General Organisation of the Head and Neck Flashcards
how many layers of fascia are there in the neck
1 superficial cervical fascia and 3 deep
what are the 3 deep fascia in the neck
investing layer, pretracheal layer and the prevertebral layer
what is contained in the superficial cervical fascia
adipose tissue, neurovascular structures, lymph nodes and the platysma muscles
what is the main blood vessel found within the superficial crevice fascia
external jugular vein
what is contained within the investing fascia layer
SCM and trapezius muscle, sublingual and parotid salivary glands
where is the retropharyngeal space found
behind the buccopharyngeal membrane and the pre-vertebral membrane
what are the symptoms of a retropharyngeal abscess
difficultly swallowing, painful movement of the neck
what is enclosed in the carotid sheath
carotid artery, internal jugular vein, vagus nerve
what forms the anterior triangle in the neck
anterior border of SCM, midline of the neck and lower margin of the mandible
what forms the posterior triangle in the neck
posterior border of SCM, anterior border of trapezius and the clavicle
what forms the carotid triangle
anterior border of SCM, posterior border of omohyoid and inferior border of digastric
which cranial nerve root is the trigeminal nerve
5
which cranial nerve root is the facial nerve
7
which cranial nerve root is the accessory nerve from
11
what are the 3 branches of the trigeminal nerve
ophthalmic, maxillary and mandibular
what are the 5 roots of the facial nerve
temporal, zygomatic, buccal, mandibular, cervical
what does the trigeminal nerve supply
sensory innervation to the face and motor innervation of the muscles of mastication