5.5 (Endocrine glands, Subclavian/Carotid flow)

Question 1

Location of Thyroid

Answer 1

Deep to the infrahyoid muscles and anterolateral to the trachea.

Question 2

Connection between right and left lobe.

Answer 2

Isthmus.

Question 3

Surface projections of thyroid.

Answer 3

Level of the C5-T1 and has parathyroid glands on the posterior side.

Question 4

Layer of fascia surrounding thyroid

Answer 4

Visceral layer of pre-tracheal fascia

Question 5

Thyroid receives blood from which arteries and what are the sources?

Answer 5

Superior thyroid artery from the external carotids and inferior thyroid artery from subclavian artery.

Question 6

Right subclavian artery sources from…

Answer 6

Brachiocephalic trunk

Question 7

Left subclavian artery sources from…

Answer 7

Aorta

Question 8

Major branches of subclavian artery

Answer 8

1. Vertebral
2. Internal thoracic
3. Thyrocervical

Question 9

Branches of thyrocervical trunk

Answer 9

1. Inferior thyroid artery
2. Ascending cervical artery
3. Transverse cervical artery
4. Suprascapular artery

Question 10

Ascending cervical artery supplies…

Answer 10

Anterolateral portion of the neck.

Question 11

Transverse cervical artery supplies..

Answer 11

Gives rise to the dorsal scapular artery, supplying the latissimus dorsi.

Question 12

Suprascapular artery supplies…

Answer 12

Scapula and muscles around it.

Question 13

Location of common carotid in neck

Answer 13

Anterior triangle, in the carotid sheath, lateral to the trachea

Question 14

Branches of external carotid in neck

Answer 14

1. Superior thyroid
2. Ascending pharyngeal
3. Lingual artery
4. Facial artery