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Neuroplasticity - University of Michigan–Flint
Neuroplasticity - University of Michigan–Flint

... brain area due to loss of input from an anatomically connected area that is injured • Neural shock due to diaschisis, such as spinal cord shock (lasting 4-6 weeks postinjury), cerebral shock, is a short-term loss of function near and far from lesion site. Full recovery from neural shock is often exp ...
PSYB1 Revision sheet Biopsychology JM09
PSYB1 Revision sheet Biopsychology JM09

... the function of a sensory neuron is to carry information from the sense organs to the central nervous system. Synaptic Transmission ...
Cellular Neuroanatomy II
Cellular Neuroanatomy II

... covered with thousands of synapses (stained red at right). Dendritic trees have a large variety of shapes and sizes to enhance this functionality. In addition, the dendritic membrane has many specialized protein molecules called receptors that detect the chemicals released at the synapse. cell bodie ...
Nervous System WS (handed out after section exam)
Nervous System WS (handed out after section exam)

... f. What part of the neuron is usually wrapped in myelin sheath?  The myelin sheath is responsible for saltatory conduction / transmission. This is where the electrical impulses jump from one node of Ranvier to the next node. This increases the speed of the nerve impulse.  The speed increases becau ...
Wang_Samuel_7_part1-learning-rules
Wang_Samuel_7_part1-learning-rules

... takes place in one or both cells such that A’s efficiency, as one of the cells firing B, is increased.” ...
Chapter 02
Chapter 02

... Cell Body: Life support center of the neuron. Dendrites: Branching extensions at the cell body. Receive messages from other neurons. Axon: Long single extension of a neuron, covered with myelin [MY-uh-lin] sheath to insulate and speed up messages through neurons. Terminal Branches of axon: Branched ...
Chapter 2 PowerPoint Notes
Chapter 2 PowerPoint Notes

... called the _____________________________________________. ________________________(chemicals) released from the sending neuron _________________________________and bind to receptor sites on the receiving neuron, thereby influencing it to generate an action potential. ...
Biological Processes Neurons
Biological Processes Neurons

... Alzheimer’s disease may be linked to abnormally low levels of acetylcholine ...
Rexed`s Lamina
Rexed`s Lamina

... Rexed’s Lamina •Some important nuclei •Substantia gelatinosa (II) •Nucleus proprius (IV) •Dorsal nucleus of Clark •Intermediolateral cell column •Motor neuron pools ...
Introduction to the Pharmacology of CNS Drugs: Introduction Drugs
Introduction to the Pharmacology of CNS Drugs: Introduction Drugs

... region and thus require the spillover of GABA from the synaptic cleft. GABAB receptors are also present on the axon terminals of many excitatory and inhibitory synapses. In this case, GABA spills over onto these ...
CHAPTER 10: NERVOUS SYSTEM I
CHAPTER 10: NERVOUS SYSTEM I

... Summation = many subthreshold stimuli received one after another may allow threshold potential to be reached, and trigger an AP, which in turn begins an impulse on a neuron. a. +15 mV = threshold = AP = impulse b. +5, +5, +5, = +15 mV = threshold = AP = impulse. ...


... The long term goal of this project is to identify factors that regulate secretion of neuropeptides generally, and to determine how these peptides regulate behavior. The motivation for this project is two-fold. First, insulin secretion, and its misregulation, plays a pivotal role in aging, diabetes, ...
Name:
Name:

... 6. When a small stimulus is applied to the cell membrane, what channels open and what diffuses in which direction? ...
Chapter 17
Chapter 17

... - the small gap between cells at a synapse is called the synaptic cleft; the presynaptic neuron releases neurotransmitters into the synaptic cleft which act on the postsynaptic cell - there are numerous neurotransmitters including acetylcholine (ACh), glutamate, aspartate, glycine, norepinephrine (N ...
Print this Page Presentation Abstract Program#/Poster#: 532.07/GG10
Print this Page Presentation Abstract Program#/Poster#: 532.07/GG10

... which the output is modulated by the summed local activity. In these models, the region of the sensory space that is pooled to produce suppression to a neuron is larger than that for summation. The neural implementation of normalization in the visual cortex is thought to involve inhibitory neurons t ...
6.5 Nervous system part1
6.5 Nervous system part1

... The Nerve Impulse 5. Then the gates in the potassium channels CLOSE, and the resting potential is re-established by sodium/ potassium pumps and facilitated diffusion. This is called repolarize. ...
Human Anatomy & Physiology I
Human Anatomy & Physiology I

... About 100 substances that are either known or suspected neurotransmitters have been identified in the human body. Many neurotransmitters are amino acids or derivatives thereof. Some neurotransmitter are activating by depolarizing the post synaptic cell; they are excitatory Other neurotransmitter are ...
document
document

... Only one Wild Card may be included in any run (regardless of the number of cards in the run). Once a Wild Card has been used in a run, it may not be moved to another position. If a player has no cards in his or her hand at the end of a turn, he or she draws another card from the pile and waits until ...
Slide 1
Slide 1

... The integrated sum of EPSPs and IPSPs determines if an action potential occurs If threshold stimulus is reached an action potential is triggered. ...
Nervous System
Nervous System

... Serves as a reflex center Has 31 linear segments giving way to 31 spinal nerves (relay info. from PNS to CNS and vice versa) Cauda Equina: collection of spinal nerves at the inferior end of the vertebral ...
1 - Wsfcs
1 - Wsfcs

... only slow down messages when being carried by dendrites. D) shoot down the dendrite, not the axon. E) neither speed up nor slow down as they travel down the axon. ___ 16. On the new spin-off series, Bio Jeopardy, the host gives the clue “A greater number of negative signals in a neuron's dendrites o ...
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... 2. The NMDA receptors now respond actively to glutamate and admit large amount of Ca2+ through their channels 3. After induction of LTP, transmission at non-NMDA receptors is facilitated (entry of Na+) ...
4.27.05 Respiration and Nervous
4.27.05 Respiration and Nervous

... cavity causes air to leave the lungs. • External respiration occurs in the lungs where oxygen diffuses into the blood and carbon dioxide diffuses out of the blood. • Internal respiration occurs in the tissues where oxygen diffuses out of the blood into tissue cells and carbon dioxide diffuses into t ...
The vertebrate nervous system is regionally specialized
The vertebrate nervous system is regionally specialized

... Neurons communicate with other cells at synapses – summary In an electrical synapse, electrical current flows directly from one cell to another via a gap junction. In a chemical synapse, depolarization of the synaptic terminal causes synaptic vesicles to fuse with the terminal membrane and to relea ...
The Nervous System
The Nervous System

... • When the action potential moves on, the section goes through a refractory period, in which Na+ gates are unable to open. This causes the action potential to only move in one direction. ...
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Neurotransmitter

Neurotransmitters are endogenous chemicals that enable neurotransmission. They transmit signals across a chemical synapse, such as in a neuromuscular junction, from one neuron (nerve cell) to another ""target"" neuron, muscle cell, or gland cell. Neurotransmitters are released from synaptic vesicles in synapses into the synaptic cleft, where they are received by receptors on other synapses. Many neurotransmitters are synthesized from simple and plentiful precursors such as amino acids, which are readily available from the diet and only require a small number of biosynthetic steps to convert them. Neurotransmitters play a major role in shaping everyday life and functions. Their exact numbers are unknown but more than 100 chemical messengers have been identified.
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