FCS Muscle System PT2

Muscles of the bo

Sternocleidomastoideus

Sternocleidomastoideus

Flexes and Rotates Head

Masseter

Opens the mandible (jaw)

Temporalis

Closes the mandible (jaw)

Trapezius

Extend Head, Adduct, Elevate or Depress Scapula

Latissimus Dorsi

Extend, Adduct & Rotate Arm Medially

Deltoid

Abduct, Flex & Extend Arm

Pectoralis Major

Flexes, adducts & rotates arm medially

Biceps Brachii

Flexes Elbow Joint

Triceps Brachii

Extend Elbow Joint

Rectus Abdominus

Flexes Abdomen

External Oblique

Compress Abdomen and twisting of the torso.

External Intercostals

Elevates ribs (breathing)

Internal Intercostals

Depress ribs (makes smaller)

Diaphragm

Inspiration - expands the thoracic cavity

Gluteus Maximus

Extends and Rotates Thigh Laterally

Rectus Femoris

The main muscle of your quadriceps.
Flexes Thigh, Extends Lower Leg

Gracilis (Groin muscle)

Adducts and Flexes Thigh

Sartorius

Another muscle of the quadriceps.
Flexes Thigh, & Rotates Thigh Laterally

Biceps Femoris

One of the 3 muscles that make up the hamstring. It is the largest of the three.
Extends Thigh and Flexes Lower Leg

Gastrocnemius

Extends the Foot & Flex Lower Leg

Tibialis Anterior

Flexes the Foot