Discuss the structure and function of the human... - SS3 Biology Nervous System In Man Question

The human nervous system is a complex network of cells, tissues, and organs that coordinates and controls various bodily functions. It is divided into two main parts: the central nervous system (CNS) and the peripheral nervous system (PNS). The CNS consists of the brain and spinal cord, while the PNS includes all the nerves that connect the CNS to the rest of the body. The brain is the central control centre of the nervous system, responsible for processing sensory information, initiating motor responses, and performing higher cognitive functions. The spinal cord serves as a relay system, transmitting signals between the brain and the peripheral nerves. The PNS, on the other hand, carries information to and from the CNS, enabling communication with the body's organs, muscles, and glands. The nervous system communicates through specialized cells called neurons, which transmit electrical signals, or nerve impulses, across synapses. Neurotransmitters facilitate the transmission of signals between neurons. This communication network allows for the regulation of bodily processes, perception of sensory stimuli, and execution of voluntary movements, among other functions.