About How Many People Die Each Year in the U

question 208

Multiple Choice

About how many people die each year in the U.S. as a result of smoking?

• A) a quarter-million
• B) half a million
• C) one million
• D) two million

---

Definitions:

Ethmoid

A spongy bone located at the base of the nasal cavity that separates the nose from the brain.

Mastoid Process

A bony projection located behind the ear on the skull, part of the temporal bone, involved in muscle attachment and containing air cells linked to the middle ear.

Mastoid Air Cells

Spaces within the mastoid process of the temporal bone connected to the middle ear by ducts.

Zygomatic Arch

The zygomatic arch, composed of the zygoma (cheekbone) and the temporal bone, forms the prominence of the cheek and the outer side of the eye socket.