What is the "steering wheel" used to help guide the horse?

Question

(also about horses.) it might be another word for "steering wheel"

Answer 1

reins?

Answer 2

the reins?????

Answer 3

It really depends on what aids the horse is trained in, ie. seat, hands, legs, verbal, bit pressure, etc.  

   -a driving horse will turn right/left in  

    response to the verbal gee/haw

   -some respond to "neck reining" laying

    the rein on either side of the neck to go

    right/left

   -some horses "plow rein" direct bit

    pressure

   -some respond to leg pressure, contact

    from the riders leg to an area on the

    horses side

   -position and pressure of the seat

There are literally hundreds of "steering wheels" but they all start with the reins.  

[As an example, 2 years ago we bought a Paso Fino mare that was used as a plow horse, she literally plowed agave fields.  We started pleasure riding on her and got her responding to the basic aids; reins, heels, legs and hands.  Now, the little mare is competing in mid-level Charias (Mexican dressage is the best way to desribe it.)  She is controlled completely with voice, seat and legs.]