International Sports Sciences Association (ISSA) Trainer Practice Exam

Which components make up the nervous system?

1. Peripheral nervous system only

2. Central nervous system only

3. Cerebral cortex and spinal cord

4. Peripheral nervous system and central nervous system

The correct answer is: Peripheral nervous system and central nervous system

The nervous system is a complex network responsible for transmitting signals between different parts of the body and coordinating responses to internal and external stimuli. It is divided into two main components: the central nervous system and the peripheral nervous system. The central nervous system comprises the brain and spinal cord, which are crucial for processing information and directing actions. The peripheral nervous system includes all the nerves that branch out from the spinal cord and extend to various parts of the body, facilitating communication between the central nervous system and limbs or organs. By recognizing that both the central and peripheral nervous systems work together to create a comprehensive system for coordinating bodily functions, it's evident that the choice reflecting both components is the most accurate representation of the nervous system as a whole. Understanding this allows for a clearer insight into the functions of various parts of the nervous system and their interconnectivity.