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the bulb on the end of an axon
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Another name for connecting neurons?
Interneurons
What are the correct sequence of chemical events at a synapse is?
1. The nueron synthasizes chemicals that serve as neurotransmitters. Smaller NT's in axon terminals, larger ones (Peptides) in cell body. Synthasizes chemicals it needs from substances provided by diet. 2. The nueron transports the peptide neurotransmiters to axon terminals. 3. Action potentials travel down the axon. At the presynaptic terminal, an action potential enables calcium to enter cell. Calcium relases neurotransmiters from the terminals into synaptic cleft, which is the space between the presynaptic and post synaptic nuerons. 4. The relased molecules diffuse across the cleft attach to receptors and alter activity of post synaptic neuron. 5. The neurotranmitter molecules separate from their receptors. Depending on the neurotransmitter, it may be converted into inactive chemicals. 6. The NT molecules may be taken back into the presynaptic neuron for recycling or may diffuse away. In some cases, empty vesicles are returned to celll body.
Nueron cell bodies are found in clusters within the posterior root is called?
dorsal root ganglion
Are dendrites made of cytoplasmic extentions?
Yes, dendrites (whether from a nueron or from a dendritic cell) are a portion of the cell membrane that has been shaped as an extension of the cell. Its contents are contiguous with the cell cytoplasm, although not necessarily uniform with them.
Where in the brain is gray matter?
Outside of the brain. Gray in center
Another name for connecting neurons?
Interneurons
Arrange the following neurons into the correct sequence for information flow during the withdrawal reflex following touching a hot burner on a stove?
sensory, interneuron, motor nueron
What is gray matter in brain?
Grey matter is closely packed nueron cell bodies. It helps with sensory perceptions (seeing, hearing, emotions,memory, speech) and muscle control .
What are the correct sequence of chemical events at a synapse is?
1. The nueron synthasizes chemicals that serve as neurotransmitters. Smaller NT's in axon terminals, larger ones (Peptides) in cell body. Synthasizes chemicals it needs from substances provided by diet. 2. The nueron transports the peptide neurotransmiters to axon terminals. 3. Action potentials travel down the axon. At the presynaptic terminal, an action potential enables calcium to enter cell. Calcium relases neurotransmiters from the terminals into synaptic cleft, which is the space between the presynaptic and post synaptic nuerons. 4. The relased molecules diffuse across the cleft attach to receptors and alter activity of post synaptic neuron. 5. The neurotranmitter molecules separate from their receptors. Depending on the neurotransmitter, it may be converted into inactive chemicals. 6. The NT molecules may be taken back into the presynaptic neuron for recycling or may diffuse away. In some cases, empty vesicles are returned to celll body.
Which cell has the same characteristics as the nueron?
its the red blood cell
What are nueron in nervous tissue?
neurons are just the cells that make up the nervous tissue.
What nueron conducts impulses faster?
Myelinated neurons conduct impulses faster than unmyelinated neurons.
Nueron cell bodies are found in clusters within the posterior root is called?
dorsal root ganglion
When is epinephrine considered to be a neurotransmitter and when is it considered to be a hormone?
it's a hormone when it is produced by the adrenal gland and a nuerotransmitter when it is secreted by a nueron.
What is a schwann cell?
A schwann cell are supporting cells of the peripheral nervous system, they wrap themselves around nerve axons.
What are the three parts of a neuron-?
The three main parts of a nueron are: the dendrites, the axon, and the cell body.
What is motor nueron disease?
When nerve damage effects a motor nerve, you have a motor neuron disease. It is also called neuropathy. For information on nerve damage repair go to www.realfoodnutrients.com/neu/home.htm
