sorry i have a lot of questions, but i really need help!
A curious child touched the outside of a barbecue grill containing red-hot coals. Before he was even aware of what happened, he jerked his hand away. A second or two later, he felt pain and began to cry.
which is the sequence of structures involved in causing the child to remove his hand?
A. Motor neurons, effectors, sensory neurons, interneurons
B. Motor neurons, interneurons, effectors, sensory neurons
C Sensory neurons, motor neurons, interneurons, effectors
D. Sensory neurons, interneurons, motor neurons, effectors
Activites During Impulse Transmission Along A Neuron
1. Diffusion of ions
2. Release of acetylcholine
3. An increase in the permeability of axon membrane
4. An increase in the use of ATP
5. Release of cholinesterase
6. Conduction of impulses
After the dendrites of a neuron are stimulated, which sequence of activites occurs in the axon and the synapse?
A. 3,1,6,4,2,and 5
B. 4,3,1,6,5,and 2
C. 3,4,1,6,5,and 2
D. 4,1,3,6,2,and 5
The neuron in an experiment was taken from a spinal cord. the generation of an action potential in the neuron was slower than the 24 m/s that is typical with sensory neurons. why?
A. Axon lenght is much longer in sensory neurons.
B. Myelination was absent in this spinal neuron.
C. The neurotransmitters were blocked in this spinal neuron.
D. The Nodes of Ranvier were absent in the sensory neurons.
The voltmeter showed a negative reading and the sodium ion concentration remained constant outside the axon. this could best be explained by the fact that the
A. Sodium pump has exhausted ATP reserves
B. Dendrites were stimulated by the Realese of Acetylcholine (ACh)
C Threshold for the neuron was not reached
D Action potential was established and sustained
Which neuron function is most likely affected by diisopropyl fluorophosphate?
A. Myelin Formation
B. Synaptic transmission
C. Portein synthesis
D. Active transport
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