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Stack #35028
A&P11-Class Notes Pg. 28 Lymphatics
| Question | Answer |
|---|---|
| Lymphatics are: | lymph collecting vessels, lymphatic trunks & lymphatic ducts |
| lymphatics resemble: | veins in structure; have 3 tunics |
| Which has thinner walls: lymphatics or veins? | lymphatics |
| which as more valves: lymphatics or veins? | LYMPHATICS |
| lymphatics beaded appearence comes from? | presence of many small valves |
| nodes are where? | interspaced at various intervals, fed by the lymphatics |
| lymphatics in skin travel in the | loose sub-cutaneous tissue & follow veins |
| In the viscera the lymphatics follow> | arteries & form plexuses around them |
| lymph flows from lymph capillaries to: | lymph collecting vessels, trunks and ducts |
| types of lymphatics (other than capillaries) include: | L collecting vessels, L trunks, L ducts- (there are two), |
| Lymphatic eollecting vessels are mostly: | anastomoses more than veins |
| L collecting vessels in skin travel w/ | superficial veins |
| L collecting vessels in the trunk & viscera travel w/: | deep arteries |
| Lymphatic Trunks form from:: | union of the largest collecting vessels |
| Function of L trunks: | drain lg areas |
| Major L. Trunks are named based on: | their collection region-(5)lumbar, bronchomediastinal, subclavian, juglar and interstinal |
| Lymphatic Ducts are superficial and | deep |
| 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. |
| What are the 2 main L. ducts? | Right Lymphatic Duct & Thoracic Duct |
| R L Duct is fromed by: | merging of the R juglar, R subclavian & R branchomediastinal trunks near the R clavicle. |
| R lymphatic duct empties into: | R subclavian V & drains lymph |
| Where does the R L Duct drain lymph from: | R upper arm, head & side of thorax |
| Which duct is smaller | R Lymphatic duct |
| Thoracic Duct is formed inferior to: | the diaphragm at the level of vertebrae #L-2. |
| Base of thoracic duct is an expanded sac called: | cisterna chyli |
| The inferifor segment of the Thoracic duct lies: | anterior to the vertebral column & penetrates the diaphragm at the aortic hiatus. |
| From the aortic hiatus the Thoracic duct: ascends the left | ascends the L side of vertebral column to the left clavicle. |
| The Thoracic duct collects lymps from: | 3-L bronchomediastinal trunk, L subclavian trunk & L jugular trunk. |
| Thoracic Duct empties into: | L subclavian vein near the internal jugular vein |
Created by:
Jean and Study Pals