Term
| What are the 3 types of neurons? |
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Definition
1. sensory/afferent
2. motor/efferent
3. interneurons |
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Term
| What transmit impulses to the brain and spinal cord? |
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Definition
| sensory neurons/afferent neurons |
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Term
| A nerve impulse can also be called an? |
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Definition
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Term
| A nerve impulse must be initiated by a? |
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Definition
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Term
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Definition
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Term
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Definition
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Term
| The brain and spinal cord belong to what division of the nervous system? |
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Definition
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Term
| This type of cell does NOT transmit impulses within the nervous system, but are supporting cells. |
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Definition
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Term
| Neurotransmitters are released at the ________. |
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Definition
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Term
| Why does a neuron at rest have more of a positive charge on the OUTSIDE of the cell membrane? |
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Definition
| More sodium on the outside of the cell. |
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Term
| What is an effector? How does it relate to a nervous impulse? |
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Definition
| An effector is the site where we see actions because of an impulse; neurotransmitter change at effector site. |
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Term
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Definition
| Nerve impulse;Action Potential |
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Term
| What is taking place in the neuron during depolarization? |
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Definition
| Movement of electricity through Schwann Cells; Sodium moving in. |
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Term
| What is the importance of a neurotransmitter? |
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Definition
| Chemical that allows neurons to communicate. |
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Term
| What is a neurotransmitter? |
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Definition
| Chemicals by which neurons communicate. |
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Term
| Explain what steps occur once an action potential reaches a synapse.... |
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Definition
1. Neurotransmitter released across snynaps.
2. Neurotransmitter binds to a receptor on post synaptic neuron. |
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Term
| The autonomic nervous system consists of motor neurons that conduct impulses to what kinds of tissues? |
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Definition
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Term
| These autonomic neurons conduct impulses between the spinal and a ganglion..... |
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Definition
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Term
| These autonomic neurons conduct impulses from a ganglion to an effector site.... |
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Definition
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Term
| The sympathetic preganglionic neurotransmitter is? |
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Definition
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Term
| The sympathetic postganglionic neurotransmitter is? |
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Definition
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Term
| The parasympathetic preganglionic neurotransmitter is? |
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Definition
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Term
| What are the 2 main divisions of the ANS? |
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Definition
1. parasympathetic (normal response)
2. sympathetic (stress) |
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Term
| ________ is the name of the nervous system division that includes the nerves that extend to the outlying parts of the body. |
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Definition
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Term
| A self-propogating wave of electrical disturbances that travels along the surface of a neuron's plasma membrane is? |
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Definition
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Term
| What produces myelin in the PNS? |
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Definition
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Term
| What produces myelin in CNS? |
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Definition
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Term
| Trauma to the CNS is damage to the ______. |
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Definition
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Term
| The gaps between myelin segments along an axon are called? |
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Definition
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Term
| Neurons located within the CNS are called? |
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Definition
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Term
| Neuroglia that increase in number during an infection of the CNS are? |
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Definition
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Term
| Compared to the inside, the outside of the cell membrane of a neuron that is depolarized would be? |
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Definition
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Term
| After action potential the cell membrane is restored to rest by _____ moving back out and _____ moving in. This is called repolarization. |
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Definition
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Term
| The region of communication between 2 neurons is the _______. |
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Definition
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Term
| A neurotransmitter that slows or stops an effector is referred to as an _____. |
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Definition
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Term
| What is the predominate neurotransmitter in the autonomic nervous system? |
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Definition
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Term
| Cholinergic fibers release what neurotransmitter? |
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Definition
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Term
| Adrenergic fibers function with what division of the nervous system? |
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Definition
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Term
| Our pupils dilate, our stomach motility decreases, our heartbeat speeds up and our bronchioles dilate. These responses are produced with what division of the nervous system? |
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Definition
| Sympathetic Nervous System |
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Term
| Identify 3 major parts to a neuron and their functions. |
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Definition
Cell body - integrates information d
Dendrites - brings into cell body
Axon- takes impulse away |
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Term
| The movement of Na and K is classified as what type of transport? |
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Definition
| Sodium Potassium Pump, Active |
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Term
| Afferent is synonymous with what type of neuron? |
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Definition
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Term
| Efferent is synonymous with what type of neuron? |
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Definition
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Term
| What transmit impulses away from the brain and spinal cord? |
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Definition
| Motor Neurons/Efferent Neurons |
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Term
| Glucose is an important nutrient in our body. The neurotransmitter Insulin helps us use glucose for energy. What organic molecule do we have to break down to get glucose molecules? |
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Definition
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Term
| What functions as an emergency system? |
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Definition
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Term
| A nerve impulse must be initiated by? |
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Definition
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Term
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Definition
Conduct Impulses
Don't Regenerate |
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Term
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Definition
Support Cells
Do Not Conduct Impulses
Regenerate |
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Term
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Definition
Produce Myelin
Regenerate |
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Term
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Definition
White, Fatty Substance
High Speed |
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Term
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Definition
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Term
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Definition
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Term
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Definition
| Regulates body through electrical impulses |
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Term
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Definition
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Term
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Definition
Autonomic
Somatic (voluntary)
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Term
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Definition
Parasympathetic (normal)
Sympathetic (stress, fight or flight) |
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Term
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Definition
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Term
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Definition
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Term
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Definition
| Hold blood supply to neurons |
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Term
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Definition
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