- OCR 21st Century Reflex arc Survival of an organism depends on its ability to respond to changes in the environment. The nervous system allows fast acting but short lived responses.

WITHIN the past decade, the use of electronic methods has laid bare much of the mechanism underlying the myotatic, or stretch, reflex of mammalian striated muscle. Outstanding among these advances ...

The otolith organs consist of the utricle and saccule. The utricle mediates the utriculo-ocular reflex by detecting horizontal head translation and static head tilt. Skew deviation is a vertical ...