Q3 Neck

where does the hyoid lie

C3-C4

How is the hyoid placed in the body

suspended by muscles

Platysma origin

inferior border of mandible

platysma insertion

fascia covering superior parts of pectoralis major

what is platysma known as

muscle of facial expression

what is the platysma innervated by

Facial nerve (CV VII)

superficial fascia of neck

skin, subcutaneous fascia, platysma

what are the 3 fascial layers of the deep cervical of the neck

investing, pretracheal, prevertebral

what surrounds the carotid arteries

carotid sheath

what does the investing fascia invest

trapezius, sternocleidomastoid, submandibular gland and parotid gland

sternocleidomastoid origin

lateral surface of mastoid process of temporal bone

sternocleidomastoid insertion

anterior surface of manubrium of sternum

sternocleidomastoid innervation

Spinal accessory nerve (XI)

Unilateral action of sternocleidomastoid

laterally flexes neck

bilateral action of sternocleidomastoid

extends neck at atlantooccipital joints

pre tracheal fascia blends with

the fibrous pericardium

What are the 2 parts of the pretrachial fascia

muscular and visceral

prevertebral fascia is considered the

tubular sheath for the vertebral column and associated muscle

what is the floor of the posterior triangle

prevertebral fascia

Carotid sheath carries what

internal jugular vein, vagus nerve, and common and internal carotid arteries

what connects the carotid sheaths

alar fascia

what is the most important interfacial space

retropharyngeal space

left common carotid originates from

aortic arch

where does the right common carotid artery originate from

brachiocephalic trunk

sternocleidomastoid region

lesser subclavicular fossa

lateral cervical region contains

posterior triangle

what 2 triangles are in the posterior triangle

occipital and omoclavicular

what are the main contents of the sternocleidomastoid region

sternocleidomastoid muscle, superior part of external jugular vein, greater auricular nerve, transverse cervical vein

contents of posterior cervical region

trapezius, cutaneous branches of posterior rami of cervical spine nerves

what lies deep to the superior part of thee posterior cervical region

suboccipital triangle

contents of the Occipital triangle

part of the external jugular vein, posterior branches of the cervical plexus, spinal accessory nerve, trunks of brachial plexus, cervicodorsal trunk, cervical lymph nodes

contents of the omoclavicular triangle

subclavian artery, suprascapular artery, and supraclavicular lymph nodes

Arteries of the lateral cervical region (posterior triangle)

thyrocervical trunk, subclavian artery (3rd part), occipital artery

external carotid artery branches acryonym

some anatomy professors like freaking out poor medical students