light (skin stretch)
What color is lymph? primarily clear liquid (thick)
The lymph system can regain trapped toxins, proteins, and fats? true or false true
What are some characteristics of the venous system? name 5 1) high volume2) %60 is deep to fascialsystem 3) responds to deep touch4) primarily RBCs5) usually cannot regain trapped proteins
What % of TBW does water represent? 60%
Intracellular compartments make up what % of TBW? 40%
Extracellular compartments make up what % of TBW? 20%
What makes up %15 of the extracellular compartment? lymph and interstitial fluid
What makes up %5 of the extracellular compartment? plasma of the RBC circulation
The lymphatic system is present everywhere except where there is no blood vascularization, like? *hint 3 places 1) epithelial tissue, 2) cartilaginous tissue, 3) cornea and the lens of the eye
Areas that don't have a lymphatic system but are drained indirectly are? *hint 3 things 1) placenta 2) labyrinth of the inner ear 3) most structures of the CNS;except dura mater, pia mater, pituitary capsule
Lymp is made up of 6 main things.. name them! 1) water makes up 96%2) colloids3) proteins4) fat5) cells6) other substances
What are colloids? vitamins, minerals, ions
What are some components of fat? free fatty acids, lipoproteins
What pecentage of cells are in the lymph? *hint 3 things 1) 85% lymphocytes 2) 13 - 15% macrophages and other immune cells 3)2% other cells
What are the 6 structures of the lymphatic system? 1) pre-lymphatic pathways2) lymphatic capillaries3) precollectors4) collectors5) lymphatic ducts and trunks6) lymph nodes
These are not considered lymphatic vessels, facilitate drainage, and are unorganized with no endothelial lining pre-lymphatic pathways
This has anchoring filaments, single layer of flat cells, and form a tight 'spider net' covering most of the body's organs, and lymph becomes liquid here lymphatic capillaries
These are lines between territories,where the lymph divides into twoopposite directions, and where there is a specific network of vessels or minute "anastomoses" between lymph vessels watersheds
These are main transporting vessels of the lymphatic system and containlymphagions collectors
The thoracic duct, cisterna chyli, and (R) lymphatic duct are all apart of what? lyphatic vessels
Lymphatic mm units contract at rate of... 10cm/min
_____L/day is pumped through the thoracic duct. 1.5-3L/day
What nervous system controls the spiral mm producing peristaltic waves of contractions in the lymphatic system? Autonomic
What is an example of an active lymphatic pump? lymphangions
Name 7 things that could be considered passive lymphatic pumps! 1) respiration 2) skeletal muscle contraction 3) peristalsis of the smooth mm 4) contraction of adjacent arteries 5) active or passive mobility of limbs 6) external compression 7) indirect factors (anchoring filaments and valves)
Passive exchange of fluids in a continuous blood capillary without protein leakage and without active transfer... what is this describing? Starlings equilibrium
Where is hydrostatic pressure in relation to the cell? inside
Where is colloid osmotic/oncotic pressure in relation to the cell? outside
What are the two types of edema? 1) lymphodynamic 2) lymphostatic
This edema is temporary, has low protein content, and functionally insufficient.. which one is it? lymphodynamic
This edema is chronic, usually high protein content, hyaluronic acid content, insufficient/damaged lymphatic system and mechanically insufficient.. which one is it? lymphostatic
Name 3 causes of primary lymphedema! 1) underdevelopement at birth [10-15%] 2) not developed at adolescence [75 - 80%] 3) overstretched/incompetent by age 35 [10%]
When does secondary lymphedema occur? usually after prior damage to lymphatic system
What are some contraindications for MLD? *hint 6 things 1) acute infection 2) serious circulatory problems 3) major cardiac problems 4) hemorrage 5) acute anuresis 6) active cancer
What are some precautions? *hint 8 things 1) lymphedema 2) thyroid problems 3) burns 4) HIV 5) pregnancy 6) chronic infection/inflammation 7) chemotherapy 8) orthostatic hypotension
Created by: txst spr 2009