section_path: Physiology/Hydraulic functions
section_name: Hydraulic functions
paragraph_text: Hydraulic functions
  
  The restriction of blood flow can also be used in specialized tissues to cause engorgement, resulting in an erection of that tissue; examples are the erectile tissue in the penis and clitoris.
  
  Another example of a hydraulic function is the jumping spider, in which blood forced into the legs under pressure causes them to straighten for a powerful jump, without the need for bulky muscular legs.