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- 1. Multiple Choice
What is a nerve cell called?
axon
neuron
dendrite
myelin
- 2. Multiple Choice
Which 2 are parts of the central nervous system?
brain
nose
spinal cord
left big toe
- 3. Multiple Choice
The nervous system is composed of the ___, ___, and ___.heart, brain, kidneyslungs, liver, stomachbrain, spinal cord, nerveseyes, pancreas, veins - 4. Multiple Choice
Which ions are MAINLY implicated in the potential of the membrane?
Na and Ca
Ca and Fe
K and Cl
Na and K
- 5. Multiple Choice
Part of a neuron that receives information from other neurons is called...
axondendritesmyelin sheathsynapse - 6. Multiple Choice
A signal molecule that transmits nerve impulses across synapses is called...
neuronneurotransmitternerveaction potential - 7. Multiple ChoiceWhen a neuron is depolarized, what are the first channels to open?SodiumPotassiumCalciumACTH
- 8. Multiple ChoiceWhen a neuron is resting, the inside of the axon has a ____________ charge.positivenegative
- 9. Multiple ChoiceWhat is the insulating membrane that surrounds parts of the axon that helps to protect & propagate action potential?AxonDendritesNode of RanvierMyelin Sheath
- 10. Multiple ChoiceZDendriteAxon TerminalNeurotransmittersSynapse
- 11. Multiple ChoiceX
Axon Terminal
NeurotransmittersDendriteSynapse - 12. Multiple Choice
Nerve impulse transmission refers to the ability of the neuron to...
reproduce
receive an chemical signal
produce sodium or potassium
send an electrochemical signal
- 13. Multiple Choice
The sodium potassium pump...
is energy (ATP) free as sodium and potassium move in and out by diffusion as needed
moves 3 sodium ions into the neuron and 3 potassium out only if ATP is present
moves 3 sodium in to the neuron and 2 potassium without energy from ATP
moves 3 sodium out of the neuron and 2 potassium into the neuron only if there is energy from ATP
- 14. Multiple ChoiceWhat is structure labeled B in the picture?DendriteAxonCell BodyAxon Terminal
- 15. Multiple ChoiceWhat is structure labeled D in the picture?DendriteAxonCell BodyAxon Terminal
- 16. Multiple ChoiceWhich of the following is the correct order of the direction of a message?Dendrite-Cell Body-Axon-SynapseSynapse-Cell Body-Axon-DendriteDendrite-Synapse-Cell Body-AxonAxon-Cell Body-Dendrite-Synapse
- 17. Multiple Choice
A reflex reaction is an .....
involuntary response
voluntary response
conscious response
response
- 18. Multiple Choice
Which of these are the correct pathway for the reflex arc?
Stimulus-receptor- motor neuron -interneuron-sensory neuron-response
Stimulus-receptor-sensory neuron-interneuron- motor neuron -response
Stimulus-interneuron-sensory neuron- motor neuron- receptor-response
Stimulus-receptor-sensory neuron-response- interneuron - motor neuron
- 19. Multiple Choice
Look at the reflex arc shown in the diagram. Which neurone is marked by the letter X?
Sensory neuron
Interneuron
Motor neuron
CNS
- 20. Multiple Choice
Look at the reflex arc shown in the diagram. Which neurone is marked by the letter Y?
Sensory Neuron
Interneuron
Motor neuron
CNS
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