Is my workout routine decent or do I need to modify it?

Question

I posted a question about this already, but here's a more detailed one.

I workout on Monday, Tuesday, Thursday, and Friday.

I prefer to work different body parts each day. Working one same body part intimidates me.

Monday:
Bench Press -- 4 sets 12/10/8/8
Squats -- 3 sets 12/10/8
Deadlifts -- 4 sets 12/10/8/8
Back Extensions -- 2 sets 15/15
Crunches -- 3 sets 20/15/15/10
Pulls Up -- 3 sets 12/10/8

Tuesday:
Pectoral Flies -- 3 sets 12/10/8
Lunges -- 3 sets 12/10/8
Rows (opposite biceps curl) -- 3 sets 12/10/8
Forearms Curl -- 3 sets 12/10/8
Shoulders -- 3 sets 12/10/8
Calves -- 3 sets 12/10/8

Thursday:
Legs Presses -- 3 sets 12/10/8
Legs Curl -- 3 sets 12/10/8
Ropes Pull-- 3 sets 12/10/8
Lats -- 3 sets 12/10/8
Back Pulling -- 3 sets 12/10/8
Abs Machine -- 3 sets 12/10/8

Friday:
Chest Press -- 3 sets 12/10/8
Barbells Squats-- 3 sets 12/10/8
Legs Extensions -- 3 sets 12/10/8
Biceps Curl -- 3 sets 12/10/8
Dumbells Forward -- 3 sets 12/10/8
Arms Extensions -- 3 sets 12/1

Suggestions?

I make up names because I don't know what some of those exercises/machines are called, sorry!

Answer 1

It really depends on what your current body condition is, what you are trying to accomplish, and how consistent you are.

A swimmer and a baseball player and a tennis player and a horse jockey and a gymnist would have entirely different needs, therefor entirely different workouts, and always the other factor is what your age, current condition, and eating conditions are.

Answer 2

You have a good workout schedule but you need to work the same body parts on the same days. Here's what I have changed for you. You only need to do abs twice a week. Just remember that if you work the same body part withing 48 hours, it doesn't give the muscles to time they need to grow.

Monday:
Bench Press -- 4 sets 12/10/8/8
Pectoral Flies -- 3 sets 12/10/8
Chest Press -- 3 sets 12/10/8
Biceps Curl -- 3 sets 12/10/8
Arms Extensions -- 3 sets 12/110/8
Forearms Curl -- 3 sets 12/10/8
Crunches -- 3 sets 20/15/15/10

Tuesday:
Squats -- 3 sets 12/10/8
Dead lifts -- 4 sets 12/10/8/8
Lunges -- 3 sets 12/10/8
Legs Presses -- 3 sets 12/10/8
Legs Curl -- 3 sets 12/10/8
Barbells Squats-- 3 sets 12/10/8
Legs Extensions -- 3 sets 12/10/8
Calves -- 3 sets 12/10/8

Thursday:
Back Extensions -- 2 sets 15/15
Pulls Up -- 3 sets 12/10/8
Rows (opposite biceps curl) -- 3 sets 12/10/8
Abs Machine -- 3 sets 12/10/8

Friday:
Shoulders -- 3 sets 12/10/8
Ropes Pull-- 3 sets 12/10/8
Lats -- 3 sets 12/10/8
Dumbbells Forward -- 3 sets 12/10/8

Answer 3

You have to give me your stats and your goals then a workout can be determined. It would be different depending on if you are toning or trying to bulk up.
http://www.makeoverfitness.com

Answer 4

When do you do your cardio? You need to work in some cardio exercise.