Head and Neck Lymphatics Flashcards
fluid is exchanged between _______ and ________
blood and tissues
fluid containing nutrients leaves blood in capillaries and enters the _________ _______ surrounding cells in a tissue
interstitial fluid
fluid containing waste leaves the interstitial fluid and enters _________
capillaries
waste in capillaries collect into ________ and then _______, which return to the heart
venules
veins
excess interstitial fluid enters the _______ ________, becoming lymph
lymphatic system
the lymphatic system delivers lymph to ________
blood
lymph flows into larger ________ _________ towards the trunk of the body
lymphatic vessels
as lymph travels through the lymphatic system, it gets filtered through ________ ________ along the way
lymph nodes
lymph vessels eventually collect into ducts that empty lymph into the _________ _________
blood circulation
lymph is returned to __________ blood
venous
what two ducts empty lymph into the blood where the subclavian veins merge with internal jugular veins
right lymphatic duct and thoracic duct
what type of organ are lymph nodes
secondary lymphoid organs
lymph nodes are bean shaped structures containing collections of ___________ and _________
lymphocytes and macrophages
lymph nodes are grouped in clusters along collecting __________ _________
lymphatic vessels
lymph nodes filter toxic products from the lymph to prevent their entry into the _______ _________
vascular system
lymph flows into the lymph nodes via ________ __________
afferent vessels
lymph flows out of the nodes through a _________ _______ ________
single efferent vessel
enlargement of a lymph node
lymphadenopathy
first node affected by a disease process
primary node
second set of nodes affected by a disease process
secondary node
third set of nodes affected by a disease process
tertiary node
superficial nodes drain into _______ tissue
deep
superior nodes drain into ________ tissue
inferior
what are the superficial nodes of the head
occipital
retroduricular
anterior auricular
superficial parotid
facial
what are the two divisions of the superficial lymph nodes of the neck
submandibular and submental
located close to the angle of the mandible
submandibular lymph nodes
drain all teeth aside from mandibular incisors and sometimes third molars
submandibular lymph nodes
also drain submental and facial lymph nodes
submandibular lymph nodes
located below chin near midline
submental lymph nodes
what teeth do submental lymph nodes drain
mandibular incisors
what do submental lymph nodes drain into
submandibular nodes or directly into deep cervical lymph nodes
what are the deep lymph nodes of the head
deep parotid lymph nodes
retropharyngeal lymph nodes
what do the deep lymph nodes of the head drain into
deep cervical lymph nodes
deep lymph nodes of the neck form a vertical chain surrounding the _________ ________ ________
internal jugular vein
deep lymph nodes of the neck are divided into what groups
superior and inferior
where do the deep lymph nodes of the neck drain into
major lymph vessels called jugular trunks
deep cervical lymph nodes drain what teeth
third molars (particularly maxillary)
deep cervical lymph nodes include what other lymph nodes
jugulodigastric lymph nodes
what do the jugulodigastric lymph nodes drain
palatine tonsils
inferior deep cervical lymph nodes include the _________ lymph nodes
jugulo-omohyoid nodes
the jugulo-omohyoid lymph nodes drain the __________ ________ and _________
submental nodes and tip of the tongue
collect lymph from the deep cervical lymph nodes
jugular trunks
lymph drains from the jugular trunks into the _______ ________ ________ and the ________ _______
right lymphatic duct
thoracic duct
the right lymphatic duct comes from the _______ side of the head and neck
right
the thoracic duct comes from the _________ side of the head and neck
left
where do the right lymphatic duct and thoracic duct drain
blood where the internal jugular vein meets the subclavian vein
