Detects environmental information both inside and outside the body, then to the CNS for recognition, analysis, and decision then to muscles, glands, organs for execution.
Somatic Nervous System
The division of the PNS containing sensory receptors that detect environmental stimuli and moter nerves that activate skeletal muscles.
Autonomic Nervous System
The division of the PNS containing the nerves that regulate the functioning of internal organs.
Central Nervous System
The division of the nervous system that recognizes and analyzes the significance of sensory information, decides how to respond to that infomation and sends the message to execute that response to the PNS.
A division of the CNS located within the vertebrate spinal column which receives sensory messages from the body below the head and sends motor commands to the PNS. Sensory messages are sent to the brain and most motor commands originate in the brain.
The divison of the CNS within the vertebrate skull which interprets sensory messages and determines the appropriate behavioral response.
The front end
The back end
Toward the belly
Toward the back
Rostral - Anterior
Toward the head
Caudal - Posterior
Toward the tail
Toward the midline
Away from the midline
Above a structure
Below a structure
Nucleus of a Cell
The part of a cell containgin chromosomes, genes, and DNA.
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