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42 Cards in this Set
- Front
- Back
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What area of the body is devoid of lymphatics?
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CNS
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Which areas of the body have dense lymphatic networks?
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Dermis, mucous membranes
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What are the 4 main parts of the lymphatic system?
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1. Lymph
2. Lymphatic vessels 3. Lymphoid tissues & organs 4. Cells of immune system |
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What is the primary function of the lymphatic system?
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Production, maintenance & distrubution of lymphocytes to detect problems, reach site of injury/infection
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What are other functions of the lymphatic system? (2)
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1. remove excess fluids from body tissues
3. Absorb FA & transport of fat, chyle to circulatory system |
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When does tissue fluid become lymph?
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Once it has entered lymphatic capillary
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How is lymph fluid formed?
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-Fluid leaks from blood capillaries into interstitial spaces to supply cells w/ nutrients
-Excess fluid not reabsorbed by venous capillaries enter lymph capillaries by increased interstitial pressure (hydrostatic pressure of tissue fluid) |
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What percent of interstitial fluid returns to venous capillaries?
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90% due to hydrostatic pressure of interestitial fluid & oncotic pressure inisde capillaries
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10% of interestitial fluid returns to circulatory system via lymphatics due to?
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Osmotic pressure exerted by proteins in blood plasma
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Do lymph vessels contain valves?
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yes
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Lymph vessels converge to form?
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Lymphatic trunks
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Lymphatic trunks converge to form?
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lymphatic ducts
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Intestinal lymph trunk receives lymph from?
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Stomach, intestines, pancreas, spleen, lower part of liver
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Bronchomediastinal trunk receives lymph from?
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Viscera of thorax
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Subclavian trunks receive lymph from?
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Upper liimbs
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Jugular trunks receive lymph from?
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Head & neck
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Right lymphatic duct receives lymph from? (3)
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1. Right upper limb
2. Right side of thorax 3. Right head & neck |
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Thoracic duct receives lymph from? (4)
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1. Any area below diaphragm
2. Left half of thorax 3. Left head & neck 4. left upper limb |
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The right lymphatic duct enters which vein?
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Right subclavian
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The thoracic duct enters which vein?
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Left subclavian
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What receives all lymphatic trunks below diaphragm & is the origin of the thoracic duct?
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Cisterna chyli
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What are the superficial lymph nodes of the head? (5)
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1. Occipital
2. Retroauricular 3. Preauricular 4. Superficial parotid 5. Facial |
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What are the deep lymph nodes of the head? (2)
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1. Deep parotid
2. Retropharyngeal |
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What are the superficial lymph nodes of the neck? (4)
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1. Submental
2. Submandibular 3. External jugular 4. Anterior jugular |
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What are the deep lymph nodes of the neck? (2)
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1. Superior
2. Inferior |
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All superficial lymph nodes of head drain to superior deep cervical nodes EXCEPT which 2?
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1. Facial --> submandibular -> superior deep
2. Occiptal --> inferior deep |
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Which tissue does occipital node receive?
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Scalp
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Which tissues does retroauricular node drain? (2)
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1. Scalp
2. External ear |
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What tissue does anterior auricular node drain? (2)
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1. Scalp
2. External ear |
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What tissues does the superficial parotid node drain? (4)
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1. Scalp
2. Parotid (superficial) 3. Lacrimal gland 4. External ear |
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What tissues does the facial node drain? (3)
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1. Infraorbital region
2. Nasal cavity 3. Cheek |
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What tissues drain to deep parotid node? (2)
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1. Parotid gland (majority)
2. Middle ear |
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What tissues drain to retropharyngeal node? (4)
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1. Pharynx
2. Palate 3. Paranasal sinus & nasal cavity 4. Infraortbital region |
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What tissues drain to submental nodes? (5)
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1. Both sides of chin
2. Tip of tongue 3. Lower lip 4. Floor of mouth 5. Mandibular incisors |
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What tissues drain to submandibular nodes? (5)
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1. Cheeks
2. Upper lip 3. Tongue 4. Anterior hard palate 5. All teeth except mand incisors & max 3rd molars |
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External jugular nodes are secondary to which nodes? (4)
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1. Occipital
2. Postauricular 3. Preauricular 4. Superficial parotid |
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Anterior jugular nodes drain which region?
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Infrahyoid region
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Which superficial cervical nodes drain to superior deep cervical nodes? (4)
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1. Submental nodes
2. Submandibular nodes 3. External jugular 4. Anterior jugular |
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Which superficial cervical nodes drain to inferior deep cervical nodes? (3)
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1. Anterior jugular nodes
2. External jugular nodes 3. Superior cervical deep nodes |
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Vestibular gingiva drains to which nodes?
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Submandibular nodes
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Mandibular lingual gingiva & mucosa of floor of mouth drain to which nodes?
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Submandibular nodes or directy to deep cervical nodes
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Palatal gingiva & mucosa drain to which nodes?
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Submandibular &/or retropharyngeal nodes
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