The anal _____ is a tight band of muscle that is ringlike in shape and constricts the opening of a passageway

When using pressure as the trigger variable, where do you typically set the trigger level?

a. 0.5 to 1.5 cm H2O below the baseline ex-piratory pressure b. 0.5 to 1.5 cm H2O above the baseline ex-piratory pressure c. 2.0 to 3.5 cm H2O below the baseline ex-piratory pressure d. 2.0 to 3.5 cm H2O above the baseline ex-piratory pressure

The function of the ________ in a neuron is to send information (nerve impulses) away from the cell body. 

Fill in the blank(s) with the appropriate word(s).