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Thyroid, PTH, Root of Neck
Gross Anatomy
47
Medical
Professional
03/21/2011

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Cards

Term
Where is the thyroid gland located?
Definition
C5-T1
Term
the thyroid is contact with the carotid sheath where?
Definition
LATERALLY
Term
where is the isthmus located?
Definition
it crosses the anterior surface of tracheal rings of 2 and 3
Term
what is the pyramidal lobe?
Definition
remnant of development
Term
the superior and middle thyroid veins are tributaries of?
Definition
internal jugular vein
Term
the right and left thyroid veins drain into?
Definition
right and left brachiocephalic vein.
Term
Describe the course of the recurrent laryngeal nerve.
Definition
immediately posterior to the thyroid gland.
Term
what is a possible consequence of removing the thyroid?
Definition
recurrent laryngeal nerve injury--> hoarseness of the voice
Term
what is the inferior thyroid a tribuatary of?
Definition
brachiocephalic vein
Term
What is the derivation of the inferior thyroid a?
Definition
thyrocervical trunk
Term
what are the contents in the root of the neck?
Definition
carotid sheath
common carotid a.
internal jugular v.
vagus n.
thoracic duct
right lymph duct
phrenic n.
Term
what is the external jugular vein a tribuatary of?
Definition
subclavian vein
Term
what forms the brachiocephalic vein?
Definition
subclavian and internal jugular vein
Term
where does the first part of the subclavian artery end?
Definition
medial border of the anterior scalene muscle
Term
where is the second part of the subclavian artery found?
Definition
posterior to the anterior scalene muscle
Term
third part of subclavian artery
Definition
lateral border of ant. scalene and first rib
Term
what is the origin of the vertebral artery? where does it terminate?
Definition
first part; transverse foramen of vertebra C6
Term
what is the origin of the internal thoracic a?
Definition
first part. supplies anterior thoracic wall
Term
what is the blood supply to the trapezius muscle?
Definition
transverse cervical a.
Term
supplies supra and infraspinatus muscles
Definition
supracapular artery
Term
Trace the inferior thyroid artery
Definition
passes posterior to the cervical sympathetic trunk.
Term
this is a branch of the inferior thyroid artery
Definition
ascending cervical artery
Term
second part of the subclavian artery
Definition
costocervical trunk
Term
gives rise to posterior intercostal arteries 1 and 2
Definition
supreme intercostal artery
Term
This drains into the right subclavian and right internal jugular veins
Definition
right lymphatic duct
Term
where can the carotid pulse be found?
Definition
common carotid artery bifurcation
Term
What is the origin of the internal carotid artery on the left side?
Definition
Aortic arch
Term
origin of internal carotid a. on right side?
Definition
brachiocephalic a.
Term
The right vagus nerve passes __________ to the subclavian artery to give off what?
Definition
Anterior; right recurrent laryngeal
Term
the left vagus passes what to give off the left recurrent laryngeal?
Definition
aortic arch
Term
what is the relationship between the phrenic nerve and anterior scalene muscle?
Definition
phrenic crosses ANTERIOR to it
Term
relationship b/t phrenic nerve and root of lung
Definition
it passes anterior to root of lung
Term
what can become compressed in the interscalene triangle?
Definition
subclavian artery and brachial plexus
Term
relationship of subclavian vein, transverse cervical a, and suprascapular a. and anterior scalene?
Definition
they ALL CROSS ANTERIOR
Term
What are the primary rami of ansa cervicalis?
Definition
ventral rami C1-3
Term
The visceral region is surrounded by which fascia
Definition
pretracheal fascia
Term
origin of inferior thyroid a.
Definition
thyrocervical trunk-->subclavian a.
Term
relationship of carotid sheath to subclavian a. and v.?
Definition
ANTERIOR to subclavian a.
POSTERIOR to subclavian v.
Term
This nerve is posterior the vagus n. and the sympathetic trunk
Definition
thyrocervical trunk
Term
Where can the ascending branch of the cervical a. be found?
Definition
behind the carotid sheath
MEDIAL to phrenic n.
Term
The sympathetic trunk is only anterior to this
Definition
inferior thyroid a.
Term
anterior scalene passes b/t these two vessels
Definition
subclavian a. and v.
Term
these lymph nodes drain into ant. and ext. jugular v.
Definition
submental and submandibular
Term
What is the drainage pattern of the head?
Definition
downward and laterally towards INTERNAL JUGULAR v.
Term
This drains the tonsil
Definition
jugulodigastric node
Term
this collects the deep cervical nodes
Definition
jugular trunk
Term
what are the three branches of the thyrocervical trunk?
Definition
transverse cervical a.
suprascapular a.
inferior thyroid.
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