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| root like parts of nerve, they grow to make synaptic connections with other neurons |
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| Nucleus and other parts of the cell to sustain life |
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| Wirelike structure ending in the terminal buttons that extends from the cell body. |
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| fatty covering around the axon that speeds neural impulses |
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| The branched end of the axon that contains neurotransmitters |
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| Chemicals in terminal to communicate. Fit into receptor sites of dentrites. |
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| Motor movement, no acetylcholine --> Alzheimer disease |
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| Alterness some motor movement, no dopamine leads to Parkinsons, too much leads to schizophrenia |
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| Pain control, involved in addictions |
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| mood control, lack of it leads to clinical depression |
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| Space between terminal buttons of one neuron and the dendrites of another neuron. |
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| Electric message firing for neurons |
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| neurotransmitters taht excite the next cell into firing |
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| Neurotransmitters that inhibit the next cell from firing |
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| Afferent neurons (Sensory Neurons) |
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| Take information from the senses to the brain |
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| Information, reach to the brain or spinal, inter. Takes message and sends them parts of brain |
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| take information from teh brain to the rest of the body |
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| Consists of brain and spinal cord |
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| Peripheral nervous system |
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consists of all other nerves in body, not encased in bone
Somatic nervous system- controls voluntary muscle movements
Autonomic Nervous System- controls automatic functions of body: heart, lungs, glands, organs
Sympathetic Nervous system- responds to stress
Parasympathetic Nervous system- slow down body after stress response |
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Accidents- the outcome of accident- mood changes, behavior, attitude
Lesions- removal or destruction of the brain, usually done during surgery monitor behavior
Electroencephalogram (EEG)- detect brain waves during sleep
Computerized Axil Tomography (CAT)- shows structure of brain, not functions
Magnetic Resonance Imaging (MRI)- uses magnetic fields to measure location part of brain
Positron Emission Tomography (PET)- shows chemicals part of brain are using
Functional MRI (fMRI)- show blood flow in the brain during cognitive tasks |
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Consists of structure in top part of spinal cord
Medulla- involved in the control of our blood pressure, heart rate, and breathing above spinal
Pons- located above the medulla, involved in the control of facial expressions
Cerebellum- "little" brain, coordinates fine muscle movements
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| Between the hindbrain and the forebrain, integrates sensory information and muslce movements |
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Processes thought, reason, cognitive
Thalamus- top of brain stem, reciving sensory signals and send them to areas in forebrain
Hypothalamus- next to thalamus, control metabolic functions: temperature, hunger, thirst
Amygdala and Hippocampus surrounding thalamus, both process and perceive memory and emotion. Memory is not permanently stored, but must pass this to be permanent |
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Layer of the top of brain "wrinkly", full of neurons. As we develop and learn, the dendrites of the neurons in the cortex grow and connect with other neurons.
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