During skeletal muscle contraction, ________.

The transport of digested food into the blood or lymph is ________.

The return of molecules from the nephron tubules to the blood is called as ________.

Interstitial fluid is derived from ________.

At what region of the neuron are action potentials first produced?

Sensations are sharpened via ________.

Spatial summation ________.

Cells placed in hypertonic solutions will ________.

The ________ separates the abdominal and thoracic cavities.

Chemicals that stimulate action potentials in postsynaptic cells are called ________.