Thyroid Anatomy Flashcards
What tethers the thyroid to the trachea
pre-tacheal fascia
What is in the pre-tacheal fascia (5)
thyroid recurrent layngeal nerve oesophagus trachea pharynx
What vertebral level is the thyroid at?
C5-T1
Where are the parathyroid glands located on the thyroid?
posterior aspect
What is the function of parathyroid glands?
calcium homeostasis
How many parathyroid glands are there?
four
2 main sources of thyroid blood supply
superior thyroid artery
inferior thyroid artery
What is the superior thyroid artery a branch of?
external carotid artery
What is the inferior thyroid artery a branch of?
thyrocervical trunk
from the subclavian artery
Venous drainage of the thyroid occurs through..
superior
middle
inferior thyroid veins
Which veins drain to the internal jugular vein?
superior
middle thyroid vein
Which vein drains to the brachiocephalic vein
inferior thyroid vein
What innervates the thyroid?
sympathetic fibres
from superior, middle and inferior cervical ganglia
What travels behind the thyroid to supply laryngeal muscles?
recurrent laryngeal nerve
Perithyroid Pre-laryngeal Pre-tracheal Paratracheal Superior and inferior deep cervical
Lymph nodes draining the thyroid