The brain is the primary organ of the central nervous system. It needs and receives 20% of the cardiac output through blood flow from the carotid and vertebral arteries. These arteries are connected at the:

Located throughout the brain stem and cerebrum, a network of nerve fibers known as ________ affects the degree of alertness

A) gray matter B) white matter C) pons D) reticular formation

Which of the following is an example of a dry heat treatment? 

A. Hot soak
B. Hot compress
C. Paraffin bath
D. Hot-water bottle
E. Diathermy