A&P11-Class Notes Pg. 28 Lymphatics
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| Lymphatics are: | lymph collecting vessels, lymphatic trunks & lymphatic ducts
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| lymphatics resemble: | veins in structure; have 3 tunics
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| Which has thinner walls: lymphatics or veins? | lymphatics
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| which as more valves: lymphatics or veins? | LYMPHATICS
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| lymphatics beaded appearence comes from? | presence of many small valves
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| nodes are where? | interspaced at various intervals, fed by the lymphatics
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| lymphatics in skin travel in the | loose sub-cutaneous tissue & follow veins
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| In the viscera the lymphatics follow> | arteries & form plexuses around them
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| lymph flows from lymph capillaries to: | lymph collecting vessels, trunks and ducts
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| types of lymphatics (other than capillaries) include: | L collecting vessels, L trunks, L ducts- (there are two),
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| Lymphatic eollecting vessels are mostly: | anastomoses more than veins
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| L collecting vessels in skin travel w/ | superficial veins
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| L collecting vessels in the trunk & viscera travel w/: | deep arteries
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| Lymphatic Trunks form from:: | union of the largest collecting vessels
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| Function of L trunks: | drain lg areas
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| Major L. Trunks are named based on: | their collection region-(5)lumbar, bronchomediastinal, subclavian, juglar and interstinal
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| Lymphatic Ducts are superficial and | deep
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| Lymphatic Ducts path: | L.vessels collect from all over body, then converge to form L. trunks, which empty into one of the 2 L ducts.
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| What are the 2 main L. ducts? | Right Lymphatic Duct & Thoracic Duct
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| R L Duct is fromed by: | merging of the R juglar, R subclavian & R branchomediastinal trunks near the R clavicle.
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| R lymphatic duct empties into: | R subclavian V & drains lymph
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| Where does the R L Duct drain lymph from: | R upper arm, head & side of thorax
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| Which duct is smaller | R Lymphatic duct
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| Thoracic Duct is formed inferior to: | the diaphragm at the level of vertebrae #L-2.
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| Base of thoracic duct is an expanded sac called: | cisterna chyli
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| The inferifor segment of the Thoracic duct lies: | anterior to the vertebral column & penetrates the diaphragm at the aortic hiatus.
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| From the aortic hiatus the Thoracic duct: ascends the left | ascends the L side of vertebral column to the left clavicle.
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| The Thoracic duct collects lymps from: | 3-L bronchomediastinal trunk, L subclavian trunk & L jugular trunk.
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| Thoracic Duct empties into: | L subclavian vein near the internal jugular vein
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