Lymphatics of the head and neck Flashcards
What are the different types of lymph nodes?
Regional
Terminal
What is the difference between the location of regional and terminal lymph nodes?
Regional lymph nodes are superficial
Terminal lymph nodes are deep
What is the difference between the drainage of regional and terminal lymph nodes?
Regional lymph nodes drain lymph from specific areas
Terminal lymph nodes recieve lymph from multiple regional lymph nodes
What is the difference between the palpability of the regional and terminal lymph nodes?
When swollen, the regional lymph nodes are easily palpable
However the terminal lymph nodes may not be palpable even when swollen
How many lymph nodes are there in the neck?
300
What proportion of all the body’s lymph nodes are there in the neck?
3/8
Where are the regional lymph nodes of the neck located?
In the superficial cervical fascia
Where are the terminal lymph nodes of the neck located?
Deep to the investing layer of cervical fascia
deep to sternocleidomastoid
mostly in the carotid sheath with the IJV
How many regional lymph node groups of the head and neck are there?
Eight
What are the groups of regional lymph nodes of the head and neck?
Sub-mental
Sub-mandibular
Pre-aruticular
Post-auricular
Occipital
Anteror to EJV
Posterior to EJV
Inferior to EJV
Which regional lymph node group drains lymph from around the eye?
Pre-auricular
How many groups of terminal lymph nodes of the head and neck are there?
Three
What are the groups of terminal lymph nodes of the head and neck?
Jugulo-digastric
Jugulo-omohydroid
Supraclavicular
What is another name for the jugular-digastric node?
Tonsillar node
Where is the jugular-digastric node located?
Posteriorly and inferiorly to the angle of mandible
