The flashcards below were created by user
servinggod247
on FreezingBlue Flashcards.
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Temporalis
- Origin: Temporal fossa
- Insertion: Coronoid process of mandible
- Action : Closes jaw
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Masseter
- Origin: Zygomatic arch and maxilla
- Insertion: Angle and ramus of mandible
- Action: Prime mover of jaw closure
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Trapezius
- Origin: occipital bone; ligamentum nuchae; spines of c7 and all thorasic vertebrea
- Insertion: Scapula and clavical
- Action: Extends head
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Deltoid
- Insertion: clavical (front) back (scapula)
- Origin: humerous
- Action: prime mover of arm abduction
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Triceps brachii
- Origin: humerous
- Insertion: ulna
- Action: forearm extensor
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Biceps brachii
- Origin: coracoid process
- Insertion: radial tuberosity
- Action: flexion of elbow
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Brachialis
- Origin: humerous
- Insertion: ulna
- Action: A major flexor of forearm
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Pronator teres
- Origin: Humerus
- Insertion: radius
- Action: pronate forearm
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Brachioradialis
- Origin: humerus
- Insertion: radius
- Action: synergist in forearm flexion
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Flexor carpi radialis
- Origin: Humerus
- Insertion: Metacarples
- Action: Powerful flexor of wrist
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Palmaris longus
- Origin: humerus
- Insertion: palmar aponeurosis
- Action: flexes wrist
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Iliopsoas
- Origin: sacrum
- Insertion: Femur
- Action: flex thigh
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Pectineus
- Origin: pubis
- Insertion: femur
- Action: Adducts, flexes, and medially rotates thigh
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Rectus femoris
- Origin: iliac spine
- Insertion: patella
- Action: extends knee
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Vastus lateralis
- Origin: linea aspera
- Insertion: patella
- Action: stablizes knee
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Vastus medialis
- Origin: linea aspera
- Insertion: patella
- Action: Extends knee
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Extensor digitorum longus
- Origin: fibula
- Insertion: phalanges of toes
- Action: prime mover of toe extension
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Tibialis anterior
- Origin: tibia
- Insertion:metatarsal
- Action: inverts foot
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Soleus
- Origin: fibula
- Insertion: calcaneus
- Action: Plantar flexion
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Gastrocnemius
- Origin: femur
- Insertion: Calcaneus
- Action: Plantar flexion
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Gracilis
- Origin: pubis
- Insertion: tibia
- Action: Adducts thigh
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Adductor longus
- Origin: pubis
- INsertion: linea aspera
- Action: adduct and medially rotate and flex thigh
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Sartorius
- Origin: iliac spine
- Insertion: tibia
- Action: flexes knee
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Tensor fasciae latae
- Origin: iliac spine
- Insertion: iliotibial tract
- Action: Stedies trunk
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Transversus abdominis
- Origin: Inguinal ligament, iliac crest, cartilages of last five ribs, and lumbar fascia
- Insertion: Linea alba and pubic crest
- Action: Compresses abdominal contents
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Internal oblique
- Origin: Lumbar fascia, iliac crest, and indguinal ligament
- Insertion: Linea alba, pubic crest, and ribs
- Action: trunk toation and lateral flexion
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External oblique
- Origin: ribs
- Insertion: Linea alba, pubic crest and tubercles, and iliac crest
- Action: compresses abdominal wall
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Rectus abdominis
- Origin: Pubic crest and symphasis
- Insertion: ribs
- Action: Flexes and rotates vertebral column
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Intercostals
- Origin: rib
- INsertion: rib
- Action: elevate and debress rib cage
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Serratus anterior
- Origin: Ribs
- Insertion: Scapula
- Action: Prime mover to protract and hold scapula against chest wall; Rotates scapula
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Pectoralis major
- Origin: sternum
- Insertion: humeros
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Pectoralis minor
- Origin: ribs
- Insertion: Scapula
- Action: With ribs fixed, draws scapula forward and inferiorly
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Sternocleidomastoid
- Origin: Manubrium of sternum and medial portion of clavical
- Insertion: Mastoid process of temporal bone and superior nuchal line of occipital bone
- Action: flexion of neck forward
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Sternohyoid
- Origin: clavical
- Insertion: hyoid bone
- Action: depresses larynx and hyoid bone
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Platysma
- Origin: Fascia of chest (over pecs) and deltoid
- Insertion: Lower margin of mandible, skin, and muslces at corner of mouth
- Action: Tenses skin of neck
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Orbicularis oris
- Origin: Arises indirectly from maxilla and mandible
- Insertion: encircles mouth
- Action: Closes lips
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Zygomaticus
- Origin: Zygomatic bone
- Insertion: Skin and muscle at corner of mouth
- Action: raises lateral corners of mouth upward
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Orbicularis oculi
- Origin: Frontal and maxillary bones and ligaments around orbit
- Insertion: Encircles orbit and inserts in tissue of eyelid
- Action: closes eyes
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Epicranius, frontal belly
- Origin- galea aponeurotica (cranial aponeurosis)
- Insertion- skin of eyebrows and root of nose
- Action: raises eyebrows
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Triceps brachii
- Origin: humerous
- Insertion: ulna
- Action: A major flexor of forearm
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Brachialis
- Origin: Humerous
- Inserton: ulna
- Action: A major flexor of forearm
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Brachioradialis
- Origin: Humerous
- Insertion: Radius
- Action: Synergist in forearm flexion
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Extensor carpi radialis longus
- Origin: humerus
- Insertion: metacarple
- Action: Extends and abducts wrist
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Flexor carpi ulnaris
- Origin: ulna
- Insertion: metacarples
- Action: adducts hand
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Extensor carpi ulnaris
- Origin: ulna
- Insertion: metacarples
- Action: extends and abducts wrist
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Extensor digitorum
- Origin: humerous
- Insertion: phalanges
- Action: flare fingers
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Fibularis longus
- Origin: fibula
- Insertion: metatarsals
- Action: everts foot
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Calcaneal tendon
(Alchilles tendon)
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Semimembranosus
- Origin: isheal tuberosity
- Insertion: femur
- Action: extends thigh
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Semitendinosus
- Origin: Ischial tuberosity
- Insertion: femur
- Action: extends thigh
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Biceps femoris
- Origin: femur
- INsertion: tibia
- Action: extends thigh
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Adductor magnus
- Insertion: ishal tuberosity
- INsertion: femur
- Action: adduct, medially rotate, and flex thigh
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Gluteus maximus
- Origin: coccyx
- INsertion: femur
- Action: powerful thigh extensor
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Gluteus medius
- Origin: ilium
- Insertion: femur
- Action: Abducts and medially rotates thigh
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Latissimus dorsi
- Origin: thorasic vertebrea, lumbar vertebrae, ribs, iliac crest
- Insertion: humerus
- Action: Prime mover of arm extension
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Rhomboid major
- Origin: vertebrea
- Insertion: scapula
- Action: stabalize scapula
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Teres major
- Origin: scapula
- Insertion: humerous
- Action: extends, medially rotates, and adducts humerus
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Infraspinatus
- Origin: scapula
- Insertion: humerous
- Action: stabalizes shoulder
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Epicranius, occipital belly
- Origin: occipital and temporal bones
- Insersion: galea aponeurotica
- Action: fixes aponeurosis and pulls scalp postarily
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