Lymph nodes head and neck Flashcards
Primary lymphatic organs
Lymphocytes produced, mature and become immunocompetent
Primary lymphatic organ example
Red bm
Thymus
Secondary lymphatic organs
LNs Spleen Tonsils MALT Waldeyer's ring (adenoids, tonsils etc)
Which groups of LN are in anterior triangle
Submental, submandibular, carotid, muscular
Where is posterior triangle?
Posterior to SCM but anterior to trapezius
Where is the occipital triangle?
Posterior triangle - behind SCM and infant of trapezius
Superficial groups of LN along EJV
Submental, submandibular, parotid, mastoid, occipital
Deep groups of LN along IJV
Jugulo-digastric, jugulo-omohyoid, pretracheal, oaratracheal, prelaryngeal, retropharyngeal, supraclavicular
Level 1a
Submental
Level 1b
Submandibular
Level 2a
Jugulo-digastric
Level 2b
posterior to IJV
level 3
Middle internal jugular (deep cervical chain)
level 4
lower internal jugular (deep cervical
level 5
posterior triangle (spinal accessory
level 6
anterior triangle (pre-laryngeal, pre- and para-tracheal)
What does pre-auricular/parotid drain?
Eye and face
What does submandibular drain
Oral cavity, tongue and teeth
What does mastoid drain
Scalp
What do the superficial cervical LNs drain
Scalp, ear, skull base and nasopharynx
Where do superficial cervical LNs drain to
Inferior deep cervical LN and then to supraclavicular
