Exam 12: Neural Tissue

How does blocking retrograde axoplasmic transport in an axon affect the activity of a neuron?

Presynaptic facilitation by serotonin is caused by

Figure 12-2 The Nerve Action Potential Use Figure 12-2 to answer the following questions: -Which area of the graph shows when chemically-gated sodium channels are open?

In a(n)________ neuron,the dendrites and axon are continuous or fused.

Sensory information from skeletal muscles travels over ________ fibers.

________ neurons are short,with a cell body between dendrite and axon,and occur in special sense organs.

Summation that results from the cumulative effect of multiple synapses at multiple places on the neuron is designated

________ neurons are the most common class in the CNS.

Ions can move across the plasma membrane in which of the following ways?

Voltage-gated sodium channels have both an activation gate and a(n)________ gate.

Figure 12-1 The Neuron Use Figure 12-1 to answer the following questions: -What is contained inside the structure labeled "5" ?

A drug that blocks ATP production is introduced into an isolated axon preparation.The axon is then repeatedly stimulated,and recordings are made of the response.What effects would you expect to observe?

The ion that triggers the release of acetylcholine into the synaptic cleft is

The part of the peripheral nervous system that carries sensory information to the CNS is designated

Extensive damage to oligodendrocytes in the CNS could result in

At a(n)________ synapse,a neurotransmitter is released to stimulate the postsynaptic membrane.

Type ________ fibers have the largest diameter axons.

The site of intercellular communication between a neuron and another cell is the

The sensory loss and muscle weakness associated with multiple sclerosis are a consequence of ________.

Adrenergic synapses release the neurotransmitter