the bulb on the end of an axon
Interneurons
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.
Neurotransmitters are released from the presynaptic neuron into the synaptic cleft, where they diffuse across to bind to receptors on the postsynaptic neuron. This binding initiates a series of events that can either excite or inhibit the postsynaptic neuron, leading to the transmission of signals in the nervous system.
dorsal root ganglion
A neuron typically has 22 pairs of autosomes in humans, for a total of 44 autosomes. Autosomes are chromosomes that are not involved in determining an individual's sex.
Interneurons
sensory, interneuron, motor nueron
Grey matter is closely packed nueron cell bodies. It helps with sensory perceptions (seeing, hearing, emotions,memory, speech) and muscle control .
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.
Neurotransmitters are released from the presynaptic neuron into the synaptic cleft, where they diffuse across to bind to receptors on the postsynaptic neuron. This binding initiates a series of events that can either excite or inhibit the postsynaptic neuron, leading to the transmission of signals in the nervous system.
its the red blood cell
neurons are just the cells that make up the nervous tissue.
Myelinated neurons conduct impulses faster than unmyelinated neurons.
dorsal root ganglion
it's a hormone when it is produced by the adrenal gland and a nuerotransmitter when it is secreted by a nueron.
A schwann cell are supporting cells of the peripheral nervous system, they wrap themselves around nerve axons.
The three main parts of a nueron are: the dendrites, the axon, and the cell body.