LYMPHATIC SYSTEM consists of: 1. lymph capillaries 2. collecting ...

THE LYMPH VESSELS AND LYMPH NODES OF THE HEAD, NECK AND TRUNK
THE LYMPHATIC DRAINAGE OF THE HEAD AND NECK
Lymph drainage of the superficial tissues of the head and neck
Most lymph vessels accompany branches of external carotid artery
Terminate in small groups of lymph nodes
•Occipital nodes (occipital vessels)
• Retroauricular (posterior auricular vessels)
• Parotid ( temporal superficial vessels)
• Buccal (facial vessels)
• Submandibular (facial vessels in digastric triangle)
Receives afferents from parotid and buccal nodes
and lymph from the oral cavity, tonsils, tongue, teeth)
• Anterior cervical (along the anterior jugular vein)
• Superficial cervical (along the external jugular vein)
nodes represent outlying nodes of deep cervical lymph nodes
the lymph is drained into the deep cervical lymph nodes
Lymph drainage of deep tissues of the head and neck
Directs to the deep cervical lymph nodes
Outlying grops of nodes:
Retropharyngeal – receive lymph from nasopharynx, nasal cavity, auditory tube
Paratracheal nodes – (around trachea and oesophagus) receive the lymph from the larynx,
trachea, oesophagus
the deep cervical lymph nodes
are regional lymph nodes of the head and neck
receive lymph from the superficial and deep structures of the head and neck
lie along the carotid sheath (internal jugular vein, carotid arteries)
subdivided into the superior and inferior group
■ Superior deep cervical lymph nodes
Lie close to the upper part of the internal jugular vein
this group contains jugulodigastric node - near the tendon of digastricus m.- associated
with lymph drainage of the tongue
efferents terminate into the inferior deep cervical lymph nodes
■ inferior deep cervical lymph nodes
around lower part of the internal jugular vein
contain juguloomohyoid node (near the tendon of omohyoid m.)
efferents unite to form
jugular trunk
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