Thyroid Gland Flashcards
The thyroid gland is located deep to what group of muscles?
Strap muscles
The thyroid gland has __ lobes
2
The thyroid gland is located anterior to…
2nd and 4th tracheal cartilages
What is the role of the isthmus?
Narrow connecting band joining the right and left thyroid lobes
Outline how the parathyroid gland associates with the thyroid?
Superior and inferior parts located on posterior surface of the thyroid lobes (4 parts in total)
A lump on the thyroid that moves superior to inferior on swallowing is known as a…
Goitre
The pyramidal lobe originates from what area of the thyroid? It is also referred to as?
Left lateral lobe
3rd thyroid lobe
Define ‘ectopic thyroid tissue’
Presence in locations other than normal anterior neck between 2-4 tracheal cartilages
Where does the thyroid gland originate embryologically?
Foramen caecum
The thyroid gland migrates inferiorly during development, and remains attached to the tongue via the ____
Thyroglossal duct
List the locations of thyroid fascia within the neck
PREVERTEBRAL: contains posterior neck muscles and cervical spine
INVESTING: all other neck compartments and 2 pairs of muscles
CAROTID SHEATHS
PRETRACHEAL
What two muscles are contained within the investing fascia?
Trapezius
Sternocleidomastoid
List the structures contained within the carotid sheaths
Vagus nerves
Deep cervical lymph nodes
Common carotid arteries (—> ICAs)
Internal jugular veins
List the structures contained within the pretracheal fascia
Oesophagus Trachea Thyroid gland Strap muscles Recurrent laryngeal nerves
Name the four strap muscles associated with the thyroid gland
Thyrohyoid
Sternohyoid
Sternothyroid
Omohyoid