Sensory receptors: Specialized cells that detect changes inside and outside the body. They serve as the initial sensors for environmental and internal stimuli, providing essential information to the nervous system.
Integration: The process by which the nervous system processes sensory information and determines responses. It involves analyzing incoming data to decide on appropriate actions.
Motor response: Activation of muscles or glands to produce a reaction. It is the output that results from the nervous system’s processing, leading to physical or secretory actions.
Stimulus: Any change in the environment that is detected by sensory receptors. Stimuli can be internal or external and trigger sensory receptors to send information to the nervous system.
1. What is the primary role of the nervous system?
2. In a clinical setting, how can knowledge of the CNS's role in processing sensory and motor information be most effectively applied?
3. Which of the following best describes the organizational sequence of the sensory and motor centers within the spinal cord as described in the source?
Nervous system functions — main roles?
Sensory input, processing, motor output.
Central Nervous System — components?
Brain and spinal cord.
Spinal cord — protected by?
Vertebral column and meninges.
Sensory vs motor pathways — difference?
Sensory carry info to brain; motor carry commands to muscles.
Lemniscal pathway — transmits?
Fine touch and proprioception.
Spinothalamic pathway — transmits?
Pain, temperature, crude touch.
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