4 Written Questions

1. stimulate muscles to contract by generating action potentials to muscle fibers
2. tiny sacs in the presynaptic terminal containing neurotransmitters known as acetylcholine (ACh)
3. will change if the membrane permeability to one or more ions is selectively altered
4. muscle fiber membrane on the surface which receives information from a presynaptic neuron

3 Multiple Choice Questions

1. reversal of charges of a cell membrane resulting in muscle contraction in a muscle fiber
   1. Acetylcholine
   2. Action Potential
   3. Presynaptic Terminal
   4. Motor Neurons
2. releases neurotransmitters into the synaptic cleft
   1. Postsynaptic Membrane
   2. Presynaptic Terminal
   3. Synaptic Cleft
   4. Synaptic Vesicles
3. synaptic junction between a nerve axon and a muscle fiber; and the presynaptic terminal is separated from the postsynaptic terminal by the synaptic cleft
   1. Action Potential
   2. Neuromuscular Junction
   3. Motor Neurons
   4. Terminal Cisterna

3 True/False Questions

1. Acetylcholine → space between the presynaptic terminal & the muscle fiber membrane where neurotransmitters are released

   True        False

2. Synaptic Cleft → space between the presynaptic terminal & the muscle fiber membrane where neurotransmitters are released

   True        False

3. Terminal Cisterna → contains specialized type of endoplasmic reticulum that synthesizes & stores large amounts of calcium ions

   True        False