In the resting neuron, _____ channels allow a small amount of Na+ and K+ to pass into and out of the cell along their concentration gradients.

Which of the following is true about multipolar neurons?

Which factor can influence the force of muscle contraction?

A postsynaptic neuron receives four signals simultaneously that create four postsynaptic potentials.  There are EPSPs that depolarize the membrane at the trigger zone: EPSP#1= +3mV, EPSP#2= +9mV, EPSP#3= +13mV.  The last one is an IPSP that hyperpolarizes the membrane: IPSP= -10mV.  Based on these four incoming signals, would this postsynaptic neuron be capable of making an action potential (assume threshold is reached if net depolarization is sufficient)?

Which of the following correctly describes what occurs when an action potential reaches the synaptic terminal of a motor neuron?

The rapid rise and fall in force produced by a muscle fiber after a single action potential is…

Which of the following best describes the function of the motor end plate in skeletal muscle contraction?

Which one of the following changes occurs during skeletal muscle contraction?

Which of the following structures is responsible for transmitting the action potential deep into the muscle fiber?

The type of contraction in which the muscle fibers do not shorten is called…