Document
... – K+ flows outward (potassium current) • Myelin and Nodes of Ranvier speed the conduction • Pharmacology of voltage sensitive channels – Site of action of neurotoxic drugs (snake venom, scorpion ...
... – K+ flows outward (potassium current) • Myelin and Nodes of Ranvier speed the conduction • Pharmacology of voltage sensitive channels – Site of action of neurotoxic drugs (snake venom, scorpion ...
Quiz
... 13. In one cycle of neural communication, which is the correct order of events? a. Neurotransmitter release -‐> action potential -‐> threshold of excitation reached -‐> inhibitory or excitatory post-‐synaptic ...
... 13. In one cycle of neural communication, which is the correct order of events? a. Neurotransmitter release -‐> action potential -‐> threshold of excitation reached -‐> inhibitory or excitatory post-‐synaptic ...
Neural Pathways and Transmission
... This means that charged particles, called ions, line the membrane of the neuron, causing a difference in charge across the membrane Potassium and sodium ions line the membrane in unequal distribution to cause a positive exterior and a negatively charged interior Potassium (K+) is concentrated on the ...
... This means that charged particles, called ions, line the membrane of the neuron, causing a difference in charge across the membrane Potassium and sodium ions line the membrane in unequal distribution to cause a positive exterior and a negatively charged interior Potassium (K+) is concentrated on the ...
THE NERVOUS SYSTEM: Communication
... 2. Integrative Function – information is “brought together,” interpreted, to create sensations, create thoughts, add to memory, make decisions, etc. Association neuron or interneuron 3. Motor Function – responses to signals (impulses). Signals sent from the CNS to effectors (muscles or glands). The ...
... 2. Integrative Function – information is “brought together,” interpreted, to create sensations, create thoughts, add to memory, make decisions, etc. Association neuron or interneuron 3. Motor Function – responses to signals (impulses). Signals sent from the CNS to effectors (muscles or glands). The ...
Biological Basis of behavior
... Synapse: the place where an axon of one neuron meets with the dendrite/cell body of another neuron. When a neural impulse reaches an axon’s terminal buttons, it triggers the release of chemical messengers called neurotransmitters. The neurotransmitter molecules diffuse across the synaptic cleft and ...
... Synapse: the place where an axon of one neuron meets with the dendrite/cell body of another neuron. When a neural impulse reaches an axon’s terminal buttons, it triggers the release of chemical messengers called neurotransmitters. The neurotransmitter molecules diffuse across the synaptic cleft and ...
Action Potential
... specific conditions…” -serve a very specific function, maintaining the membrane at rest. ...
... specific conditions…” -serve a very specific function, maintaining the membrane at rest. ...
Nervous System The nervous system is divided into two parts: 1
... 2. oligodendrocytes - are responsible for formation of myelin in the CNS. 3. microglia - are phagocytic cells of the CNS. 4. astrocytes - help form part of the blood-brain barrier. 5. ependyma - cells that line the ventricles and the central canal of the spinal cord. 6. satellite cells - provide str ...
... 2. oligodendrocytes - are responsible for formation of myelin in the CNS. 3. microglia - are phagocytic cells of the CNS. 4. astrocytes - help form part of the blood-brain barrier. 5. ependyma - cells that line the ventricles and the central canal of the spinal cord. 6. satellite cells - provide str ...
Cell Structure: From an Information Processing View
... The signal strength must be greater than the resistance at the axon hillock The threshold can shift The soma has a baseline • Baseline indicates all is normal • Indicates cell is alive ...
... The signal strength must be greater than the resistance at the axon hillock The threshold can shift The soma has a baseline • Baseline indicates all is normal • Indicates cell is alive ...
The Zombie Diaries
... What’s the Big Idea?: To understand how information (messages) travel across the brain, and how messages are sent back across the pathways to the rest of the body (neurotransmission). 1.) Choose a partner 2.) Get a Chromebook and a packet from the end of the table 3. ) Review pages 4 - 10 of this Po ...
... What’s the Big Idea?: To understand how information (messages) travel across the brain, and how messages are sent back across the pathways to the rest of the body (neurotransmission). 1.) Choose a partner 2.) Get a Chromebook and a packet from the end of the table 3. ) Review pages 4 - 10 of this Po ...
Bioenergetics - Eastern Michigan University
... – Repolarization • Change in membrane permeability, restoring resting membrane potential ...
... – Repolarization • Change in membrane permeability, restoring resting membrane potential ...
Chapter 13
... • 2-Amino-5-phosphonopentanoate, a drug that blocks NMDA receptors. • These results indicate that the activation of NMDA receptors is necessary for the first step in the process events that establishes LTP: the entry of calcium ions into dendritic spines. ...
... • 2-Amino-5-phosphonopentanoate, a drug that blocks NMDA receptors. • These results indicate that the activation of NMDA receptors is necessary for the first step in the process events that establishes LTP: the entry of calcium ions into dendritic spines. ...
Academic Half-Day Neurophysiology 101
... Voltage signal decreases in amplitude with distance from its site of initiation within a neuron because 1. Small cross-sectional area of the cytoplasmic core of the dendrites offers significant resistance to the longitudinal flow of ions 2. inhibitory inputs at cell body can dampen signal ...
... Voltage signal decreases in amplitude with distance from its site of initiation within a neuron because 1. Small cross-sectional area of the cytoplasmic core of the dendrites offers significant resistance to the longitudinal flow of ions 2. inhibitory inputs at cell body can dampen signal ...
Neural Control II
... chemically-mediated signal may cause cells to lose the ability to respond to it; habituation • When receptor proteins are exposed to high levels of neurotransmitter molecules for prolonged periods, the postsynaptic cell often responds by decreasing the number of receptor proteins in its membrane; ma ...
... chemically-mediated signal may cause cells to lose the ability to respond to it; habituation • When receptor proteins are exposed to high levels of neurotransmitter molecules for prolonged periods, the postsynaptic cell often responds by decreasing the number of receptor proteins in its membrane; ma ...
The Nervous System
... -frontal lobe is important in voluntary motor function, motivation, aggression, mood, and smell reception -parietal lobe receives and evaluates most sensory information -occipital lobe receives and integrates visual input -temporal lobe evaluates smells and sounds and is important in memory Figure 4 ...
... -frontal lobe is important in voluntary motor function, motivation, aggression, mood, and smell reception -parietal lobe receives and evaluates most sensory information -occipital lobe receives and integrates visual input -temporal lobe evaluates smells and sounds and is important in memory Figure 4 ...
Brain Parts Matching Review - District 196 e
... _______ 5. a structure in the limbic system linked to memory. _______ 6. the master endocrine gland. _______ 7. includes the visual areas, which receive visual information from the opposite visual field. _______ 8. a nerve network in the brain stem that plays an important role in controlling arousal ...
... _______ 5. a structure in the limbic system linked to memory. _______ 6. the master endocrine gland. _______ 7. includes the visual areas, which receive visual information from the opposite visual field. _______ 8. a nerve network in the brain stem that plays an important role in controlling arousal ...
File
... Postsynaptic neuron- receives signal How does this happen? The arrival of an action potential at an axon’s terminal triggers the release of NEUROTRANSMITTERS- chemicals that transmit information from one neuron to another Collected together in little sacks called SYNAPTIC VESICLES Vesicles ...
... Postsynaptic neuron- receives signal How does this happen? The arrival of an action potential at an axon’s terminal triggers the release of NEUROTRANSMITTERS- chemicals that transmit information from one neuron to another Collected together in little sacks called SYNAPTIC VESICLES Vesicles ...
K - Cloudfront.net
... – Dissolved minerals found in urine – Sodium and potassium ions used for nerve impulses in the brain – Iron, found in hemoglobin, in the blood cells (this is what makes it red in color) ...
... – Dissolved minerals found in urine – Sodium and potassium ions used for nerve impulses in the brain – Iron, found in hemoglobin, in the blood cells (this is what makes it red in color) ...
Directed Differentiation of Human Induced Pluripotent Stem
... Genetic epilepsy with febrile seizures plus (GEFS+) is an autosomal dominant disorder that can be caused by many different point mutations in the Nav1.1 voltage-gated sodium channel. Our lab has used a Drosophila K1270T knock-in model and discovered a conditional gain-of-function alteration in sodiu ...
... Genetic epilepsy with febrile seizures plus (GEFS+) is an autosomal dominant disorder that can be caused by many different point mutations in the Nav1.1 voltage-gated sodium channel. Our lab has used a Drosophila K1270T knock-in model and discovered a conditional gain-of-function alteration in sodiu ...
Functional Human Physiology for the Exercise and Sport Sciences
... post-synaptic membrane will determine if the net effect is excitatory or inhibitory. If the net effect is more excitatory than inhibitory, an action potential will be generated on the post-synaptic membrane and impulse transduction will occur The opposite is also true, a net inhibitory effect wi ...
... post-synaptic membrane will determine if the net effect is excitatory or inhibitory. If the net effect is more excitatory than inhibitory, an action potential will be generated on the post-synaptic membrane and impulse transduction will occur The opposite is also true, a net inhibitory effect wi ...
Endocrine and nervous system
... • Read the front page of today’s activity • What is the difference between a dendrite and an axon? ...
... • Read the front page of today’s activity • What is the difference between a dendrite and an axon? ...
Lecture-08-2013-Bi
... A. Inhibitory synapses on dendrites do a good job of inhibiting EPSPs on nearby spines B. Inhibitory synapses on cell bodies and initial segments ...
... A. Inhibitory synapses on dendrites do a good job of inhibiting EPSPs on nearby spines B. Inhibitory synapses on cell bodies and initial segments ...
Brain Plasticity-
... FACT 1: Neuroplasticity includes several different processes that take place throughout a lifetime. Neuroplasticity does not consist of a single type of morphological change, but rather includes several different processes that occur throughout an individual’s lifetime. Many types of brain cells are ...
... FACT 1: Neuroplasticity includes several different processes that take place throughout a lifetime. Neuroplasticity does not consist of a single type of morphological change, but rather includes several different processes that occur throughout an individual’s lifetime. Many types of brain cells are ...
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.