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main “body” of a neuron
- Responsible for life of the cell; its metabolic center
- Genetic material stored here
- Information (neural impulses) is processed here |
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“tail” of a neuron
- long tube-like structure that carries the neural message to be sent to other neurons |
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| negatively charged state of the neuron when NOT firing a neural impulse |
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| positively charged state during the neural impulse, the electrical message “FIRE!” |
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| during return to (-) resting potential, the neuron cannot fire |
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| inhibition, sleep (inhibitory) |
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a PNS neuron that carries information from the senses to the CNS
Chains of these form the sensory pathways. |
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a PNS neuron that carries messages from the CNS to the muscles of the body
chains of these form the motor pathways. |
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| a CNS neuron located in the center of the spinal cord that receives information from the sensory neurons and sends commands to the motor neurons. |
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all the PNS nerves that carry information:
from the senses to the CNS
from the CNS to the voluntary body muscles |
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| area of left frontal lobe that directs muscle movements involved in speech production |
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| area of left temporal lobe involved in language comprehension and expression |
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Neural structure lying below (hypo) the thalamus
- Regulates how much we feel motivational emotions
- body temperature, fear, sleepiness, hunger, thirst, sexual appetite
- Governs endocrine system via pituitary gland (master endocrine gland). |
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