Parathyroid, Trachea and Mediastinum Flashcards
The vertebral border of the superior mediastinum
T1 to T4
Name the 3 divisions of the inferior mediastinum
Anterior, Middle, Posterior
Name the contents of the middle mediastinum
Pericardium, heart and roots of great vessels, phrenic nerves, bifurcation of trachea
Cite the contents of the posterior mediastinum
descending throracic aorta, esophagus, thoracic duct, azygous, hemiazygous, vagus, splanchnic, sympathetic plexus
What is the length of the trachea?
5 inches
What is the arterial supply of the trachea?
Upper 2/3 - Inferior thyroid artery
Lower 1/3 - bronchial artery
What is the innervation of the trachea?
Vagus and RLN
In doing a cricothyroidectomy, the tube is inserted between ___
cricoid and thyroid cartilage
In doing a tracheotomy, the opening is done ___
- Between 1st and 2nd tracheal ring
2. 2nd through 4th tracheal ring
[Parathyroid gland]
Which has a more constant position?
Superior parathyroid
[Parathyroid gland]
What cell produces the parathyroid hormone?
Chief cell
Oxyphil cell is located in ___
parathyroid gland
___ cells produce calcitonin
parafollicular (C) cell
__ cells produce T3/T4
Follicular cell
__ chief cell in the stomach produce
pepsinogen
____ oxyntic cell produce
HCl, intrinsic factor
[Parathyroid gland]
The 3rd pharyngeal pouch gives rise to ____
inferior parathyroid
[Parathyroid gland]
the 4th pharyngeal pouch gives rise to
superior parathyroid
Ectopic parathyroids is frequently seen in the ____
superior mediastinum
[Mediastinum: location)
the ascending aorta
middle mediastinum
[Mediastinum: location)
descending aorta
posterior mediastinum
[Mediastinum: location)
SVC/IVC
middle mediastinum
[Mediastinum: location)
Azygous/Hemiazygous
posterior mediastinum
[Mediastinum: location)
esophagus
posterior mediastunum
[Mediastinum: location)
main bronchi
middle
[Mediastinum: location)
recurrent laryngeal nerves
middle
[Mediastinum: location)
Two pincipal bronchi
middle
The C cells of the thyroid gland is from what embryonic structure
4th pharyngeal pouch