Topography of Neck Krajiny krku > ANTERIOR CERVICAL REGION: REGIO COLLI MEDIA (ANTERIOR TRIANGLE): Trigonum submandibulare Regio submentalis Regio hyoidea Trigonum caroticum Regio infrahyoidea (trig. omotracheale or musculare) REGIO COLLI LATERALIS (POSTERIOR TRIANGLE): Trigonum omoclaviculare (subclavium) Trigonum omotrapezium (occipitale) REGIO STERNOCLEIDOMASTOIDEA Fossa jugularis Fossa supraclavicularis minor Fossa supraclavicularis major Hyoid bone Platysma Fascie krku Superficial fascia and platysma muscle Deep cervical fascia: • Deep investing fascia • Pretracheal fascia (muscular layer, visceral layer) • Alar fascia • Buccopharyngeal fascia • Carotid sheath • Prevertebral fascia Regio submentalis M Trigonum submandibulare Tractus angularis Gl Regio submandibularis 1 V A. et v. facialis sejmout0009 N. hypoglossus N. lingualis sejmout0010 Béclard’s angle Pirogov’s triangle Regio submandibularis 1 Béclard’s angle Pirogov’s tringle Trigonum caroticum-povrch Trigonum caroticum Plexus cervicalis sejmout0015 Regio hyoidea Spatium preepigloticum Regio infrahyoidea Pretracheální žilní pleteň Gll coniotomy (cricothyrotomy) tracheotomy Tracheostomy Regio sternocleidomastoidea Plexus cervicalis N Trigonum scalenovertebrale Trigonum colli posterior