Explain, in detail, the contraction of a skeletal muscle. Start with an action potential in the axon and end with the termination of contraction. Make sure that you include all stages of ion movement and all important muscle proteins.

The S2 heart sound is heard during the rapid filling phase of the cardiac cycle.

The S1 sound is caused by the closure of the semilunar valves.

What ion is most responsible for the refractory period experienced in neurons and muscle cells?

Suppose the money supply increases by 6%, velocity increases by 4%, and real output increases by 3%. What is the rate of inflation or deflation?

Which economic policy path model is true for the various schools of macro thought?

Phase 0 of the non-pacemaker cells is largely dependent on sodium influx.

Based on the selections from the Restoration and Eighteenth Century, what lessons do we learn about human pride? Choose a specific piece to support your response.

Full contraction of the left side of the heart is faster than the right side of the heart.

All of the following are released from the anterior pituitary EXCEPT