Final - Exam (9/20) - [Exam 1 - Section 3] Flashcards
A neuron receives up to _________ connections from other neurons
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Inputs can _________ or _________ the neuron
- excite
- inhibit
Input into neurons can be:
- _________
- _________
- Excitatory
- Inhibitory
_________ :
- -Partial depolarization (resting membrane potential is less negative)
- -Excitatory postsynaptic potential (_____ )
- Excitatory
- EPSP
Excitatory:
- -Partial depolarization (resting membrane potential is _________ negative)
- -Excitatory _________ potential (EPSP)
- less
- postsynaptic
_________ :
- -Partial hyperpolarization (resting membrane potential is more negative)
- -Inhibitory postsynaptic potential (_____)
- Inhibitory
- IPSP
Inhibitory:
- -Partial hyperpolarization (resting membrane potential is _________ negative)
- -Inhibitory postsynaptic _________ (IPSP)
- more
- potential
Inhibitory:
- -Partial _________ (resting membrane potential is more negative)
- -Inhibitory postsynaptic potential (IPSP)
-hyperpolarization
Excitatory:
- -Partial _________ (resting membrane potential is less negative)
- -Excitatory postsynaptic potential (EPSP)
depolarization
Whether a neuron fires depends on the sum of the _________ it receives from other _________
- inputs
- neurons
Inputs on neuron combined:
_________ summation:
Potentials arriving within a short amount of time
Temporal
Inputs on neuron combined:
_________ summation
Potentials arriving at different points on the dendrites and cell bodies at the same time
Spatial
Inputs on neuron combined:
Temporal summation:
Potentials arriving within a _________ amount of time
short
Inputs on neuron combined:
Spatial summation:
Potentials arriving at different points on the dendrites and cell bodies at the _________ time
same
Postsynaptic Neuron firing:
Summed potentials spread to _________ – if above threshold neuron fires
axon hillock
Postsynaptic Neuron firing:
Summed potentials spread to axon hillock – if _________ threshold neuron fires
above
neuron integrates information from many _________
inputs
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Two parts of the nervous system:
- _________ nervous system
- -Autonomic and somatic nervous system
- -Reflexes
- _________ nervous system
- -Brain and spinal cord
- -Meninges
- -Blood-brain barrier
- Peripheral
- Central
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Two parts of the nervous system:
- Peripheral nervous system
- _________ and _________ nervous system
- -Reflexes
- Central nervous system
- -Brain and spinal cord
- -Meninges
- -Blood-brain barrier
- Autonomic
- somatic
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Two parts of the nervous system:
- Peripheral nervous system
- -Autonomic and somatic nervous system
- _________
- Central nervous system
- -Brain and spinal cord
- _________
- -Blood-brain barrier
- Reflexes
- Meninges
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Two parts of the nervous system:
- Peripheral nervous system
- -Autonomic and somatic nervous system
- -Reflexes
- Central nervous system
- _________
- -Meninges
- _________
- Brain and spinal cord
- Blood-brain barrier
A _________ is a single neural cell
neuron
A _________ is a bundle of axons running together like a multi-wire cable
nerve
A nerve is a bundle of axons running together like a multi-wire _________
cable
the term nerve is only used in the _________ nervous system (____)
- peripheral
- PNS
Inside the _________
- -bundles of axons are called tracts or projections
- -Groups of neuron cell bodies are called nuclei
central nervous system (CNS)
Inside the central nervous system (CNS)
- -bundles of axons are called _________ or projections
- -Groups of neuron cell bodies are called _________
- tracts
- nuclei
Inside the central nervous system (CNS)
- -bundles of _________ are called tracts or projections
- -Groups of _________ cell bodies are called nuclei
- axons
- neuron
The nervous system is split into 2 parts:
- _________
- _________
- Central nervous system (CNS
- Peripheral nervous system (PNS)
Central nervous system (CNS):
_________
Brain and spinal cord
Peripheral nervous system (PNS):
Everything outside the _________
CNS
Peripheral nervous system:
_________ – works automatically without our awareness (regulates heart beat, digestion, glandular activity, breathing etc)
_________ – control of skeletal muscles
- Autonomic
- Somatic
Peripheral nervous system:
_________ :
- -Parasympathetic
- -Sympathetic
Autonomic
Peripheral nervous system:
Autonomic – works automatically without our _________ (regulates heart beat, _________, glandular activity, breathing etc)
Somatic – control of _________ muscles
- awareness
- digestion
- skeletal
Peripheral nervous system:
Autonomic:
– _________ – calming (eg, rest and digest - decreases blood pressure and heart rate)
Parasympathetic
Peripheral nervous system:
Autonomic:
– _________ – stimulating (eg, fight or flight response – increase in blood pressure and heart rate)
Sympathetic
Peripheral nervous system:
Autonomic:
–Parasympathetic – calming (eg, rest and digest - _________ blood pressure and _________ )
- decreases
- heart rate
Peripheral nervous system:
–Sympathetic – stimulating (eg, _________ response – _________ in blood pressure and heart rate)
- fight or flight
- increase
Peripheral nervous system:
_________ – control of skeletal muscles
Somatic
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_________ – an automatic response to stimuli involving sensory and motor neurons
REFLEXES
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REFLEXES – an automatic response to stimuli involving _________ and _________ neurons
- sensory
- motor
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The basic unit of the _________ is the neuron
nervous system