Thyroid & Parathyroid Flashcards
Thyroid Gland
• maintenance of body metabolism
• controlled secretion
• largest ENDOCRINE gland to control BASAL METABOLIC RATE
• anterior neck & throat
Parathyroid gland
• 4 small endocrine glands
• posterior-medial aspect thyroid
• secrete ParaThyroid Hormone (PTH)
- regulates calcium & phosphorus metabolism
Thyroid gland anatomy
• bound by a FIBROUS CAPSULE
• 2 lobes ( right larger)
• anteriorly to trachea wall
• connected by ISTHMUS
Normal variant
Abnormality born with
Pyramidal lobe
• extra lobe
• extends SUPERIORLY from isthmus
• anterior to CIRCOID cartilage
Vessel landmarks
• internal Jugular Vein (lateral)
• common carotid artery (medial)
- forms posterior lateral border of thyroid gland
How to tell CCA and IJV
CCA circular / PULSATILE
IJV more oval / respiratory vibrations