The _____________ tightens the neck and draws the corners of the mouth downward as in expressing horror. 

2.  Endothelial dysfunction, broadly defined as an overall reduced vasodilation in response to known endothelium-dependent vasodilators, has been associated with reduced availability of nitric oxide.  Describe how reactive oxygen species, superoxide (O2-) in particular, contribute to endothelial dysfunction in arteries?  What are the sources of superoxide in endothelial cells?  What enzymes are critical in buffering superoxide.

After____ is modified into Cyclic-AMP, by _____ it activates kinases that go on to trigger responses of target cells.

Pericytes are

A nursing infant develops a powerful sucking muscle that inserts to the muscle which adults also use for whistling (obicularis oris). What is this muscle called?

A hormone that controls the release of other hormones is called a ____hormone

Which muscles are contracted to exhale forcibly?

When would the body utilize anaerobic respiration versus aerobic respiration?  

Normal CO is around

What muscle is primarily responsible for preventing foot drop?