New York State Emergency Medical Technician (EMT) Practice Exam

What two parts make up the central nervous system?

1. Brain and spinal cord

2. Brain and sensory nerves

3. Motor and sensory nerves

4. Spinal cord and sensory nerves

The correct answer is: Brain and spinal cord

The central nervous system (CNS) is composed of the brain and the spinal cord, which together perform complex functions necessary for the processing of information and coordination of bodily activities. The brain serves as the control center for thoughts, memories, and motor functions, while the spinal cord acts as a conduit for signals between the brain and the rest of the body. This connection facilitates reflexes and supports the interaction between various parts of the nervous system. In contrast, sensory nerves, motor nerves, and other components mentioned in the other choices are part of the peripheral nervous system, which is responsible for transmitting information to and from the CNS to the limbs and organs. Hence, the only accurate pairing that describes the central nervous system is the brain and spinal cord.