Neurons are the cells that make up our nervous system, including the brain, spinal cord, and peripheral nerves. Neurons are usually classified as afferent neurons, those that send messages to the brain, and efferent neurons, those receiving messages from the brain. Sensory neurons are always affe...
Epinephrine is classified as an amino acid derived hormone, and is derived from the hydrophilic amino acid tyrosine. B)...Become a member and unlock all Study Answers Start today. Try it now Create an account Ask a question Our experts can answer your tough...
There are also neurotransmitters, such as acetylcholine, that are not predominantly excitatory or inhibitory and so do not fit into either category. Neurotransmitters are molecules that nerve cells, or neurons, use to communicate. When electrically stimulated, the transmitting, or prensynatptic, ...
including the forebrain and thalamus. For this reason, it is classified as a part of the central nervous system. Retinal ganglion cells and the optic nerve do more than transmit information: they actively sort it. Like neurons within
Self-Organizing Maps, also known as Kohonen maps, are a type of neural network-based clustering algorithm. SOMs use a grid of neurons to represent the clusters. The neurons self-organize in such a way that neighboring neurons in the grid respond to similar input patterns. SOMs capture the to...
The various types of cerebral atrophy include those classified as generalized and those classified as focal. Generalized brain atrophy refers to a shrinkage of the entire brain. Physicians see this in aging patients as patients begin to lose neurons and brain cells, resulting in the reduced weight...
Somewhat unusually, neurons do not divide and replicate themselves like other cells of the body do. Those in the brain cannot replace or repair themselves when they are damaged, although the brain can sometimes remap itself to accommodate damage and function normally. Some cells, such as those ...
also calledafferentneurons, also collect information from within the body and convey it to the brain. The nervous system has several types of sensory receptors, grouped by the type of stimulus that activates the sensory receptor, known as adequate stimulus. These receptors also are grouped by loca...
What types of chemicals function as neurotransmitters? What was the first identified a neurotransmitter? What are memory B cells? What do memory B cells do? What causes the release of neurotransmitter into the synaptic cleft? How do neurotransmitters help transmit impulses between neurons?
Neurons and glia are the two types of cells that make up the brain. Each area of the brain has a responsibility for brain function. A brain lesion describes an area of the damaged brain. It may be isolated or there may be numerous areas affected. ...