Level of Cervical Lymphnode & Triangle of Neck

Level I: submental and submandibular
superiorly: mylohyoid muscle and mandible
inferiorly: inferior border of the hyoid bone
anteriorly: platysma muscle
posteriorly: posterior border of the submandibular gland
​There are two sublevels:
level Ia (submental nodes): anteromedial between the anterior bellies of both digastric muscles
level Ib (submandibular nodes): posterolateral to the anterior belly of the digastric muscles
Level II: upper internal jugular (deep cervical) chain
superiorly: base of the skull at the jugular fossa
inferiorly: inferior border of the hyoid bone
anteriorly: posterior border of the submandibular gland
posterolaterally: posterior border of the sternocleidomastoid muscle
medially: medial border of the internal carotid artery
​There are two sublevels:
level IIa: inseparable from or anterior to the posterior edge of the internal jugular vein; includes jugulodigastric nodal group
level IIb: posterior to and separable by a fat plane from the internal jugular vein
Level III: middle internal jugular (deep cervical) chain
superiorly: inferior border of the hyoid bone
inferiorly: inferior border of the cricoid cartilage
anteriorly: anterior border of the sternocleidomastoid muscle
posterolaterally: posterior border of the sternocleidomastoid muscle
medially: medial border of the common carotid artery
Level IV: lower internal jugular (deep cervical) chain
superiorly: inferior border of the cricoid cartilage
inferiorly: level of the clavicle
anteriorly: anterior border of the sternocleidomastoid muscle
posterolaterally: oblique line drawn through the posterolateral edge of the sternocleidomastoid muscle and the lateral edge of the anterior scalene muscle 2
medially: medial border of the common carotid artery
includes medial supraclavicular nodes including Virchow node 1
Level V: posterior triangle
superiorly: skull base at the apex of the convergence of sternocleidomastoid and trapezius muscles
inferiorly: level of the clavicle
anteromedially: posterior border of the sternocleidomastoid muscle
posterolaterally: anterior border of the trapezius muscle
​There are two sublevels:
level Va: superior half, superior to inferior border of the cricoid cartilage (posterior to levels II and III); includes spinal accessory nodes
level Vb: inferior half, inferior to inferior border of the cricoid cartilage (posterior to level IV); includes lateral supraclavicular nodes 1
Level VI: central (anterior) compartment
superiorly: inferior border of hyoid bone
inferiorly: superior border of manubrium (suprasternal notch)
anteriorly: platysma muscle 8
posteriorly: trachea (medially) and prevertebral space (laterally) 8
laterally: medial borders of both common carotid arteries (medial to levels III and IV)
includes anterior jugular, pretracheal, paratracheal, prelaryngeal/precricoid (Delphian), and perithyroidal nodes

[@mortadhaqasim959]

Well done

[@AcademiaCoaches]

Nice info Biological Medico.

[@BiologicalMedico]

Thank you

[@SardarKhan-mf5lu]

Thank you

[@harleenvirk3070]

Thank you so much

[@bohaedris3877]

Great 👍
Thank you

[@maryamasif6935]

Great video! What is the reference book you used?

[@BiologicalMedico]

Bedside Clinics and Surgery Dr ML Saha