copy 1 Flashcards
What is the “false capsule” that covers the thyroid gland formed by?
pretracheal fascia
What are the right and left lobes of the thyroid connected by and how does this structure extend and what tracheal cartliges does it cross?
They are connected by a narrow isthmus.
The isthmus continues upwards crossing the second and third tracheal cartilages.
What is the structure that extends from the isthmus that is found in some people called?
Pyrimdal lobe that ascends towards the hyoid bone
What are the posterior relations of the thyroid gland?
Trachea, esophagus, larynx, pharynx
What are the two muscles that lie infront of the thyroid gland?
sternothyroid and sternohyoid muscles
What are the vessels that lie postero-lateral to the thyroid gland?
Common carotid artery and internal jugular vein
What arch is the trachea attached to and what unique feature does this give it?
Attached to the arch of the cricoid cartlige and moves up down while swallowing and osillatces while speaking
What is the main arterial supply of the thyroid gland and where do those arteries lie and anastmose?
Main: Superior and inferior thyroid arteries
Lie Between the capsule and the pretracheal fascia
Anastmose inside the matter of the thyroid
What is the superior thyroid a branch of and where does it descend?
It is a branch of the External carotid artery and it descends towards the superior lobe of the thyroid
What is the inferior thyroid artery a branch of and how does it run?
It is a branch of thyro-cervical trunk
It runs superomedially posterior to carotid sheath reaches posterior aspect of the gland and supplies the inferior pole of the gland
What nerve does the inferior thyroid artery have a relationship with?
Recurrent larygeal nerve
