Biological Basis of Behavior
... axon and insulates it which increases conduction speed - Nodes of ranvier -spaces between the myelin sheath where information can become depolarized ( get lost) ...
... axon and insulates it which increases conduction speed - Nodes of ranvier -spaces between the myelin sheath where information can become depolarized ( get lost) ...
Nervous System - North Mac Schools
... • Drugs can release two to 10 times the amount of dopamine that natural rewards do, and they do it more quickly and more reliably • brain responds by producing less dopamine naturally or eliminating ...
... • Drugs can release two to 10 times the amount of dopamine that natural rewards do, and they do it more quickly and more reliably • brain responds by producing less dopamine naturally or eliminating ...
CHAPTER 4 STRUCTURE AND CELL BIOLOGY OF THE NEURON
... The cell body contains the nucleus and other organelles. It is the maintenance center of the neuron. It contains the cell's genetic material as well as the molecular machinery for synthesizing different chemical substances used for information transfer to other neurons, for maintenance and repair of ...
... The cell body contains the nucleus and other organelles. It is the maintenance center of the neuron. It contains the cell's genetic material as well as the molecular machinery for synthesizing different chemical substances used for information transfer to other neurons, for maintenance and repair of ...
Frequently asked questions Psychology 1010.06M A Biologically-Oriented
... • threshold • all-or-none • refractory period ...
... • threshold • all-or-none • refractory period ...
Neurotest 3a Answers MC E 2) A 3) E 4) A 5) B Defs Habituation
... 3) Increases processes (dendrites, basically) and varicosities (synaptic bulbs) 4) Sensory neuron to interneuron to motor neuron diagram; reflexes allow swiftest response (unconscious) to noxious stimuli 5) (see Bowe) 6) Insomnia: inability to go to sleep or stay asleep Narcolepsy: falling asleep at ...
... 3) Increases processes (dendrites, basically) and varicosities (synaptic bulbs) 4) Sensory neuron to interneuron to motor neuron diagram; reflexes allow swiftest response (unconscious) to noxious stimuli 5) (see Bowe) 6) Insomnia: inability to go to sleep or stay asleep Narcolepsy: falling asleep at ...
Chapter 32 The Nervous System, Cells of the Nervous System
... Neurotransmitters send excitatory &/or inhibitory ...
... Neurotransmitters send excitatory &/or inhibitory ...
Chapter 2 Lecture Notes Module 4 – Neural and Hormonal Systems
... ________________ – Each neuron receives excitatory and inhibitory signals from many neurons. When the excitatory signals minus the inhibitory signals exceed a minimum intensity (threshold) the neuron fires an action potential ...
... ________________ – Each neuron receives excitatory and inhibitory signals from many neurons. When the excitatory signals minus the inhibitory signals exceed a minimum intensity (threshold) the neuron fires an action potential ...
Gloster Aaron
... your performance on the exams. The format of the problem sets will be very similar to the format of the exams. You should do every problem set. I will also hand out exams from previous years. ...
... your performance on the exams. The format of the problem sets will be very similar to the format of the exams. You should do every problem set. I will also hand out exams from previous years. ...
ACh - Perkins Science
... potential. Na+ channels are inactive (not just closed). Relative refractory period can be overcome by a strong stimulus. (while K+ diffuses outward). Each action potential remains a separate, all-or-none event. ...
... potential. Na+ channels are inactive (not just closed). Relative refractory period can be overcome by a strong stimulus. (while K+ diffuses outward). Each action potential remains a separate, all-or-none event. ...
Power Point
... The four ventricles of the brain are cavities within the substance of the brain. Lateral ventricles are paired cavities with each right and left cerebral hemisphere. The third ventricle is within the interbrain. The fourth ventricle is continuous with the third through the cerebral aqueduct and is l ...
... The four ventricles of the brain are cavities within the substance of the brain. Lateral ventricles are paired cavities with each right and left cerebral hemisphere. The third ventricle is within the interbrain. The fourth ventricle is continuous with the third through the cerebral aqueduct and is l ...
Neuron_Exercises_HPsychAY10
... will complete the following “stations” and/or projects in whatever order seems best to you: 1. Create a diagram of the structure of the neuron using construction paper and crayons or pencils. 2. Answer the following on a separate piece of paper: a. what are the three major tasks of neurons? b. give ...
... will complete the following “stations” and/or projects in whatever order seems best to you: 1. Create a diagram of the structure of the neuron using construction paper and crayons or pencils. 2. Answer the following on a separate piece of paper: a. what are the three major tasks of neurons? b. give ...
Chap 28 – Nervous System Part 2 – Synaptic Transmission
... end of presynaptic cell triggers increase in intracellular Ca2+, which triggers release of NT ...
... end of presynaptic cell triggers increase in intracellular Ca2+, which triggers release of NT ...
9.2 Electrochemical Impulses
... neurotransmitters from the end plate which will diffuse into the dendrites of an adjacent neuron and create a depolarization of the dendrites. The neuron that releases the neurotransmitters is the ...
... neurotransmitters from the end plate which will diffuse into the dendrites of an adjacent neuron and create a depolarization of the dendrites. The neuron that releases the neurotransmitters is the ...
Mind, Brain & Behavior
... Synaptic vesicles containing neurotransmitter open when there is an action potential. Neurotransmitter may enter the adjacent neuron – unused neurotransmitter is reabsorbed (reuptake). ...
... Synaptic vesicles containing neurotransmitter open when there is an action potential. Neurotransmitter may enter the adjacent neuron – unused neurotransmitter is reabsorbed (reuptake). ...
Chapter 12 The Nervous System
... • Cell Body: Contains a large, centrally located nucleus and a large nucleolus. The cytoplasm contains many mitochondria and lysosomes. It also contains Golgi bodies and rough endoplasmic reticulum. ...
... • Cell Body: Contains a large, centrally located nucleus and a large nucleolus. The cytoplasm contains many mitochondria and lysosomes. It also contains Golgi bodies and rough endoplasmic reticulum. ...
Supporting Cells - Net Start Class
... membrane near the point of stimulation that generates a nerve impulse. ► Originate from the axon hillock ► Is an “all or none” event Magnitude of the voltage change is the same at each ”firing” regardless of stimuli strength. Stronger stimulus increases the frequency of action potentials but NOT ...
... membrane near the point of stimulation that generates a nerve impulse. ► Originate from the axon hillock ► Is an “all or none” event Magnitude of the voltage change is the same at each ”firing” regardless of stimuli strength. Stronger stimulus increases the frequency of action potentials but NOT ...
Nervous System Notes
... nerve pathway that consists of a sensory neuron, an interneuron, and a motor neuron ...
... nerve pathway that consists of a sensory neuron, an interneuron, and a motor neuron ...
Document
... __C__1. The brain and the spinal cord are the a. peripheral nervous system c. central nervous system b. sympathetic nervous system d. parasympathetic nervous system __C__2. What is the basic functional unit of the nervous system? a. cell body b. reflex arc c. neuron d. neutron __A__3. Which of the f ...
... __C__1. The brain and the spinal cord are the a. peripheral nervous system c. central nervous system b. sympathetic nervous system d. parasympathetic nervous system __C__2. What is the basic functional unit of the nervous system? a. cell body b. reflex arc c. neuron d. neutron __A__3. Which of the f ...
Part 1: True/False
... 15. Neuropeptide Y is a peptide neurotransmitter. What can you say about this peptide that is used as a neurotransmitter? A. It is synthesized by enzymes in the axon terminal B. It is packaged in secretory granules <––– C. A proton pump is used to transport this molecule into vesicles in the presyna ...
... 15. Neuropeptide Y is a peptide neurotransmitter. What can you say about this peptide that is used as a neurotransmitter? A. It is synthesized by enzymes in the axon terminal B. It is packaged in secretory granules <––– C. A proton pump is used to transport this molecule into vesicles in the presyna ...
A1985AUW1100002
... These papers are probably cited often for several reasons. First, together with the2studies of Phillips on the pyra’ midal cells ot the neocorten, they were the lirst systematic study ol neurons above the spinal cord. They showed that the electrophysiological techniques that were so uselul in the sp ...
... These papers are probably cited often for several reasons. First, together with the2studies of Phillips on the pyra’ midal cells ot the neocorten, they were the lirst systematic study ol neurons above the spinal cord. They showed that the electrophysiological techniques that were so uselul in the sp ...
Neurons and Neurotransmission - Milton
... “One-third of humanity has perished from the plague. 2.3 billion people have died, and countless more are quickly moving towards the final stages of the disease. There is reason to believe that in a short time, nearly everyone on Earth will be infected. The virus continues to spread exponentially, a ...
... “One-third of humanity has perished from the plague. 2.3 billion people have died, and countless more are quickly moving towards the final stages of the disease. There is reason to believe that in a short time, nearly everyone on Earth will be infected. The virus continues to spread exponentially, a ...
Nonsynaptic plasticity
Nonsynaptic plasticity is a form of neuroplasticity that involves modification of ion channel function in the axon, dendrites, and cell body that results in specific changes in the integration of excitatory postsynaptic potentials (EPSPs) and inhibitory postsynaptic potentials (IPSPs). Nonsynaptic plasticity is a modification of the intrinsic excitability of the neuron. It interacts with synaptic plasticity, but it is considered a separate entity from synaptic plasticity. Intrinsic modification of the electrical properties of neurons plays a role in many aspects of plasticity from homeostatic plasticity to learning and memory itself. Nonsynaptic plasticity affects synaptic integration, subthreshold propagation, spike generation, and other fundamental mechanisms of neurons at the cellular level. These individual neuronal alterations can result in changes in higher brain function, especially learning and memory. However, as an emerging field in neuroscience, much of the knowledge about nonsynaptic plasticity is uncertain and still requires further investigation to better define its role in brain function and behavior.