Muscle Functions

Close the jaw

• achilles tendon
• Masseter
• Frontalis
• Masseter and Temporalis

Flexes thigh on hip

• Adductors
• Deltoid
• Sartorius
• Biceps brachii

Powerful adductor, adducts arm

• Deltoid
• Sartorius
• Masseter
• Biceps femoris

Everts and plantar flexes foot

• Peroneus longus (muscles)
• Gracilis
• Soleus
• Trapezius

Extends elbow

• Biceps brachii
• Triceps brachii
• Trapezius
• Deltoid

Flattens teeth against cheek

• orbicularis oris
• buccinator
• masster
• temporalis

Raises the corner of the mouth

• Zygomasticus
• Masseter
• Temporalis
• Orbicularis oris

Plantar flexes the foot, flexes knee

• Gluteus maximus
• Gastrocnemius
• Semitendinosus
• tibialis anterior

Flexes neck and rotates the head

• Deltoid
• Pectoralis major
• sternocleidomastoid
• Soleus

Flexes hip on thigh

• Sartorius
• Rectus femoris
• Vastus intermedius
• Vastus lateralis