a. Superior thyroid artery is a branch of the external carotid artery
b. Parathyroid artery is a posterior branch of the superior thyroid artery
c. Inferior thyroid artery is a branch of Thyrocervical trunk
d. Thyroidea ima arteries invariably arise from the aorta
*The thyroidea ima ascends in front of the trachea to the lower part of the thyroid gland, which it supplies.
*It varies greatly in size, and appears to compensate for deficiency or absence of one of the other thyroid vessels. The thyroidea ima artery, when present, arises from the brachiocephalic trunk (innominate artery).
*It occasionally arises from the aorta, the right common carotid, the subclavian or the internal thoracic artery.
57q: ONODI cells and HALLER cells are seen in relation to which of the following respectively?
a. Optic canal and medial roof of maxillary sinus
b. Optic canal and ethmoid sinus
58q: Most common tumor of the eyelid?
a. Squamous cell carcinoma
b. Basal cell carcinoma
c. Lacrimal gland tumor
d. Malignant melanoma
59q: Substance P is present in which of the following in peripheral tissues?
a. Vascular endothelium
b. Mast cells
c. Nerve terminals
60q: Which of the following is not seen in Dermatomyositis?
a. Gottron's papules
b. Periungual telangiectasia
c. Salmon rash
d. Mechanic's hand