FOR MARKS - Skeletal Muscles and Excercise

Sit-ups and crunches will help to strengthen these muscles.

• deltoid

• bicep femoris

• rectus abdominus

• gluteus maximus

Squats will help to strengthen these muscles.

• deltoid

• external oblique

• rectus abdominus

• gluteus maximus

Ballerinas develop these muscles by being "on pointe".

• gastrocnemis

• external oblique

• rectus abdominus

• gluteus maximus

Side crunches will target these muscles.

• deltoid

• external oblique

• latimus dorsi

• gluteus maximus

Close grip front pulldowns will target these muscles.

• bicep brachii

• external oblique

• latimus dorsi

• gluteus maximus

Barbell curls will strengthen these muscles.

• biceps brachii

• external oblique

• latimus dorsi

• deltoid

Strengthening this muscle will help to protect shoulder joints.

• biceps brachii

• external oblique

• latimus dorsi

• deltoid