The nervous system
Click here to load reader
Transcript of The nervous system
![Page 1: The nervous system](https://reader038.fdocuments.us/reader038/viewer/2022100600/5562a0c0d8b42abb398b567e/html5/thumbnails/1.jpg)
The nervous system
"What is "real"? How do you define "real"?"
Morpheus
![Page 2: The nervous system](https://reader038.fdocuments.us/reader038/viewer/2022100600/5562a0c0d8b42abb398b567e/html5/thumbnails/2.jpg)
Epistemological views
• Realist: mind independent object.
• Idealist: mind dependent object.
![Page 3: The nervous system](https://reader038.fdocuments.us/reader038/viewer/2022100600/5562a0c0d8b42abb398b567e/html5/thumbnails/3.jpg)
Neuron
• Receive information.
• Integrate information.
• Conduct signal.
• Transmit signal.
![Page 4: The nervous system](https://reader038.fdocuments.us/reader038/viewer/2022100600/5562a0c0d8b42abb398b567e/html5/thumbnails/4.jpg)
Kinds of neurons
• Sensory: respond to stimulus.
• Association: receive signals for many sources.
• Motor: activate muscles or glands.
• Effectors: muscles or glands perform the response.
![Page 5: The nervous system](https://reader038.fdocuments.us/reader038/viewer/2022100600/5562a0c0d8b42abb398b567e/html5/thumbnails/5.jpg)
![Page 6: The nervous system](https://reader038.fdocuments.us/reader038/viewer/2022100600/5562a0c0d8b42abb398b567e/html5/thumbnails/6.jpg)
Neurotransmitter
• Chemical that change the inner negative polarity of the neuron.
• Iniates the nerve impulse.
• Acetycoline, norephinephrine: activates cardiac muscle cells.
![Page 7: The nervous system](https://reader038.fdocuments.us/reader038/viewer/2022100600/5562a0c0d8b42abb398b567e/html5/thumbnails/7.jpg)
![Page 8: The nervous system](https://reader038.fdocuments.us/reader038/viewer/2022100600/5562a0c0d8b42abb398b567e/html5/thumbnails/8.jpg)
Central Nervous System (CNS)
• Receives and processes information.
• Brain.
• Spinal cord.
![Page 9: The nervous system](https://reader038.fdocuments.us/reader038/viewer/2022100600/5562a0c0d8b42abb398b567e/html5/thumbnails/9.jpg)
Brain
• Receives and processes sensory information.
• Initiates responses.• Stores memories.• Generates thoughts and emotions.• Left hemisphere: right, language and
math.• Right hemisphere: left, spatial perception,
music, creativity.
![Page 10: The nervous system](https://reader038.fdocuments.us/reader038/viewer/2022100600/5562a0c0d8b42abb398b567e/html5/thumbnails/10.jpg)
![Page 11: The nervous system](https://reader038.fdocuments.us/reader038/viewer/2022100600/5562a0c0d8b42abb398b567e/html5/thumbnails/11.jpg)
Spinal cord
• Conducts signals to and from the brain.
• Controls reflex activities.
![Page 12: The nervous system](https://reader038.fdocuments.us/reader038/viewer/2022100600/5562a0c0d8b42abb398b567e/html5/thumbnails/12.jpg)
Peripheral Nervous System
• Transmits signals between the CNS and the rest of the body.
• Somatic Nervous System
• Autonomic Nervous System
![Page 13: The nervous system](https://reader038.fdocuments.us/reader038/viewer/2022100600/5562a0c0d8b42abb398b567e/html5/thumbnails/13.jpg)
Somatic Nervous System
• Controls voluntary movements by activating skeletal muscles.
![Page 14: The nervous system](https://reader038.fdocuments.us/reader038/viewer/2022100600/5562a0c0d8b42abb398b567e/html5/thumbnails/14.jpg)
Autonomic Nervous System
• Controls involuntary responses by influencing organs, glands, and smooth tissue.
• Sympathetic division: stressful activity.
• Parasympathetic division: maintanance activities.
![Page 15: The nervous system](https://reader038.fdocuments.us/reader038/viewer/2022100600/5562a0c0d8b42abb398b567e/html5/thumbnails/15.jpg)