Practical 3 Flashcards by Branden Cater

Orbicularis oris

Compresses and protrudes lips

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Zygomaticus

Elevates corner of mouth

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Platysma

Tenses skin of neck, depresses mandible

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Frontalis

Elevates eyebrows

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Occipitalis

Tenses and retracts scalp

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Buccinator

Compresses cheeks

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Masseter

Elevates mandible

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Temporalis

Elevates mandible

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Sternocleidomastoid

Flex and rotate neck to opposite side
If both are contracted flexes neck
Origin: sternum and clavicle
Insertion: mastoid process

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Erector spinae: iliocostalis

Extend vertebral column

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Erector spinae: longissimus

Extend vertebral column

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Erector spinae: spinalis

Extend vertebral column

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Rectus abdominis

Flexes trunk, compresses abdomen

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Transverse abdominis

Stabilizes spine, compresses abdomen

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External oblique

Flex trunk, rotates trunk

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Internal oblique

Flex trunk, rotates trunk

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Trapezius

Elevate, retract and depress scapula
Origin: cervical and thoracic vertebra, occipital bone
Insertion: scapula and clavicle

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Rhomboid minor

Adducts scapula

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Rhomboid major

Adducts scapula

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Levator scapulae

Elevates scapula

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Serratus anterior

Protracts scapula

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Pectoralis minor

Stabilizes scapula

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Deltoid

Abduction at shoulder
Origin: scapula and clavicle
Insertion: humerus

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Pectoralis major

Addiction and flexion of shoulder
Origin: ribs, sternum, and clavicle
Insertion: humerus

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Lattisimus dorsi

Adduction and extension shoulder Origin: thoracic and lumbar vertebra, and ilium Insertion: humerus

Coracobrachialis

Adduction and flexion of shoulder

Supraspinatus

Abduction of shoulder

Infraspinatus

Lateral rotation of shoulder

Teres minor

Lateral rotation of shoulder

Subscapularis

Medial rotation of shoulder

Teres major

Adduction and extension of shoulder

Biceps brachii (long and short head)

Flexion and supination elbow Origin long head: scapula Short head: coracoid process Insertion: radius

Brachialis

Flexion elbow

Triceps brachii (lateral, long and medial head)

Extension elbow Origin long head: scapula Medial and lateral head: humerus Insertion: olecranon process

Orbicularis oculi

Closes eye

Pronator teres

Pronation forearm

Flexor Capri radialis

Flexion of wrist

Palmaris longus

Flexion wrist

Flexor Capri ulnaris

Flexion of wrist

Flexor digitorum superficialis

Flexion wrist and fingers

Flexor digitorum profundus

Flexion wrist and fingers

Brachioradialis

Flexion elbow

Extensor Capri radialis longus

Extension wrist

Extensor Capri radialis brevis

Extension wrist

Extensor digitorum

Extension wrist and fingers

Extensor digit minimi

Extension finger 5

Extensor Capri ulnaris

Extension wrist

Abductor pollicis longus

Abduction thumb

Extensor pollicis longus

Extension thumb

Extensor pollicis brevis

Extension thumb

Gluteus Maximus

Extension at hip Origin: ilium and sacrum Insertion: iliotibial tract

Gluteus medius

Abduction at hip Origin: ilium Insertion: greater trochanter

Gluteus minimus

Abduction at hip Origin: ilium Insertion: greater trochanter

Iliopsoas (iliacus & psoas major)

Hip flexion

Tensor fascia latae

Flexion at hip, stabilizes hip and knee

Adductor Magnus

Adduction of hip

Adductor longus

Adduction of hip

Gracilis

Adduction of hip, Flexion of knee

Biceps femoris (long and short head)

Flexion of knee, extension of hip Origin: long head: ischium Short head: femur Insertion: tibia

Semimembranosus

Flexion of knee, extension of hip Origin: ischium Insertion: tibia

Semitendinosus

Flexion of knee, extension of hip Origin: ischium Insertion: tibia

Sartorius

Flexion of knee and hip

Rectus femoris

Extension of knee, flexion of hip Origin: ilium Insertion: tibia

Vastus intermedius

Extension knee Origin: femur Insertion: tibia

Vastus medialis

Extension knee Origin: femur Insertion: tibia

Vastus lateralis

Extension knee Origin: femur Insertion: tibia

Tibialis anterior

Dorsiflexion ankle

Extensor digitorum longus

Extension toes 2-5

Extensor hallucis longus

Extension great toe

Fibularis longus

Eversion of ankle

Fibularis brevis

Eversion of ankle

Gastrocnemius

Plantarflexion ankle Origin: femur Insertion: calcaneus

Soleus

Plantarflexion ankle

Flexor digitorum longus

Flex toes 2-5

Tibialis posterior

Plantarflexion ankle

Flexor hallucis longus

Flexion great toe