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20 questions
What is a nerve cell called?
axon
neuron
dendrite
myelin
Which 2 are parts of the central nervous system?
brain
nose
spinal cord
left big toe
Which ions are MAINLY implicated in the potential of the membrane?
Na and Ca
Ca and Fe
K and Cl
Na and K
Part of a neuron that receives information from other neurons is called...
A signal molecule that transmits nerve impulses across synapses is called...
Axon Terminal
Nerve impulse transmission refers to the ability of the neuron to...
reproduce
receive an chemical signal
produce sodium or potassium
send an electrochemical signal
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
A reflex reaction is an .....
involuntary response
voluntary response
conscious response
response
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
Look at the reflex arc shown in the diagram. Which neurone is marked by the letter X?
Sensory neuron
Interneuron
Motor neuron
CNS
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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