Which bone houses the pituitary gland?

• A. Ethmoid bone
• B. Sphenoid bone
• C. Maxilla
• D. Temporal bone

Answer: (B)

The pituitary gland sits in a bony pocket called the sella turcica, which is part of the sphenoid bone. Within this saddle-shaped depression, the floor is the hypophyseal fossa that directly houses the gland. The sphenoid bone lies at the skull base and forms this central enclosure for the pituitary. The other bones mentioned don’t contain this structure: the ethmoid contributes to the nasal cavity and medial walls of the orbits, the maxilla forms the upper jaw and parts of the orbit and palate, and the temporal bone forms the sides and base of the skull with its own distinct structures.