Lymphatic Vessels

  1. The lymphatic vessels are a system of
    channels that parallel the venous blood vessels yet are more numerous
  2. Tissue fluid drains from the surrounding region into
    the lymphatic vessels as lymph
  3. The lymph nodes are
    bean-shaped bodies grouped in clusters along the connecting lymphatic vessels
  4. Positioned ________, the lymph nodes _______
    • beside the lymphatic vessels
    • filter toxic products from the lymph to prevent their entry into the vascular system
  5. lymph nodes are part of the ______ system, which is part of the ______ that includes the _____
    • lymphatic
    • immune system
    • thymus and spleen
  6. The lymph nodes are composed of _______ and contain ________ which they are also ______
    • organized lymphoid tissue
    • lymphocytes
    • involved in producing
  7. In healthy patients, lymph nodes are usually
    small, soft, and free or mobile in the surrounding tissue
  8. The lymph flows into the lymph node by way of
    afferent vessels
  9. On one side of the node is a depression or ____, where the lymph _______by way of a single _______
    • hilus
    • flows out of the node
    • efferent vessel
  10. Lymph from a particular region first drains into a _______
    primary node (regional node or master node).
  11. Primary nodes, in turn, drain into a
    secondary node (central node).
  12. Tonsils consist of
    masses of lymphoid tissue located in the oral cavity and pharynx
  13. ˜In the outer tissue of the body, smaller lymphatic vessels containing lymph converge into ________, which empty into the _______
    • larger lymphatic ducts
    • venous system of the blood in the thorax (chest area).
  14. However, the final drainage endpoint of the lymphatic vessels into the lymphatic ducts depends on
    which side of the body is involved
  15. The lymphatic system of the right side of the head and neck converges by way of the _______, joining the lymphatic system from the _______to form the _____, which drains into the venous component at the junction of the _______
    • right jugular trunk
    • right arm and thorax (chest)
    • right lymphatic duct
    • right subclavian and right internal jugular veins
  16. The lymphatic vessels of the left side of the head and neck converge into the ______, actually a short vessel, and then into the ________, which joins the venous component at the junction of the _______
    • left jugular trunk
    • thoracic duct
    • left subclavian and left internal jugular veins
  17. The thoracic duct is _______ than the right lymphatic duct because it ________
    • much larger
    • drains the lymph from the entire lower half of the body
  18. lymphadenopathy
    increase in size and change in consistency of the lymphoid tissue
  19. lymphadenitis commonly occurs with
    microbial infections, such as with Staphylococcus aureus and Streptococcus pyogenes infections locally with tonsillar or oral abscesses as well as systemically with mononucleosis or HIV infections
  20. Infectious mononucleosis is caused by the
    Epstein-Barr virus (EBV)
  21. metastasis
    Spread of cancer from the original or primary site to another or secondary site
  22. ˜Five groups of paired superficial lymph nodes that are located in the head and all drain into the deep cervical nodes.
    • ˜occipital
    • ˜posterior auricular
    • ˜anterior auricular˜
    • superficial parotid
    • ˜facial
  23. The ______ lymph nodes are approximately 1 to 3 in number
    • occipital
    • posterior auricular
    • anterior auricular
  24. The posterior auricular nodes are located
    where the sternocleidomastoid (SCM) muscle inserts on the mastoid process
  25. The anterior auricular lymph nodes are located
    immediately anterior to each tragus
  26. The superficial parotid lymph nodes are located ______
    just superficial to each parotid salivary gland
  27. The posterior auricular, anterior auricular, and superficial parotid nodes drain the
    external ear, lacrimal gland, and adjacent regions of the scalp and face.
  28. The facial lymph nodes are located ______
    along the facial vein
  29. What are the four subgroups of the facial lymph nodes
    • the malar
    • nasolabial
    • buccal
    • and mandibular
  30. malar lymph nodes are located in the
    infraorbital region
  31. buccal lymph nodes are located
    around the labial commissure and just superficial to the buccinator muscle
  32. deep nodes of the face include the
    deep parotid and retropharyngeal lymph nodes
  33. The deep parotid lymph nodes drain the _______
    middle ear, auditory tube, and parotid salivary gland
  34. The four groups of superficial cervical lymph nodes include
    • submental
    • submandibular
    • external jugular
    • anterior jugular
  35. The submandibular lymph nodes are located at ________
    the inferior border of the mandibular ramus, just superficial to the submandibular salivary gland
  36. The submandibular nodes are the primary nodes for ______ except _______ in the  and _______ in the
    • The submandibular nodes are the primary nodes for
    • the maxillary third molars (superior deep cervical nodes)
    • mandibular incisors (submental nodes)
  37. The deep cervical lymph nodes are located along the
    length of the internal jugular vein
  38. The deep cervical nodes can be divided into two groups where
    the omohyoid muscle crosses the internal jugular vein
Card Set
Lymphatic Vessels
Lymphatic Vessels