Chapter 12 Questions
1. Imagine rubbing your fingertips across a plane of smooth glass and then across a brick. What
kinds of skin receptors help you distinguish the two surfaces? As far as your somatic sensory
system is concerned, what is d
Chapter 5 Questions
1. What is meant by quantal release of neurotransmitter?
The elementary unit of a neurotransmitter release is the content of a synaptic vesicle. Each
vesicle contains several thousand transmitter molecules. The tot
Chapter 3 Questions
There is a much greater K+ concentration inside the cell than outside. Why, then, is the
resting membrane potential negative?
The resting membrane potential is negative because the neuron is filled with negative
Chapter 2 Questions
1. State the neuron doctrine in a single sentence. To whom is this insight credited?
The neuron doctrine states that the neurites of different neurons are not continuous with one
another and must communicate by con