Biceps Brachii

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Location: Anterior Upper Arm

Origin: Scapula

Insertion: Radius

Action: Flexes Arm (elbow area)

Triceps Brachii

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Location:  Posterior Upper Arm

Origin:  Proximal Humerous & Scapula

Insertion:  Posterior Ulna

Action:  Extends Elbow

Orbicularis Oculi

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Location:  Encircles Eye

Origin:  frontal, maxilla, orbit

Insertion:  Eyelid

Action:  closes eyelid

Masseter

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Location:  Jaw or Mandible

Origin: Zygomatic Arch

Insertion: Mandible

Action: Closes Jaw

Sternocleidomastoid

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Location:  Anterolateral Neck

Origin: Sternum & Clavicle

Insertion: Mandible

Action: Flexes and Rotates Head

Pectoralis Major

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Location:  Chest

Origin: Clavicle, Ribs, & Sternum

Insertion:  Proximal Humerus

Action:  Flexes, Rotates and Adducts Arm

Deltoid

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Location:  Shoulder

Origin: Clavicle & Scapula

Insertion:  Proximal Humerus

Action:  Adducts Arm

Intercostals

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Location: Between Ribs

Origin External: Inferior Ribs

Origin Internal: Superior Ribs

Insertion External: Superior Ribs

Insertion Internal: Inferior Ribs

Action External:  Elevates Ribcage

Action Internal:  Depresses Ribcage

Diaphragm

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Location:  Floor of Thoracic Cavity

Origin: Inferior Ribcage & Sternum

Insertion:  Central Tendon

Action:  Prime Mover of Inspiration

Gluteous Maximus

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Location:  Buttocks

Origin:  Illium, Sacrum, & Coccyx

Insertion:  Proximal Femur

Action:  Extends Thigh

Hamstrings

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Location:  Posterior Portion of Thigh

Origin: Ischium

Insertion:  Tibia

Action:  Flexes Knee

Quadriceps

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Location:  Anterior Portion of Thigh

Origin:  Pelvis

Insertion:  Patella & Tibia

Action:  Extends Knee

Tibialis Anterior

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Location:  Anterior of Lower Leg

Origin:  Proximal Tibia

Insertion:  Metatarsals

Action:  Dorsiflexes foot

Gastrocnemius

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Location:  Main Muscle of the Calf (posterior lower leg)

Origin: Distal Femur

Insertion: Calcaneous via Calcaneal Tendon (Achilles)

Action:  Plantar Flexes Foot