what is this and how much will it cost me Options

[rspjean]

the one on my car is bent what is it called and how much does it cost...,anyone got a spare one ?

[Negative]

Could someone who knows what they are talking about fill in the blanks for all those arrows that are not labeled? I don't need part numbers just names (I.E. Lower Control Arm) and just for ease of discussion maybe add a number before the name (I.E: 1. Lower Control Arm).
The reason why is - everything I know about cars is from doing. Changing all the parts that have ever gone wrong on the 5 Celicas I've had has never caused me to do any major suspension work therefore I know almost nothing about most of the parts on there. The extent of my knowledge is that I could change the springs and struts from lowering various cars but if someone told me their Lower control arm was bent I could change it out for them but only if they pointed to it or the damage was obvious.
I help alot of the tuner Toyotas in my area with rediculously cheap labor (I often work for parts and beer LOL) and it would behove me to know more of what I was talking about.
Again only someone who knows what they are talking about please - the last thing I need to do is give people disinformation.
Thanks in advance for anyone who steps up. It is much appreciated.