Final answer:
The nervous system coordinates bodily functions by transmitting electrical signals, consisting of the central nervous system (CNS) and peripheral nervous system (PNS). It responds to sensory information and maintains various bodily functions. Keeping it healthy is vital for both cognitive abilities and physical activities.
Step-by-step explanation:
Overview of the Nervous System
The nervous system is an intricate network that is responsible for coordinating all of the body's voluntary and involuntary activities. It involves transmitting electrical signals to and from different parts of the body. The central nervous system (CNS), consisting of the brain and the spinal cord, works in conjunction with the peripheral nervous system (PNS) to perform various functions. For instance, it processes sensory information and elicits responses such as muscle movement to maintain balance or avoid danger.
Functioning of the Nervous System
When an individual experiences a potential fall, as in the example of Michelle on her scooter, the nervous system detects the loss of balance and sends messages from the brain to the muscles. Some muscles may tighten while others relax, enabling quick reactions that help regain stability. The nervous system operates in collaboration with the muscular and skeletal system to facilitate these actions.
Maintaining Nervous System Health
Keeping your nervous system healthy is crucial for optimal functioning. The brain is a vital organ within this system, allowing for cognition, emotion, and the coordination of sensory and motor activities. A healthy nervous system is essential for daily activities such as running, jumping, playing sports, and completing homework.
Organization of the Nervous System
The nervous system is organized into the CNS and PNS. It is protected by the skull and layers called meninges - the dura mater, arachnoid mater, and pia mater. This complex system is part of the larger framework of organ systems that work interdependently within the body.