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Superficial Neck - UNC MS1 Anatomy
Superficial Neck - UNC MS1 Anatomy
20
Anatomy
Graduate
12/05/2011

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Cards

Term
what is the vertebral prominens?
Definition
long and palpable spinous process of C7
Term
what are the branches of the subclavian artery?
Definition
“VITamin C and D”
•Vertebral – gets brain, spinal cord
•Internal thoracic
•Thyrocervical trunk
oInferior thyroid, suprascapular, transverse cervical, ascending cervical
•Costocervical trunk
•Dorsal scapular artery
Term
through what does the vertebral artery enter the skull?
Definition
through the foramen magnum at C1
Term
what are other names for C1 and C2?
Definition
C1 - atlas
C2 - axis
Term
what allows for yes and no movements?
Definition
yes - atlanto-occipital joint
no - atlanto-axial joints
Term
what are the suprahyoid muscles?
innervated by what?
Definition
trigeminal (CN V3) - mylohyoid, anterior digastric
facial nerve - posterior digastric, stylohyoid
Term
what are the infrahyoid muscles? innervation?
Definition
 Sternohyoid
 Sternothyroid
 Omohyoid
 Thyrohyoid
innervated by motor portion (ansa cervicalis) of cervical plexus.
except thyrohyoid - C1 directly innervates.
Term
sternocleidomastoid, action and innervation
Definition
flexes neck or turns face when acting unilaterally.
innervated by accessory nerve (CN XI)
Term
What is muscular and spasmodic torticollis?
Definition
muscular - fibrous tissue tumor grows in SCM or SCM is torn in birth --> abnormal muscle contractions
spasmodic - neuro disorder of abnormal tonicity of SCM and/or traps
Term
what is the cutaneous muscle of the neck?
action, innervation
Definition
platysma, pulls lip angles inferiorly and tenses neck skin.
innervated by facial nerve (CN VII)
Term
what are the three layers of deep cervical fascia?
Definition
investing layer (surrounds traps, SCM)
pretracheal layer (hyoid to thorax, muscular and visceral layers)
prevertebral layer (surrounds deep back and scalene muscles and becomes axillary sheath)
Term
what is in the carotid sheath?
Definition
common carotid artery, internal jugular vein, and vagus nerve
Term
what is between the prevertebral and buccopharyngeal fascia (of pretracheal fascia?
significance?
Definition
retropharyngeal and danger spaces, separated by the alar fascia.
major pathway for spread of infection between neck and thorax.
Term
borders of the anterior triangle?
Definition
inferior border of mandible, midline of neck, and anterior border of SCM
Term
borders of the posterior triangle?
Definition
posterior border of SCM, anterior border of traps, and clavicle
Term
what forms the floor of the mouth?
Definition
mylohyoid
Term
what nerve overlays the carotid sheath?
Definition
ansa cervicalis
Term
what are the branches of the external carotid artery?
Definition
S: Superior thyroid artery
A: Ascending pharyngeal artery
L: Lingual artery
F: Facial artery
O: Occipital artery
P: Posterior auricular artery
S: Superficial temporal artery
M: Maxillary artery
Term
what nerves are in the posterior cervical triangle?
Definition
accessory nerve, sensory branches of cervical plexus, and brachial plexus
Term
what does the external jugular vein come from? (two veins)
Definition
posterior auricular and retromandibular veins
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