In Figure Q3-52, a 5-Ms Depolarizing Current Pulse Was Injected

question 46

Essay

In Figure Q3-52, a 5-ms depolarizing current pulse was injected into the soma, which produced a single action potential that was recorded in the cell body. Right after that, the distant dendrites of the neuron were activated, which generated a dendritic spike, which propagated to the cell body and resulted in two additional somatic action potentials. What would happen to (A) the first and (B) the second two action potentials if you blocked the dendritic action potentials? Figure Q3-52

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Definitions:

Nigrostriatal Dopamine System

A pathway in the brain involved in the control of movement; degeneration of this system is associated with Parkinson's disease.

Acetylcholine System

A neurotransmitter system that plays a critical role in muscle activation, memory, and attention.

Norepinephrine System

A component of the brain's neurotransmitter systems that influences attention, emotion, and bodily responses to stress and physical activity.

Tourette Syndrome

A neurological disorder characterized by repetitive, involuntary movements and vocalizations called tics, often emerging in childhood.