The #12 Blade Is Used Almost Exclusively for Which Surgical

question 23

Multiple Choice

The #12 blade is used almost exclusively for which surgical procedure?

• A) arthroscopy
• B) craniotomy
• C) laparotomy
• D) tonsillectomy

---

Definitions:

Gas Exchange

The biological process through which different gases (like oxygen and carbon dioxide) are transferred in opposite directions across an organism's respiratory membranes.

Pulmonary Surfactant

A complex mixture of lipids and proteins secreted by cells in the lungs, reducing surface tension and preventing the collapse of alveoli at the end of expiration.

Alveoli

Tiny air sacs in the lungs where gas exchange between the air and blood takes place.

Cohesive Forces

Attractive forces between similar molecules that hold a substance together, such as the attraction between water molecules.