Shared Flashcard Set

Details

Root of Neck
Viscera & Vasculature of Root of Neck and Deep Neck
23
Anatomy
Graduate
02/01/2011

Additional Anatomy Flashcards

 


 

Cards

Term
Contents of Root of Neck
Definition

- Subclavian Vessels

- vagus nerve
- Recurrent Laryngeal nerves

- Phrenic Nerve

- Cervical sympathetic trunk

- thoracic duct

-apex of lung

Term
Boundaries of Root of Neck
Definition
Manubrium, Clavicle, Scapula, T1 vertebra, first ribs
Term
Branches & Location of Parts of Subclavian Arteries
Definition

1st Part: medial to anterior scalene

Branches: vertebral, thyrocervical trunk, internal thoracic (*on left side, costocervical trunk)

2nd Part: behind anterior scalene

Branches: dorsal scapular, costocervical trunk

3rd Part: lateral to anterior scalene, no branches 

Term
Branches of Thyrocervical Trunk
Definition
Inferior Thyroid Artery, Suprascapular Artery, Ascending Cervical Artery (branches into superficial branch & deep branch of transverse cervical artery)
Term
What is the importance of the inferior thyroid artery?
Definition
it goes behind the thyroid inbetween the parathyroid glands, you can trace the artery without reflecting the thyroid gland and locate the parathyroid glands. 2 superior glands 1 cm above and 2 inferior 1 cm below
Term
Branches of Costocervical Trunk
Definition

supreme intercostal artery

deep cervical artery

Term
What is the only tributary into the subclavian vein?
Definition
external thoracic
Term
Inferior cervical ganglion fuses with 1st thoracic ganglion to become...
Definition
Stellate ganglion, at the C7 level, blocked for pain, onset of horner's syndrome indicates successful block
Term
Superior cervical ganglion
Definition
largest of the cervical ganglia, C2-C3 level, contains neurons that supply sympathetic innervation to the face
Term
Middle Cervical Ganglion
Definition
smallest of the three, sends gray rami to 5th & 6th cervical nerves, gives off middle cardiac nerve
Term
What structures arise from sympathetic chain of deep neck? Where are the postganglionic cell bodies?
Definition

Structures: internal & external carotid plexuses,

cardiac nerves,

ansa subclavia

 

the superior cervical ganglion contains the postganglionic cell bodies

Term
What is the ansa subclavia?
Definition
nerve cord that is connection b/w middle & inferior cervical ganglion, forms a loop around subclavian artery
Term
Cervical sympathetic Trunk pre- & postganglionics
Definition

pre-ganglionics arise in upper thoracic spinal cord segments, pass through white communicating rami, ascend in trunk to superior cervical ganglion


postganglionics to neck pass through gray communicating rami to cervical nerves to be distributed to sweat glands, blood vessels, erector pili muscles


post ganglionics to the head leave the superior cervical ganglion and follow blood vessels to structures of the head

Term
What is horner's syndrome and what are the symptoms?
Definition

Horner's syndrome - an interruption of oculo-sympathetic pathway leading to sympathetic inactivity

Symptoms: Ptosis (drooping eyelid), Anhidrosis, Miosis (affected pupil smaller)

20-40% caused by second order neuron; thoracic/neck tumor; pancoast's tumor

Term
Recurrent laryngeal nerve splits into.....before suppliying muscles of the voicebox
Definition
anterior & posterior rami
Term
Recurrent laryngeal nerve innervates all laryngeal muscles except which? and what is that muscle supplied by?
Definition
cricothyroid, innervated by external branch of the superior laryngeal nerve
Term
Where does the recurrent laryngeal nerve enter the pharynx?
Definition
below the inferior constrictor muscle, along with the inferior laryngeal artery
Term
What is the clinical significance of the recurrent laryngeal nerve? 
Definition
important in thyroid surgery, as it runs immediately posterior to this gland. If it is damaged during surgery, the patient will have a hoarse voice. Similar problems may arise due to invasion of the nerve by a tumor or after trauma to the neck. The right recurrent is more susceptible to damage during surgery because it is more medial.
Term
Where do the superior, middle, and inferior thyroid veins drain?
Definition

superior & middle into internal jugular

 

inferior into brachiocephalic

Term
What arteries supply the thyroid gland? What is the origin of those arteries?
Definition

superior thyroid artery: first branch of the external carotid; posterior glandular branch anastomoses with inferior thyroid artery

 

inferior thyroid artery: branch of the thyrocervical trunk which branches off the first part of the subclavian

Term
What is goiter?
Definition
enlargement of the thyroid gland, possible causes are numerous (inadequate dietary intake of iodine)
Term
What structures may be damaged in a thyroidectomy? 
Definition
recurrent laryngeal branch of vagus nerve and anterior jugular veins
Term
What is thoracic outlet syndrome?
Definition
compression of subclavian artery and/or brachial plexus between scalene muscles and/or bones of the outlet
Supporting users have an ad free experience!