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Vesicle-Mediated Transport and Release of
Vesicle-Mediated Transport and Release of

... Whenever neurons in the CNS are injured, microglia become activated. In addition to local activation, microglia remote from the primary lesion site are stimulated. Because this so-called secondary activation of microglia is instrumental for long-term changes after neuronal injury, it is important to ...
Axons break in animals lacking β-spectrin
Axons break in animals lacking β-spectrin

... further increased to 60% (P < 0.0001 compared with hatching in a two-tailed Fisher’s exact test). The defects that accumulated in β-spectrin mutants were of several types, none of which were ever observed in wildtype animals (Fig. 2 B). First, we observed broken axon commissures that were detached f ...
this worksheet - (canvas.brown.edu).
this worksheet - (canvas.brown.edu).

Identification of Mechanoafferent Neurons in Terrestrial Snail
Identification of Mechanoafferent Neurons in Terrestrial Snail

... details (Balaban 1979, 1983; Balaban et al. 1987; Zakharov and Balaban 1987). However, almost nothing is known about the sensory neuronal elements recruited in avoidance reactions and sensory inputs to the withdrawal interneurons involved in triggering the withdrawal responses (Balaban 1979). Severa ...
File
File

... 51. Explain the difference between the ion channels. Active channels have gates that can open or close the channel, while passive channels are always open and ions pass through them ...
Chapter 9—Sensory Systems. I. Sensory receptors receive stimuli
Chapter 9—Sensory Systems. I. Sensory receptors receive stimuli

... ii. In rods, the visual pigment is rhodopsin. 1. Rhodopsin consists of a protein (opsin) to which the pigment retinal is bound. (Retinal is synthesized from vitamin A). iii. Cones contain the same retinal pigment as rods, but it is attached to other forms of opsin, which respond to blue, green, or r ...
BioH Nervous System PPT 2013
BioH Nervous System PPT 2013

... Dendrites – short, branched extensions that receive impulses from the environment or other neurons toward the cell body Cell Body – the largest part of a neuron, containing most of the cytoplasm and the nucleus Axon – the long extension that carries an impulse away from the cell body Myelin (myelin ...
Characterization of the apoptotic functions of the HID homolog
Characterization of the apoptotic functions of the HID homolog

... conservation is sufficient for the cell killing activity. To test this, we ectopically expressed scHID in the specific peptidergic neurons of D. melanogaster using a gal4/UAS transgenic expression system, as described in the Methods. In Figures 8A, 8B, 8C, 8D, and 8E the wild type cross represents t ...
Glossary - ACT on Alzheimer`s
Glossary - ACT on Alzheimer`s

... Moderate Alzheimer’s disease – stage of the disease that includes symptoms such as memory loss, confusion, problems recognizing friends and family, impulse control, and difficultly completing tasks that have several steps like cooking or dressing. Mutation – a permanent change in the DNA of a cell t ...
Case Study: John Woodbury - Harvard Life Science Outreach Program
Case Study: John Woodbury - Harvard Life Science Outreach Program

... The strength of a stimulus, the duration of a stimulus, the health of the myelin sheath, etc 11. What is a synapse? What events happen at a synapse? A synapse is the space between a nerve cell and it’s target cell (which could be another nerve cell or a muscle cell). At the synapse, the action poten ...
Getting to Know: Nervous
Getting to Know: Nervous

... include sensory, interneuron, and motor neurons. ...
PDF - Molecules and Cells
PDF - Molecules and Cells

... channel (Johns and Marx, 1999) that suppresses neural depolarization (Fig. 3B). Indeed, although mated females with silenced CG3542-LexA and ppk-GAL4 double-positive (henceforth, CG3542-ppk) neurons lay more eggs than controls (Fig. 3C), their virgin counterparts do not. The egg-laying phenotype in ...
PowerLecture: Chapter 13
PowerLecture: Chapter 13

... array of proteins, ions, and other molecules in a neuron, both at rest and as a neuron experiences a change in potential. Understand how a nerve impulse is received by a neuron, conducted along a neuron, and transmitted across a synapse to a neighboring neuron, muscle, or gland. ...
chapt10_holes_lecture_animation
chapt10_holes_lecture_animation

...  Identify the two major groups of nervous system organs. 10.2: General Functions of the Nervous System  List the functions of sensory receptors.  Describe how the nervous system responds to stimuli. 10.3: Description of Cells of the Nervous System  Describe the three major parts of a neuron.  D ...
autonomic nervous system
autonomic nervous system

... spinal cord through ventral root Enter the ganglion via the white ramus Synapse with postganglionic Leave via gray ramus Terminates on visceral effectors ...
Nervous - Anoka-Hennepin School District
Nervous - Anoka-Hennepin School District

... Gray matterTissue that contains the cell bodies, and dendrites. White matter- bundles of axons with myelin sheaths. White matter in the brain and spinal cord are called nerve ...
lecture9
lecture9

... object on the right he would reach with his left hand. He could accomplish normal tasks like eating and dressing himself. His body image became almost normal and when he moved his eyes and head the world did not move around so much. He began to feel as though his left hand was on the right, and his ...
Aldwin de Guzman Abstract - UF Center for Undergraduate Research
Aldwin de Guzman Abstract - UF Center for Undergraduate Research

... The NSCISC estimates 12,000 spinal cord injuries annually in the United States. A majority occur at the cervical level with many resulting in respiratory impairment due to interference with brainstem generated ventilatory drive reaching spinal motor targets. The resulting respiratory insufficiency o ...
I. Nervous System
I. Nervous System

... The nervous system can be characterized according to the functional and anatomical principles. According to the functional principle the nervous system (NS) consists of: 1. the somatic nervous system which is responsible for coordinating voluntary body movements (i.e. activities that are under consc ...
by David Zimmerman The ultimate in nerve regeneration
by David Zimmerman The ultimate in nerve regeneration

Moving Colors in the Lime Light Minireview
Moving Colors in the Lime Light Minireview

Neuroscience in PT: Introduction and Review
Neuroscience in PT: Introduction and Review

... • By what mechanism could the injection of Botox reduce involuntary muscle activity? • At the neuromuscular junction, ACh acts via a ligand-gated receptor. Is the action of ACh on the nicotinic, ligand-gated receptor the same as its action on the muscarinic, Gprotein-mediated receptor? The effect o ...
Conference Outline 1
Conference Outline 1

... The central sulcus forms the boundary between the frontal and parietal lobes. An imaginary line traced between the parietooccipital sulcus and the preoccipital notch delineates the occipital lobe, and an imaginary extension of the Sylvian fissure towards the previously defined imaginary line separat ...
Integrator or coincidence detector? The role of the cortical neuron
Integrator or coincidence detector? The role of the cortical neuron

... threshold (broken line at value I .O; arbitrary voltage scale), an action potential is triggered and the membrane potenevents over extended intervals. Yet tial undergoes reset. The majority (7546, red) of a// PSPs contribute to a subsequent action potential. The remaining a crucial difference betwee ...
Group 2 Jaymie, Kambria, Vita, Jordynn
Group 2 Jaymie, Kambria, Vita, Jordynn

... Nervous system main function is to coordinate all of the body’s activities, so when something goes wrong inside or outside the body, the system allows it to recognize and respond as needed. ...
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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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