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A motor neuron (or motoneuron or efferent neuron [1]) is a neuron whose cell body is located in the motor cortex, brainstem or the spinal cord, and whose axon (fiber) projects to the spinal cord or outside of the spinal cord to directly or indirectly control effector organs, mainly muscles and glands. [2]
In biology, a motor unit is made up of a motor neuron and all of the skeletal muscle fibers innervated by the neuron's axon terminals, including the neuromuscular junctions between the neuron and the fibres. [1] Groups of motor units often work together as a motor pool to coordinate the contractions of a single muscle.
This image is a derivative work of the following images: ... A neuron cell diagram, ... Add a one-line explanation of what this file represents.
The actual image is great, and I love both public domain and SVG. Zakolantern 22:51, 13 July 2007 (UTC) Can someone please teach me (my talk page or here) how to link to an image page without the image appearing? (I want the link I used to go to Image:Eye-diagram_no_circles_border.svg, without the image appearing. I failed. Thank you.
The two main types of cells in the brain are neurons, also known as nerve cells, and glial cells, also known as neuroglia. [1] There are many types of neuron, and several types of glial cell. Neurons are the excitable cells of the brain that function by communicating with other neurons and interneurons (via synapses ), in neural circuits and ...
All muscles consist of a number of motor units and the fibers belonging to a motor unit are dispersed and intermingle amongst fibers of other units. The muscle fibers belonging to one motor unit can be spread throughout part, or most of the entire muscle, depending on the number of fibers and size of the muscle. [2] [3] When a motor neuron is ...
One illustrative example is the Purkinje cell protein 4 in knockout mice, which exhibit impaired locomotor learning and markedly altered synaptic plasticity in Purkinje neurons. [ 11 ] [ 12 ] PCP4 accelerates both the association and dissociation of calcium (Ca 2+ ) with calmodulin (CaM) in the cytoplasm of Purkinje cells, and its absence ...