I seem to remember that some members on here wanted 'idiots guides'. I have copied the pic and marked up the parts, and added a brief description. I hope it may be of some use. And I'm sure people will comment if I get it wrong!!
1. Cross member - bolts between the chassis rails, and some of the steering and suspension components attach to it. The engine normally mounts to brackets on the cross member (X-member) in the engine bay.
2. Track control arm - this bolts between the bottom of the strut and the cross member, and keeps the front wheels the correct distance apart (thereby controlling the track), while allowing up and down movement of the wheels, as well as rotation of the bottom of the strut to allow steering. These can be made adjustable. The camber of the wheels (how upright they are) can also be altered by lengthening them (negative camber) or shortening (positive camber). If these are of a different length to design, it may induce bump steer. This is where the pivot for the track control arm and the steering rack are in different places, and as the wheel is forced up on a bump particularly when cornering, the steering linkage/rack turns the wheel with no driver input.
3. Track rod - is part of the steering rack, or on a car with a steering box is a rod with a joint at each end. These push the front wheels round to steer the car. The steering rack or linkage will ensure that the inside wheel takes a tighter turn than the outside wheel on a corner.
4. Antiroll bar - does just what it says on the tin, by twisting when the car is cornering. It is designed to try to stop some body roll, and therefore keeping both front wheels on the road. The ARB also keeps the front wheels in the correct position front to back, or they would move back particularly badly under braking, and the tyres would hit the rear of the wheel arch/A pillar area!!
Hope this is of help to some, and I'm sure others will have bit to add or take away!!