Thyroid Flashcards Preview

Surgery > Thyroid > Flashcards

Flashcards in Thyroid Deck (16):
1

Define the arterial blood supply to the thyroid

  • superior thyroid artery (first branch of the external carotid)
  • Inferior thyroid artery (branch of the thyrocervical trunk) 

2

Define the venous drainage of the thyroid 

  • superior thyroid vein 
  • middle thyroid vein 
  • inferior thyroid vein 

3

What is the thyroid lobe appendage coursing towards the hyoid bone from around the thyroid isthmus

Pyramidal - 50% of people have

4

What veins do you first see after opening the platysma muscle when performing a thyroidectomy 

anterior jugular veins

5

Name the lymph node group around the pyramidal lobe of the thyroid lobe

Delphian lymph node group 

6

which ligament connects the thyroid to the trachea 

Ligament of berry

7

What is the IMA artery?

Small inerior artery to the thyroid from the aorta or innominate artery 

8

name the most posterior extension of the lateral thyroid lobes? 

tubercle of zuckerkandl

9

Which paired nerves must be carefully identified during a thyroidectomy 

recurrent laryngeal nerves 

found in the tracheooesophageal grooves and dive behind the cricothyroid muscle; dsmage to these nerves parylses laryngeal abductors and causes hoarseness if unilateral and airway obstruction if bilateral 

10

Which other nerve is at risk during a thyroidectomy and what are the symptoms?

Superior laryngeal nerves - if damaged the patient will have a deeper and quieter voice 

11

Explain thyroid hormone synthesis 

A image thumb
12

Causes of a lump

  • goitre 
    • physiological 
    • non-toxic 
    • thyrotoxic 
  • adenoma - functioning/ non functioning 
  • cyst
  • thyroiditis: Hashimotos, de Quervains 
  • Carcinoma 

13

Types of goitre 

  • diffuse goitre 
  • multinodular goitre 
  • solitaryn thyroid nodule 

14

Diffuse goitre 

  • non-toxic 
  • diffusely involves the whole gland 
  • not associated with hypo or hyperthyroidism 

15

Diffuse goitre causes 

  • Physiological 
  • dietary iodine deficiency 

 

16