Basic Muscle Chart & Muscle Function

BASIC MUSCLE CHART & MUSCLE FUNCTION
1. GRACILIS – (back muscle) action: extends hip and hock joints.
2. SARTORIUS (pencil or whip muscle) – action: flexes hip and draws leg forward.
3. RECTUS FEMORIS – action: extends stifle.
4. & 5. BICEPS FEMORIS (upper & lower biceps) – action: extend hip, stifle and hock.
6. SEMITENDINOSUS (hamstring) – action: extend hip, stifle and hock.
7. LATERAL VASTUS (thigh) – action: extends stifle.
8. & 9. TENSOR FASCIA LATA (triangle or hip support) – action: flexes hip and extends stifle.
10. SACROCOCCYGEAL – action: raises and moves tail sideways.
11. GLUTEAL (hip muscle) – action: extends hip joint, stabilizes leg against sideways movement.
12. LONGISSIMUS DORSI (lumbar muscle) – action: raises front and rear of spine.
13. QUADRATES LUMBORUM (coupling) – action: flexes spine or hip joint.
14. DEEP PECTORAL (chest muscle) – action: draws body forward and leg backward.
15. LONGISSIMUS DORSI – THORACIC PORTION – action: raises spine.
16. LATISSIMUS DORSI (fan muscle) – action: draws the leg backwards.
17. INFRASPINATUS – action: flexes or extends shoulder joint.
18. UPPER TRICEPS (pin, egg or monkey muscle) extends elbow joint.
19. TRAPEZIUS (saddle muscle) – action: raises the leg and draws it forward.
20. TRICEPS (lateral portion) – action: extends the elbow joint when shoulder blade is fixed.
21. TRICEPS (long head) – action: extends the elbow joint when shoulder blade is fixed.
22. BRACHIOCEPHALIC (chest coupling) – action: draws leg forward and inward.
23. DELTOID (upper portion) – action: flexes shoulder joint and raises elbow.
24. DELTOID (lower portion) – action: flexes shoulder joint and raises elbow.
25. OMOTRANSVERSARIUS – action: helps extend the leg.
26. BRACHIOCEPHALIC (upper portion) – action: fixes or flexes the neck.
27. SERRATUS – action: moves shoulder forwards and backwards during leg movement.