![]() ![]() ![]() ![]() (See efferent nerve.)Īfferent is derived from from Latin participle afferentem ( af- = ad- : to + ferre : bear, carry), meaning carrying into.Īd and ex give an easy mnemonic device for remembering the relationship between afferent and efferent : afferent connection arrives and an efferent connection exits. Just outside the spinal cord, thousands of afferent neuronal cell bodies are aggregated in a swelling in the dorsal root known as the dorsal root ganglion. The dendrite is structurally and functionally similar to an axon, and is myelinated it is these axon-like dendrites that make up the afferent nerves. They are Apolar, Unipolar, Pseudounipolar, Bipolar and Multipolar neurons. Afferent neurons are pseudounipolar neurons, that have a single long dendrite and a short axon, and a smooth and rounded cell body. Each neuron is made of a cell body, dendrites, and Axon. This process is carried out through the activity of afferent neurons, interneurons, and efferent neurons.Ī touch or painful stimulus, for example, creates a sensation in the brain only after information about the stimulus travels there via afferent nerve pathways. Neurons contain organelles common to many other cells, such as a nucleus and mitochondria. Structural Classification Unipolar Here the cell body is at one end of a single unbranched axon, and there are no dendrites. In the nervous system there is a "closed loop" system of sensation, decision, and reactions. Although the canonical view of the neuron attributes dedicated functions to its various anatomical components, dendrites and axons often act in ways contrary to. Holmes neurons, axon, dendrites - neurofibrils. Don't let static charges disrupt your weighing accuracy Luxol blue (myelin sheath) and nuclear red (nucleus + nucleolus+Nissl body). ![]()
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