At a Busy Intersection, a Police Officer Directs Traffic

question 49

Multiple Choice

At a busy intersection, a police officer directs traffic. The movement of the cars is controlled by the police officer, who is responsible for communicating to drivers how to proceed. The role of the police officer is MOST similar to the role of _____ in brain functioning.

• A) neurotransmitters
• B) neurons
• C) glands
• D) the endocrine system

---

Definitions:

Surgical Asepsis

Techniques used to maintain sterility and prevent contamination during surgical procedures.

Serrations

The notched or tooth-like projections found on the edge of a blade or tool, which enhance cutting efficiency.

Sterile Gown

A clean, germ-free garment worn by medical staff to prevent contamination during procedures.

Surgery

A medical procedure involving an incision with instruments, performed to repair damage, remove diseased tissue, or improve bodily function.