Anatomy of the Thyroid, Parathyroid, and Adrenal Glands

Which is of the following statements is most correct about the thyroid gland's isthmus?

• Isthmus overlying 2 - 4 tracheal rings

• Isthmus is between C5 - T1

• Isthmus is below the thyroid cartilage

• It is incomplete in most people

Which of the following muscles is immediately in front of the thyroid gland?

• Sternocleidomastoid

• Sternothyroid

• Sternohyoid

• Omohyoid

Which of the following structures is lateral to the thyroid gland?

• Trachea

• Recurrent laryngeal nerve

• Oesophagus

• Internal jugular vein

Which of the following arteries gives the main arterial supply to the thyroid gland?

• Internal carotid artery

• Subclavian artery

• Superior thyroid artery

• Ima thyroid artery

Which of the following nerves is most likely to be damaged during thyroid surgeries?

• Recurrent laryngeal nerve

• Vagus nerve

• External laryngeal nerve

• Sympathetic trunk

Which of the following statements is correct about the two superior parathyroid glands?

• Situated at the lateral border of the thyroid gland

• Derived from 4th pharyngeal pouch

• Superior to the entry of the superior thyroid artery into the thyroid gland.

• Can be found in the superior mediastinum

Which of the following vessel is anteriorly related to the right suprarenal gland?

• Inferior vena cava

• Aorta

• Coeliac trunk

• Superior mesenteric artery

Which of the following parts of the suprarenal gland secrets aldosterone?

• Zona fasciculata

• Zona reticularis

• Zona glomeruloza

• The Medulla

The main blood supply of the parathyroid gland comes from:

• inferior thyroid artery

• external carotid artery

• thyroid ima artery

• thyrocervical trunk

The thyroid gland moves during swallowing because it attaches to the cartilage of the larynx by:

• pretracheal fascia

• the suspensory ligament of Berry

• the sternothyroid muscle

• the laryngeal muscles