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Which bodily system assists humans in comprehending and responding to environmental stimuli by transmitting information to the brain?

a) Endocrine system
b) Muscular system
c) Nervous system
d) Skeletal system"

1 Answer

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Answer: The bodily system that assists humans in comprehending and responding to environmental stimuli by transmitting information to the brain is the nervous system. The correct option is c.

Step-by-step explanation:

The nervous system is responsible for detecting and processing sensory information from the environment and transmitting it to the brain for interpretation and response. It consists of the brain, spinal cord, and a network of nerves that extend throughout the body.

1. Sensory receptors: Specialized cells, known as sensory receptors, are located in various parts of the body, such as the skin, eyes, ears, nose, and tongue. These receptors detect different types of stimuli, such as touch, light, sound, smell, and taste.

2. Sensory neurons: When a sensory receptor detects a stimulus, it sends an electrical signal through sensory neurons. These neurons transmit the information from the receptor to the central nervous system, which includes the brain and spinal cord.

3. Central nervous system: The central nervous system processes the incoming sensory information. The brain receives the signals and interprets them, allowing us to comprehend the stimulus. It integrates the information with past experiences and memory to form a response.

4. Motor neurons: Once the brain has processed the sensory information and formulated a response, it sends signals through motor neurons. These neurons carry the response signals from the brain to the muscles or glands that need to take action.

5. Effectors: The muscles and glands that receive signals from motor neurons are known as effectors. Muscles respond to the signals by contracting or relaxing, allowing us to move or react to the stimulus. Glands respond by releasing hormones or other substances to initiate physiological changes.

In summary, the nervous system is responsible for transmitting information from sensory receptors to the brain, where it is processed and interpreted. This enables us to comprehend and respond to environmental stimuli. The endocrine system, muscular system, and skeletal system do play important roles in the body, but they are not primarily responsible for comprehending and responding to environmental stimuli like the nervous system.

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