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Cervical Triangles

Cervical Triangles

Cervical Triangles

TERMS

ANTERIOR (CAROTID) CONTENTS CONTAINS:

– Common carotid artery

– Internal jugular vein

– CNX

– Ansa cervicalis

– Sympathetic trunk (stellate ganglion nerve block)

– CN XII

 

POSTERIOR (OCCIPITAL) CONTENTS CONTAINS:

– Subclavian artery

– External jugular vein

– Cervical plexus (nerve block)

– Brachial plexus trunks (nerve block)

– Phrenic nerve

– CN XI

FIGURE 22-9: Cervical Triangles and Nerve Blocks.

A) Diagram of the lateral aspect of the neck showing the cervical triangles and their ocntents. Note that the common carotid artery, internal jugular artery, CN X all lie within the carotid sheath.

(B-D) Photographs of various nerve blocks are shown

B) Stellate ganglion nerve block

C) Cervical plexus nerve block

D) Brachial plexus nerve block

CL = clavicle

DA = digastric muscle (anterior belly)

DP = digastric muscle (posterior belly)

– OM = omohyoid muscle (inferior belly)

P = platysma

SCM = sternocleidomastoid muscle

SH = sternohyoid muscle

TR = trapezius muscle

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