Term
| What is the side of a glia compared to a nueron? |
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Definition
| glia are 1/10 the size of a nueron |
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Term
| What is the original thought of the glia's function? |
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Definition
| holding the brain together |
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Term
| What does a astrocyte do? |
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Definition
| nourishes, maintains and synchronizes neuronal behavior |
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Term
| What is the function of microglia? |
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Definition
| maintenance and immune system activity |
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Term
| What types of cells support myelin production? |
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Definition
| schwann cells and oligodendrocytes |
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Term
| What appearance is given to myelin in the PNS? |
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Definition
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Term
| Oligodendrocytes produce myelin in which system? |
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Definition
| the central nervous system? |
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Term
| What is the function of a radial glia? |
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Definition
|
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Term
| where do the radial glia move neurons? |
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Definition
| from where they are created to the outside of the cortex |
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Term
| What are the three types of nuerons? |
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Definition
| motor, sensory, and internueron |
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Term
| What do neurons consist of? |
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Definition
| cell body, long single fiber called a neuron, multiple branch structures called dendrites |
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Term
| What is a unipolar neuron consist of? |
|
Definition
| one process, therefore one dendrite |
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Term
| What do multipolor neurons consist of? |
|
Definition
| one cell body, one axon and many dendrites |
|
|
Term
| do neurons with multiple axons exist? |
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Definition
|
|
Term
| How likely is a neuron to regenerate? |
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Definition
| Least likely of all the neuerons |
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|
Term
| How does information travel through a neuron? |
|
Definition
| into the dendrites and leaving through the axon |
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Term
| What defines an animal cell? |
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Definition
|
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Term
| What is a bilipid? what is it made out of |
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Definition
|
|
Term
| What is the function of a bilipid? |
|
Definition
| being the barrier between the outside and the inside |
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Term
|
Definition
| gooey substance that helps the cell keep its shape, containing nutrients, ions, and amino acids |
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Term
|
Definition
1. a cell within a cell
2. contains the DNA telling the cell what to do
3. runs the cell and its operating structure
4. contains the history of the species that the cell came from [genome and genotype] |
|
|
Term
| What does mitochondria do? |
|
Definition
|
|
Term
|
Definition
| a place where amino acids get stuck together and create proteins |
|
|
Term
| What do active cells have a lot of? |
|
Definition
|
|
Term
| What are in vesicles and what do they look like? |
|
Definition
| full of neurotransmitters and they look like soap |
|
|
Term
| What are two substances that can pass the phospholipid barrier? |
|
Definition
|
|
Term
| What do the genes of neurons do? |
|
Definition
| generate electricity and synthecize chemicals |
|
|
Term
| What type of potentials exist? |
|
Definition
| resting membrane potential, action potential, and grade potentials |
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|
Term
| Because neuron cells do not divide what do they need to last a life time? |
|
Definition
protecin
microglia - to protect immune system
blood-brian barrier - only fat-loving molecules like opiates can pass |
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|
Term
| Where are you most likely to find a sensory neuron? |
|
Definition
skin, ear, eyes
they take information to the brain
afferic to the brain regarding CNS |
|
|
Term
| What do neurons generate? |
|
Definition
|
|
Term
| Chemicals that synthesize are called.... |
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Definition
|
|
Term
|
Definition
|
|
Term
| What aside from neurons synthesize chemicals? |
|
Definition
|
|
Term
|
Definition
| 10x more concentrate outside of the resting nueron |
|
|
Term
| where is potassium concentrated? |
|
Definition
| inside of the resting neuron |
|
|
Term
| Where are negatively charged amino acids and what are they? |
|
Definition
| inside resting neurons [negative calcium] |
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|
Term
| How are sodium channels controlled? |
|
Definition
|
|
Term
What is the exchange of neurons in a sodium/potassium pump?
what does this do to the membrane? |
|
Definition
3 sodium ions out for every potassium ion in
polarizes it |
|
|
Term
| What is the resting potential? |
|
Definition
|
|
Term
|
Definition
| from when the sodium and potassium channel opens until the sodium channels close |
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|
Term
| What is the repolarization phase? |
|
Definition
| from when the sodium channels close to when the potassium channels start to close |
|
|
Term
| what happens during hyperpolarization? |
|
Definition
| from when the potassium channels start to close to when the sodium channels open |
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Term
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Definition
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Term
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Definition
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