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Regio cervicalis
anterior
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Trigonum
cervicale
anterius
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impair triangle
cranially: lower margin of corpus mandibulae
laterally: ventral border of m. sternocleidomastoideus
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trigonum submandibulare
trigonum submentale
trigonum caroticum
trigonum musculare (omotracheale)
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Trigonum submandibulare
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cranially: lower margin of corpus mandibulae
medially: venter ant. m. digastrici
laterally: venter post. m. digastrici
bottom: m. mylohyoideus and m. hyoglossus
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glandula submandibularis
vasa facialia (+ their branches)
ductus submandibularis
n. lingualis
ganglion submandibulare
a. lingualis
n. hypoglossus + v. comitans n. hypoglossi
nodi lymphoidei submandibulares
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Trigonum caroticum
(Malgaigne)
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cranially: venter post. m. digastrici
caudally: venter sup. m. omohyoidei
laterally: m. sternocleidomastoideus
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n. hypoglossus (running as arcus n. XII ventrally
of the blood vessels) + v. comitans n.
hypoglossi
truncus sympathicus + ganglion
cervicale superius
n. accessorius
nodi lymphoidei cervicales profundi
glandula thyroidea
in vagina carotica:
a. carotis communis – branching
at the level of C4
(med.)
a. carotis int.
a. carotis ext. + its branches and their veins
v. jugularis int. + its tributaries (laterodors.)
radix sup. ansae cervicalis profundae (ventr.)
n. vagus + n. laryngeus sup. (dors.)
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Trigonum musculare
(Fossa suprasternalis)
(Trigonum omotracheale)
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cranially: corpus ossis hyoidei
caudally: incisura jugularis sterni
craniolaterally: vent. sup. m. omohyoidei
caudolaterally: m. sternocleidomastiodeus
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larynx → trachea
glandula thyroidea + its vessels and nerves
m. sternothyroideus, m. sternohyoideus and m.
thyrohyoideus
arcus venosus jugularis
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Trigonum submentale
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laterally: ventera ant. mm. digastricorum
ventrocranially: corpus mandibulae
caudally: corpus ossis hyoidei
bottom: mm. mylohyoidei
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vasa submentalia
nodi lymphoidei submentales
nn. mylohyoidei
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Trigonum a. lingualis
(Trigonum Pirogovi)
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cranially: n. hypoglossus
ventrally: dorsal border of m. mylohyoideus
caudally: venter post. m. digastrici
bottom: m. hyoglossus
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a. lingualis (ligation)
(v. lingualis)
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Angulus Béclardi
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cranially: venter post. m. digastrici + m. stylohyoideus
caudally: cornu majus ossis hyoidei
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a. lingualis (ligation)
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Regio sternocleidomastoidea
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Fossa supraclavicularis minor
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medially + laterally: origins of m. sternocleidomastoideus
caudally: clavicula
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cupula pleurae projects in the depth
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Regio cervicalis
lateralis
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Regio cervicis lateralis
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cranially - top: proc. mastoideus
ventrally: dorsal border of m. sternocleidomastoideus
dorsally: ventral border of m. trapezius
caudally: clavicula
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trigonum omotrapezium
trigonum omoclaviculare
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Trigonum omoclaviculare
corresponds to superficial Fossa supraclavicularis
major |
cranially: venter inf. m. omohyoidei
caudally: clavicula
ventrally: doral border ofj m. sternocleidomastoideus
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vasa subclavia
angulus venosus (+ estuary of ductus thoracicus
(left) / ductus lymphaticus dx. + its tributaries)
plexus brachialis
nodi lymphoidei supraclaviculares (Virchow-Troisier)
n. phrenicus
a. cervicalis ascendents + v. vertebralis anterior
a. transversa cervicis (or only its branch r. superficialis) vasa suprascapularia
nn. supraclaviculares
v. jugularis externa
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Trigonum omotrapezium
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ventrally: doral border of m. sternocleidomastoideus
dorsally: ventral border of m. trapezius
caudally. venter inf. m. omohyoidei
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v. jugularis externa (+its tributarie, e.g. vv.
transversae colli)
a. transversa colli (+ its branches)
a. cervicalis ascendents + v. vertebralis anterior + n. phrenicus
vasa cervicalia profunda
a. transversa cervicis (or only its branches) punctum nervosum + its branches
n. accessorius
pars supraclavicularis plexus brachialis
nodi lymphoidei cervicales
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...and in depth |
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Trigonum scalenovertebrale
(in the depth of trig. omoclaviculare)
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dorsally: m. longus colli
laterally: m. scalenus ant.
caudally: cupula pleurae
medially: trachea, esophagus, glandula thyroidea
ventrally: m. sternocleidomastoideus
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a. subclavia (pars intrascalenica)
plexus brachialis
truncus sympathicus (ggl. stellatum) +
ansa subclavia
nn. cardiaci cervicales
ductus thoracicus (on the left side only)!
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Fissura scalenorum |
ventrally: m. scalenus anterior
dorsally: m. scalenus medius
caudally: clavicula |
a. subclavia (subclavian vein runs in front of m. scalenus ant.)
a. transversa cervicis (or only its branch r. profundus)
plexus brachialis |
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Trigonum Killiani |
cranially: pars (m.) thyropharyngea m. constrictoris pharyngis inferioris
caudally: pars (m.) cricopharyngea m. constrictoris pharyngis inferioris |
weakened wall - possible site of pulse diverticle (of Zenker) occurence |
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Trigonum Laimeri |
cranially: pars (m.) cricopharyngea m. constrictoris pharyngis inferioris
caudally: superior oblique fibres of longitudinal oesophageal muscle layer
floor: circular oesophageal muscle layer |
weakened wall - possible site of pulse diverticle occurence |
