Answer
The central nervous system (CNS) receives and processes many kinds of sensory informations; integrates stimuli (neural messages), and gives rise to instructions that stimulate appropriate responses -- contraction of muscles or secretion of glands (400)
Work Step by Step
The CNS is the seat of consciousness ; it is also the source of awareness, memory and thought.
Many kinds of sensory information from inside and outside the body are conveyed to the CNS. Some of these modalities include touch, smell, pressure and pain. These stimuli may trigger reflex responses, or they may be transmitted by neural pathways to CNS neural centers where integration takes pace. Integration entails analyses of, and decisions on appropriate responses to sensory neural messages. The CNS also sends appropriate motor responses to effectors --muscles and/or glands--that result in muscle contraction and/or glandular secretion.
