The Superior and Inferior Parathyroid Glands Are Supplied by the

question 32

Multiple Choice

The superior and inferior parathyroid glands are supplied by the

• A) superior thyroid artery and vein.
• B) inferior thyroid artery only.
• C) venous plexus only.
• D) separate small branches of the superior and inferior thyroid arteries and by branches from the longitudinal anastomoses between these vessels.

---

Definitions:

Marginal Cost

The increase in total cost that arises from an increase in the production of one additional unit of a good or service.

Profit-Maximizing Seller

A seller who adjusts prices and production levels to achieve the highest possible profit from their goods or services.

Short-Run Marginal Costs

The increase in total cost that arises from producing one additional unit of output when some inputs are considered fixed in the short term.

Market Price

The current price at which a good or service can be bought or sold on the open market, determined by supply and demand forces.