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Muscle Fuctions

Anatomical Names of Muscles and Their Functions

QuestionAnswer
Frontalis Wrinkles forehead and elevates eyebrow
Corrugator supercilii Draws eyebrow to midline
Orbicularis oculi Closes eye
Orbicularis oris Closes mouth
Buccinator Compresses cheek
Zygomaticus Elevates corner of mouth
Risorius Draws corner of mouth laterally
Mentalis Protrudes lower lip
Platysma Depresses mandible and lower lip
Massetar Elevates mandible
Temporalis Elevates mandible
Sternocleidomastoid Rotates head, flexes neck
Trapezius Extends neck, moves scapula
Digastric Opens mouth, elevates hyoid
Mylohyoid Elevates hyoid and floor of mouth
Geniohyoid Elevates hyoid and protracts tongue
Stylohyoid Elevates retracts tongue
Sternohyoid Depresses hyoid
Sternothyroid Depresses thyroid cartilage
Thyrohyoid Depresses hyoid bone, elevates larynx
External intercostals Elevates ribs (inspiration)
Internal intercostals Depresses ribs (expiration)
Rectus abdominis Flexes vertebral column, compresses abdomen
External oblique Compresses abdomen, lateral trunk rotation
Internal oblique Compresses abdomen, lateral trunk rotation
Transversus abdominis Compresses abdomen, lateral trunk rotation
Serratus anterior Pull scapula forward and down
Levator scapulae Elevates scapula
Rhomboideus major & minor Adducts scapula
Pectoralis major Flexes, adducts, and rotates arm medially
Pectoralis minor Depresses and protracts scapula
Deltoid Abducts arm
Latissimus dorsi Extends, adducts, and rotates arm medially
Teres major Extends, adducts, and rotates arm medially
Teres minor Rotates arm laterally
Biceps brachii Flexes forearm
Brachialis Flexes forearm
Brachioradialis Flexes forearm
Pronator teres Pronates forearm
Supinator Supinates forearm
Triceps brachii Extends forearm
Flexor carpi radialis Flexes and abducts hand
Flexor carpi ulnaris Flexes and adducts hand
Palmaris longus Flexes hand and digits
Extensor carpi radialis longus Extends and abducts hand
Extensor carpi ulnaris Extends and adducts hand
Extensor digitorum Extends hand and digits
Gluteus maximus Extends and rotates thigh laterally
Gluteus medius Abducts and rotates thigh medially
Gluteus minimus Abducts and rotates thigh medially
Tensor fasciae latae Abducts and rotates thigh medially
Adductor longus Flexes, adducts, and rotates thigh medially
Adductor brevis Flexes, adducts, and rotates thigh
Adductor magnus Flexes, adducts, and rotates thigh
Gracilis Flexes leg, adducts thigh
Sartorius Flexes leg and thigh, abducts and rotates thigh laterally
Biceps femoris Flexes leg, extends and laterally rotates thigh
Semimembranosus Flexes leg, extends and medially rotates thigh
Semitendinosus Flexes leg, extends and medially rotates thigh
Rectus femoris Extends leg and flexes high
Vastus medialis Extends leg
Vastus lateralis Extends leg
Vastus intermedius Extends leg
Gastrocnemius Plantar flexes foot, flexes leg
Soleus Plantar flexes foot
Peroneus longus Plantar flexes and everts foot
Peroneus brevis Plantar flexes and everts foot
Peroneus tertius Dorsiflexes and everts foot
Tibialis anterior Dorsiflexes and inverts foot
Flexor digitorum longus Flexes toes
Extensor digitorum longus Extends toes
Created by: scar29