Muscular System Muscles Flashcards
Temporalis
Elevates and Retracts Mandible
Masseter
Elevates and Protracts Mandible
Orbicularis Oculi
Closes Eyes
Orbicularis Oris
Closes and Purses Lips
Frontalis
Raises Eyebrows, Wrinkles Forehead
Buccinator
Compresses Cheek
Sternocleidomastoid
Flexion of head when both sides are contracted; rotate head to opposite shoulder when only one side is contracted
Splenius Capitis
Extend and Hyperextend head
Rectus Abdominus
Flexes Vertebral Column
External Oblique
Compresses abdominal wall, trunk rotation and lateral flexion
Internal Oblique
Compresses abdominal wall, trunk rotation and lateral flexion
Transversus Abdominis
Compresses Abdomen
External Intercostals
Elevates Rib Cage During Inspiration
Internal Intercostals
Depresses Rib Cage During Forces Exhalation
Diaphragm
Prime move of inspiration, increases vertical dimensions of thorax
Pectoralis Minor
Draws Scapula Forward and Downward
Trapezius
Elevates and Retracts Scapula
Serratus Anterior
Draws Scapula Forward
Latissimus Dorsi
Extends and Adducts Arm
Deltoid
Abducts, flexes and Extends Arm
Pectoralis Major
Flexes, Adducts, and Medially Rotates Arm
Triceps Brachii
Extends Forearm at Elbow
Biceps Brachii
Flexes Forearm at Elbow, Supinator of Forearm, Rotates Hand Laterally
Brachialis
Flexes Forearm at Elbow
Brachioradialis
Synergist in Forearm Flexion
Flexor Carpi Radialis
Flexes Wrist, Adducts Hand
Palmaris Longus
Weak Flexor of Wrist
Pronator Teres
Pronates Forearm
Flexor Carpi Ulnaris
Flexes Wrist, Adducts Hand
Extensor Carpi Radialis
Extends Wrist, Abducts Wrist
Extensor Digitorium
Finger Extension
Extensor Carpi Ulnaris
Extends Wrist, Adducts Wrist
Sartorius
Flexes and laterally rotates thigh, helps you sit cross-legged flex leg and thigh, abducts thigh, rotates thigh laterally, rotates leg medially, weak flexor of knee
Adductor Magnus
Adducts, Flexes and Medially Rotates Thigh
Adductor Longus
Adducts, Flexes and Medially Rotates Thigh
Iliacus
Flexion of Thigh
Psoas Major
Flexion of Thigh
Pectineus
Adducts and Flexes Thigh
Gracilis
Adducts Thigh and Flexes Leg at Knee
Vastus Lateralis
Extends Knee
Vastus Intermedius
Extends Knee
Vastus Medialis
Extends Knee
Rectus Femoris
Extends Knee and Flexes Thigh at Hip Extends Leg at Knee
Tensor fascia Latae
Flexes and Abducts Thigh and Rotates Thigh Mediallyu
Gluteus Maximus
Extends Thigh at Hip
Gluteus Medius
Abducts Thigh
Biceps Femoris
Extends Thigh at Hip and Flexes Knee
Semitendinosus
Extends Thigh at Hip and Flexes Knee
Semimembranosus
Extends Thigh at Hip and Flexes Knee
Tibialis Anterior
Dorisflexion of Foot
Fibularis Longus
Plantar Flexion of Foot, Flexes Leg at Knee
Soleus
Plantar Flexion of Foot
Extensor Digitorium Longus
Extension of Toes
Gastrocnemius
Plantar Flexion of Foot, Flexes Leg at Knee
Flexor Digitorium Longus
Plantar Flexes Foot, Flexes Toes