1 Nerve root: Stretch reflexes subserved by the root are depressed in proportion to the contribution that root makes to the reflex. 2  Superficial reflexes are rarely depressed since there is extensive overlap in the distribution of individual nerve roots of the skin and muscle tested in the superficial reflexes.ormal muscle stretch reflexes result in contraction only of the muscle whose tendon is stretched and the agonist muscles (i.e., muscles that have the same action). There is also inhibition of antagonist muscles. Reflexes are graded at the bedside in a semi-quantitative manner.
Part Information. This manufacturer-approved unloader valve kit (part number 315747GS) is for pressure washers. Unloader valve kit 315747GS includes the parts needed to replace the unloader valve, which opens to relieve water pressure and recirculate water through the pump when the spray wand isn't in use and the pressure washer is running. Wear work gloves to protect your hands when installing this part.
These, then, are the main parts you'll find inside a pressure washer: 1  Water inlet: A hose that connects the pressure washer to the main water supply. 2  There's usually a filter in the inlet to stop dirt and debris entering the washer and clogging up the works. Cold water flows in from a faucet (tap) through another hose and is filtered on the way in. 2  An electric motor or diesel engine powers the washer. 3  Powered by the engine or motor, a water pump (impeller) draws in the detergent and water and mixes them together.