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The pedunculopontine nucleus (PPN) or pedunculopontine tegmental nucleus (PPT or PPTg) is a collection of neurons located in the upper pons in the brainstem. [ 1 ] [ 2 ] It is involved in voluntary movements, [ 3 ] arousal, and provides sensory feedback to the cerebral cortex and one of the main components of the ascending reticular activating ...
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A neuron, neurone, [1] or nerve cell is an excitable cell that fires electric signals called action potentials across a neural network in the nervous system.They are located in the brain and spinal cord and help to receive and conduct impulses.
Multicolor fluorescence image of a neuron. Neurotubules are stained in green and mitochondria are stained in red. Structure of a neurotubule. Neurotubules are microtubules found in neurons in nervous tissues. [1] Along with neurofilaments and microfilaments, they form the cytoskeleton of neurons.
The soma of a neuron (i.e., the main part of the neuron in which the dendrites branch off of) contains many organelles, including granules called Nissl granules, which are composed largely of rough endoplasmic reticulum and free polyribosomes. [5] The cell nucleus is a key feature of the soma.
Images (3D, 4D) Various No Neuroelectro.org Electrophysiology of neurons Human, others Neuron Electrophysiological properties and data Healthy No [33] Neuromorpho.org 3D models of real neurons Human, rat, mouse, monkey, others Neuron Images and 3D data Healthy No [34] Neuromorphometrics.com: Manually labeled MRI Brain Scans Human Macroscopic