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28 Cards in this Set

  • Front
  • Back

Epicranius

Origin: epicranial aponeurosis



Insertion: skin of the eyebrows



Action: raises eyebrows

Temporalis

Origins: temporal fossa



Insertion: coronoid process of mandible



Actions: closes jaw; retracts mandible

Masseter

Origins: zygomatic arch and maxilla



Insertions: angle and Ramos of mandible



Action: closes jaw

Sternocleidomastoid

Origins: manubrium of sternum and medial clavicle



Insertion: mastoid process of temporal bone



Actions: neck flexion; rotates head towards shoulder

Orbicularis occuli

Origins: frontal bone and maxilla



Insertions: encircles orbit; tissue of eyelid



Action: closes eye

Orbicularis oris

Origin: muscles around mouth



Insertions: encircles mouth; corners of mouth



Action: closes lips

Rectus abdominis

Origins: pubic crest and symphysis



Insertions: xiphoid process; costal cartilage of ribs 5-7



Actions: flexes and rotates vertebral column

Pectoralis major

Origins: clavicle; sternum; cartilage of ribs 1-6



Insertion: intertubercular sulcus of humerus



Actions: flexes and adducts shoulder; medially rotates humerus

Pectoralis major

Origins: clavicle; sternum; cartilage of ribs 1-6



Insertion: intertubercular sulcus of humerus



Actions: flexes and adducts shoulder; medially rotates humerus

External oblique

Origins: anterior surface of last 8 ribs



Insertions: linea alba; pubic crest and tubercles; iliac crest



Actions: flexes and rotates vertebral column; compresses abdomen

Deltoid

Origins: lateral clavicle; scrim ion and spine of scapula



Insertion: deltoid tuberosity of humerus



Action: shoulder abduction

Trapezius

Origins: occipital bone; spine of c7; all thoracic vertebrae



Insertions: acromion and spine of scapula; lateral clavicle



Actions: raises, rotates, retracts, and stabilizes scapula

Latissimus dorsi

Origins: spinous process of t7-L5 vertebrae; last 4 ribs; iliac crest



Insertion: intertubercular sulcus of humerus



Actions: extends, adducts, and medially rotates humerus

Subscapularis

Origin: Subscapularis fossa of scapula



Insertion: lesser tubercle of humerus



Action: medially rotates humerus

Subscapularis

Origin: Subscapularis fossa of scapula



Insertion: lesser tubercle of humerus



Action: medially rotates humerus

Supraspinatus

Origin: supraspinous fossa of scapula



Insertion: greater tubercle of humerus



Action: abducts humerus; stabilizes shoulder

Infraspinatus

Origin: infraspinous fossa of scapula



Insertion: greater tubercle of humerus



Action: lateral rotation of humerus

Rhomboid minor

Origins: spinous process of C7 and T1



Insertion: medial border of scapula



Actions: retracts and stabilizes scapula

Internal intercostals

Origin: superior border of rib below



Insertion: inferior border of rib above



Action: depresses rib cage during forced expiration

External intercostals

Origin: inferior border of rib above



Insertion: superior border of rib below



Action: elevates rib cage during inspiration

Serratus anterior

Origins: lateral aspect of ribs 1-8



Insertion: vertebral border of anterior scapula



Action: protracts and rotates scapula

Pectoralis minor

Origin: anterior surface of ribs 3-5



Insertion: coracoid process of scapula



Action: draws scapula forward and inferiorly

Rhomboid major

Origin: spinous process of T2-T5



Insertion: medial border of scapula



Actions: retracts and stabilizes scapula

Transverse abdominis

Origins: inguinal ligament; iliac crest; cartilage of last 6 ribs; lumbar fascia



Insertions: linea alba and pubic crest



Action: compresses abdomen

Teres minor

Origin: lateral margin of scapula



Insertion: greater tubercle of scapula



Action: lateral rotation of humerus

Teres major

Origin: posterior inferior angle of scapula



Insertion: intertubercular sulcus of humerus



Actions: extends, medially rotates, and adducts humerus

Diaphragm

Origins: inferior border of rib and sternum, cartilage of last 6 ribs, lumbar vertebrae



Insertion: central tendon



Action: flattens to increase thoracic volume for inspiration

Internal oblique

Origins: lumbar fascia, iliac crest, and inguinal ligament



Insertions: linea alba, pubic crest, and costal cartilage of last 3 ribs



Actions: flexes and rotates vertebral column; compresses abdomen