Retropharyngeal space

Bounding Fasicas:-buccopharyngeal

-alar

-carotid sheath

-Extends from skull into mediastinum

-Longus colli

-longus capitis

-small capitis mm. attaching around cranio-vertebral joint

Prevertebral region

joints

atlanto-occipital joint(flexion and extension of the head)

-atlantoaxial joint(turning head side-to-side

Bothe are strengthened by ligaments

Cervical Sympathetic Trunk

-Preganglionic (from T1 and L2)

-Pregang. ascend the cervical part of symp. trunk

-Synapse in cervical gang.

-Postgang. distribute to blood vessels, smooth m and glands of head and neck