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HBS Neurons

neurons

QuestionAnswer
Axon Function: it is where electrical impulses from the neuron travel away to be received by other neurons. Location: in the center of the cell between the soma and axon terminals
Dendrite Function: to receive communications from other cells Location: at the beginning of a neuron coming out of the cell body
Schwann Cells Function: maintaining the peripheral nervous system Location: on the axon from the cell body to the axon terminals
Myelin Sheath Function: allows electrical impulses to transmit quickly and efficiently along the nerve cells Location: wrapped around each schwann cell
Neurotransmitters Function: carry chemical signals (“messages”) from one neuron (nerve cell) to the next target cell Location: in the axon terminals
Cell Body Function: contains genetic information, maintains the neuron's structure, and provides energy to drive activities Location: the region containing the nucleus
Axon Terminals Function: to release the neurotransmitters of the presynaptic cell Location: at the end of the axon
Node of Ranvier Function: allow the generation of a fast electrical impulse along the axon Location: where the axon is exposed between the schwann cells
Secondary Messenger Function: responsible for the proliferation, differentiation, and maturation of nerve cells and provide a direct connection between signaling molecules Location: in resting cells
Synapse Function: connects sensory organs, like those that detect pain or touch, in the peripheral nervous system to the brain Location: connection between an axon and a dendrite
Dopamine Function: allowing you to feel pleasure, satisfaction and motivation Location: midbrain nuclei
Serotonin Function: mood, sleep, digestion, nausea, wound healing, bone health, blood clotting and sexual desire Location: peripheral nervous system
Vesicles Function: store various neurotransmitters that are released at the synapse Location: axon
Receptors Function: transmit the actions of bound neurotransmitters, thus enabling cell-to-cell communication in the nervous system Location: n the plasma membrane of postsynaptic cells (in some cases also in the presynaptic terminal)
Action Potential Function: providing for—or with regard to saltatory conduction, assisting—the propagation of signals along the neuron's axon toward synaptic boutons situated at the ends of an axon
Sodium Potassium Pump Function: helps to maintain osmotic equilibrium and membrane potential in cells Location: membrane
Depolarization Function: movement of a cell's membrane potential to a more positive value
Repolorization Function:the change in membrane potential that returns it to a negative value just after the depolarization phase of an action potential which has changed the membrane potential to a positive value
Diffusion Function: transfer of chemical signals from one neuron to another during neurotransmission
Concentration Gradient Function: the difference in ion concentrations between the inside of the neuron and the outside of the neuron
Reflex Arc Function: controls a reflex
Reflex vs. Reaction Reactions are voluntary responses whereas reflexes are involuntary or unintentional
Electroencephalogram (EEG) Function: a recording of brain activity
Electromyogram (EMG) Function: to assess the health of muscles and the nerve cells that control them (motor neurons)
Positron Emission Tomography (PET) Scan Function: help reveal the metabolic or biochemical function of your tissues and organs
Computerized Tomography (CT) Scan Function: create cross-sectional images (slices) of the bones, blood vessels and soft tissues inside your body
X-Ray Function: produce images of internal tissues, bones, and organs on film or digital media
Magnetic Resonance Imaging (MRI) Function: a noninvasive way for your doctor to examine your organs, tissues and skeletal system
Created by: kennedy563084
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