Which of the following phrases is most relevant to the above diagram?

During ____________________, blood ‘falls’ down through the AV valves passively, filling the ventricles partially:

“C345 Keeps you alive”; this describes the innervation of the:

Bile acts as a digestive enzyme.

The lymphoid cell line produces:

Neutrophils can engulf or ‘phagocytose” invaders.

When water is lost, but electrolytes are retained:

Chloride is the major anion of the _____________:

When blood glucose levels are high

The let-down reflex is triggered when _________________causes mammary gland smooth muscle cell contraction: