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neck anatomy flashcards

Where are the vertebral artery and vein located in the neck?

They travel through the foramen transversarium

What is different about cervical transverse processes?

they are BIFID

What is another name for C7?

Vertebra prominens

Origin of the anterior and middle scalenes

Transverse processes of cervical vertebrae

Name of the most superficial muscle of the neck, used in facial expressions


Platysma innervation

CN VII (facial)

Most superficial fascia of neck

Investing fascia

Fascia containing trachea, esophogas, etc

Visceral/Pretracheal fascia

Fascia surrounding vertebral column and intrinsic muscles

Prevertebral layer

The axillary sheath arises from what fascia layer

Prevertebral fascia

Trapezius innervation

CN XI motor, C2 proprioreception

Sternocleidomastoid innervation

CN XI motor, c2 proprioreception


spasms of SCM

Boundaries of posterior triangle

middle third of clavicle, SCM, trapezius

Floor of posterior triangle

Splenius capitis, levator scapulae, anterior and middle scalenes, poster scalene

4 cutaneous nerves of the posterior triangle

lesser occipital, great auricular, supraclavicular, transverse cervical

Dermatomes of the neck


Veins of the poseterior triangle

external jugular (medial), subclavian (inferior)

a central line can be started where?

Internal jugular vein between the heads of the SCM

nerves found in the posterior triangle

Spinal accessory, dorsal scapular, long thoracic, phrenic, Roots and trunks of brachial plexus

What intrinsic muscles are located directly on the vertebral column in the neck?


Function of the scalenes

flexion and lateral bending of neck

Branches of the thyrocervical trunk

Suprascapular, transverse cervical, inferior thyroid.

The nerve to the geniohyoid and the nerve to the thyrohyoid run with what nerve?


Name the infrahyoid muscles

omohyoid, thyrohyoid, sternohyoid, sternothyroid

innervation of thyrohyoid

Nerve to thyrohyoid (c1)

innervation of omohyoid

ansa cervicalis

Innervation of sternothyroid

ansa cervicalis

innervation of sternohyoid

ansa cervicalis

The ansa cervicalis superior root comes from which spinal nerve


the ansa cervicalis inferior root comes from which spinal nerve


Great auricular nerve roots

c2, c3

Transverse cervical nerve roots

c2, c3

supraclavicular nerve roots

c3, c4

phrenic nerve roots

c3, c4, c5

what can be found at C6?

pharynx to esophagus
larynx to trachea
middle cervical sympathetic ganglion

What can be found at c4?

Bifurcation of the carotid artery

Laryngeal cartilages from superior to inferior

hyoid bone, thyroid cartilage, cricoid cartilage

site for an emergency intubation (oral blocked)

cricothyroid ligament (called a cricothyroidectomy)

spinal levels of Hyoid, thyroid, cricoid

(C3) (C4,C5) (C6)

Which cartilage forms a complete ring?


Boundaries of the carotid triangle

SCM, superior belly of omohyoid, posterior belly of digastric

Boundaries of Submandibular triangle

mandible, anterior belly of digastric, posterior belly of digastric

Muscular triangle borders

Superior belly of omohyoid, midline, hyoid bone

Submental triangle borders

superior belly of omohyoid, hyoid bone

What does the carotid body have receptors for?

chemoreceptors for CO2 and O2.

where can you find the carotid body?

Over the bifurcation of the carotids

What nerves make up the carotid reflex?

Vagus motor, Glossopharyngeal sensory

what major nerve innervates the larynx


Branches of the vagus in the larynx

Pharyngeal branch of vagus, recurrent laryngeal nerve, superior laryngeal n, external laryngeal nerve

Cricothyroid innervation

external laryngeal nerve

Sensory to Larynx below vocal fold

recurrent laryngeal nerve

motor to intrinsic muscles of larynx

Recurrent laryngeal nerve

What intrinsic muscle of larynx isn't innervated by the recurrent laryngeal


Cricothyroid innervation

external laryngeal nerve

Motor to pharynx

pharyngeal branch of vagus

what nerve is deep to the superior thyroid artery?

External laryngeal nerve

features of carotid triangle

CN XII, ansa cervicalis, bifurcation of carotids, N to thyrohyoid

Superior laryngeal artery branches from where?

Superior thyroid artery

what nerve runs with superior laryngeal a?

internal laryngeal n

what nerve runs w superior thyroid artery?

external laryngeal nerve

What ganglion is associated with CN III


ganglion of CN VII

Pterygopalatine, Submandibular

Ganglion of CN IX


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