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20 Cards in this Set

  • Front
  • Back
Facial expression muscles originate here
Superficial fascia or bones of the skull
Facial expression muscles insert here
Superficial fascia
Facial expression muscles are innervated by this
Action of Frontalis muscle
wrinkles skin of forehead
Action of orbicularis oculi
close eye
Action of zygomaticus major
"smile" muscle
Action of Orbicularis oris
Close mouth
Muscles of masstication innervate here
Muscles of masstication have their insertion here
Ramus of mandible
Origin: lateral skull
Action: elevate mandible
Origin: zygomatics
Action: elevate mandible
Origin: clavicle and sternum
Insertion: mastoid process
Action: flex head/neck
Innervation: CN XI
Origin: Occipital bone, superior vertebrae (ligamentum nuchae)
Insertion: acromion, spine of scapula, clavicle
Action: adduct shoulder
Innervation: CN XI
Origin: transverese processes of cervical vertebrae
Insertion: superior medial border of scapula
Action: elevate shoulder
Innervation: C3-C5 (dorsal scapular)
Levator scapulae
Origin: Vertebral spinous processes of thorax
Insertion: medial border of scapula
Action: adduct shoulder
Innervation: C5 (dorsal scapular)
Origin: ribs 1-8
Insertion: medial border of scapula
Action: stabilizes scapula
Innervation: Long thoracic nerve (C5-C7)
Serratus anterior
How innervation for the serratus anterior is unique
Superficial not deeps
-Allows notation on scapula*
Origin: inferior angle of scapula
Insertion: intertubercular groove of humerus (between greater and lesser tubercle)
Action: adduction and medial rotation of shoulder
Innervation: Inferior subscapular nerve (C5-C6)
Teres major
Origin: lumbar vertebrae (lumbothoracic fascia)
Insertion: proximal humerus
Action: adduction, medial rotation of shoulder
Innervation: Thoracodorsal nerve (C6-C8)
Fan shaped muscle
Latissimus dorsi
Origin: Sternum/ribs (2-5)
Insertion: proximal humerus (greater tubercle and intertubercular groove)
Action: adduction/medial rotation
Innervation: Lateral and medial pectoral nerves (C5-T1)
Pectoralis MAJOR