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Slide ()
Slide ()

... (a) The gray matter contains abundant astrocytes and large neuronal cell bodies, especially those of motor neurons in the ventral horns. (b) The white matter surrounds the gray matter and contains primarily oligodendrocytes and tracts of myelinated axons running along the length of the cord. Center ...
118exam2a-fall2011
118exam2a-fall2011

... 27. Which line on graph A best describes the growth of the brain (by volume) if the X-axis is conception to birth? a. V b. W c. Z d. P * 28. The neural tube, that forms the beginning of the nervous system, closes off & separates from surface cells by the end of the _______ of a pregnancy. a. 1st wee ...
File
File

... ______________________________ movements, such as smiling. 20. Digestion and heart rate are functions controlled by the ______________________________ nervous system. 21. The sympathetic and parasympathetic nervous systems work together for _____________________________________. THE CENTRAL NERVOUS ...
Teacher Guide
Teacher Guide

... cord and peripheral nerves. It also contains neurons that control respiration and regulation of heart rhythms. (Sheep Brain Dissection) cell body - the bulbous part of the neuron, also called the soma, that contains the nucleus. Dendrites and axons are processes off of the cell body. cerebellum - th ...
Cell Types and Physiology in the CANS
Cell Types and Physiology in the CANS

... • Medial SO-- Interaural Time Differences (These are the two primary acoustic cues for localizing sounds) ...
Document
Document

...  it plays an important role in motor control. ...
Document
Document

... Spinal nerves carry impulses to and from the spinal cord Cranial nerves carry impulses to and from the brain PNS links all parts of the body by carrying impulses from the sensory receptors to the CNS and from the CNS to the appropriate muscle or gland ...
Principles of neural ensemble physiology underlying the operation
Principles of neural ensemble physiology underlying the operation

... BMI studies also revealed that a single motor output is often associated with distinct spatiotemporal patterns of neural ensemble firing on the millisecond scale Following the nomenclature introduced by Reeke and Edelman, this principle, which states that identical behavioural outputs can be produce ...
Brain Notes - Cloudfront.net
Brain Notes - Cloudfront.net

... receptors Natural opiates produced in the brain which function as the body’s own natural painkillers and Elevate mood. Endorphins respond to morphine Enkephalins= opiate like neural regulators relieve pain & stress similar to endorphins ...
AI_Connectionism_Excel
AI_Connectionism_Excel

... Summary • The Brain is an Electrical System – Neurons fire in an all-or-none fashion – Neurons may either increase or decrease another neuron’s chances of firing ...
Sensing the Environment
Sensing the Environment

... other neurons, and the effect of the different incoming signals determines what the neuron ...
Huber et al. (2008), Sparse optical microstimulation in barrel cortex
Huber et al. (2008), Sparse optical microstimulation in barrel cortex

... the mouse primary somatosensory cortex. ChR2 photostimulation in vivo reliably generated stimulus-locked action potentials10–13 at frequencies up to 50 Hz. Here we show that naive mice readily learned to detect brief trains of action potentials (five light pulses, 1 ms, 20 Hz). After training, mice ...
8a nerve cells 10a
8a nerve cells 10a

... axons, some have one, some are short, and some are long. AXON TERMINALS (also called boutons or synaptic knobs) contain a neurotransmitter which, when released, stimulates another cell. A SYNAPSE is where one neuron touches another neuron. Neurons may have a couple of synapses, or hundreds. AXOPLASM ...
LIFE OF A LAB FISH - Vanderbilt University
LIFE OF A LAB FISH - Vanderbilt University

... normal embryos and normal neurons in trilobite brains. They found that none of the normal motor neurons migrated when placed in a trilobite brain, whereas a third of the trilobite neurons migrated when placed in normal brains. This led the scientists to conclude that the Strabismus/Van Gogh protein ...
Nervous System = communication conduit b/w brain
Nervous System = communication conduit b/w brain

... neuron, three Na+ are pumped out. This creates unequal distribution of (+) charged ions, resulting in a (+) charge outside neuron and a (-) charge inside neuron. Action Potential = another name for nerve impulse Threshold = minimum stimulus to cause an action potential ...
ACTION POTENTIALS
ACTION POTENTIALS

... impulse: The signal transmitted along a nerve fiber, either in response to a stimulus (such as touch, pain or heat), or as an instruction from the brain (such as causing a muscle to contract). ...
Nervous System
Nervous System

... Excitable cells communicate with each other by action potential (AP) for long distance and by graded potential for short distance. *Production of both types of potentials depend upon the existence of a resting membrane potential (RMP) and the presence of certain types of ion channel. *The RMP is an ...
Answers to Mastering Concepts Questions
Answers to Mastering Concepts Questions

... - cell body: contains the nucleus, mitochondria, and ribosomes. The cell body carries on the normal metabolic cellular functions of the neuron. - axon: a long fiber extending from the cell body. Axons branch at their terminal ends and form junctions with other cells, such as other neurons, muscles, ...
atterning the nervous system through development and evolution: a
atterning the nervous system through development and evolution: a

... character. Further analysis reveals that, by and large, F1 fish are closer to the cave type, suggesting that most cave-specific alleles behave as dominant – an obvious explanation for the fact that they have repeatedly arisen so recently, perhaps less than 10e5 years ago. F2 fish, on the contrary, a ...
Neurons and Functional Neuroanatomy
Neurons and Functional Neuroanatomy

... length of the axon in one direction The action potential moves in one direction because the membrane is refractory (unable to respond) once the action potential has been initiated at any particular place on the membrane ...
초록리스트
초록리스트

... Neuroscience Research Institute and Department of Physiology, Korea University College of Medicine, 126-1 Anam-dong 5 Ga, Sungbuk-Gu, Seoul, 136-705, Korea Gastrin-releasing peptide receptor (GRPR) has been suggested as an itchspecific gene in the spinal cord (Sun et al., Nature, 2009). They describ ...
Part 1: True/False
Part 1: True/False

Chapter 15 Marieb
Chapter 15 Marieb

INS Biology Laboratory
INS Biology Laboratory

... Preparation of Competent Cells and Transformation of Bacteria with Plasmid DNA Introduction and Background: Most recipes for plasmid transformation have developed by trial and error, and are very specific for different species of bacteria. Cells that have been treated to be more suited for transform ...
Ionchannels and channelopaties in the heart
Ionchannels and channelopaties in the heart

... ATP-powered pump 101-103ions/s ...
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Channelrhodopsin



Channelrhodopsins are a subfamily of retinylidene proteins (rhodopsins) that function as light-gated ion channels. They serve as sensory photoreceptors in unicellular green algae, controlling phototaxis: movement in response to light. Expressed in cells of other organisms, they enable light to control electrical excitability, intracellular acidity, calcium influx, and other cellular processes. Channelrhodopsin-1 (ChR1) and Channelrhodopsin-2 (ChR2) from the model organism Chlamydomonas reinhardtii are the first discovered channelrhodopsins. Variants have been cloned from other algal species, and more are expected.
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