Anatomy-Skeletal Muscle
Terms
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- Masseter
- O - Zygomatick Arch I - Ramus of mandible Elevates mandible & Closes jaw
- Orbicularis oculi
- Closes the eye
- Orbicularis Oris
- Compresses - purses lips
- Temporalis
- O. frontal and parietal bones I. coronoid process of temporal bonesA. Elevates mandible & CLoses jaw
- Frontalis (frontal belly of occipitofrontalis
- Tenses & retracts scalp
- Sternocleidomastoid
- O. manubrium of sternum & clavicle I. mastoid process of temporal bones A. Flex neck
- Pectoralis Major
- O. Body of sternum, Ribs 2-6, clavicle I. Greater tubercle of humerus A. Flexion, adduction of at shoulder
- Pectoralis minor
- O. Ribs 3-5 I. Coracoid process of scapula A. Depresses & protacts shoulder, rotates scapula
- Trapezius
- A. elevate, rect depress or rotate scapula upward
- Internal intercostal muscles
- A. Depress ribs
- External intercostal muscles
- Elevates ribs
- Diaphram
- A. Contracts. - expands thoracic cavity
- Serratus anterior
- A. Protracts shoulder, rotates scapular
- rectus abdominis
- A. Depresses ribs
- External oblique
- A. Compresses abdomen
- Transverse abdominis
- A. Compresses abdomen
- Latissimus dorsi
- O. Spinous process of inferior thoracic and L1-5 I. humerus A. Adduct, medially rotates & extends arm at shoulder
- Rhomboids - Mino
- O. spinous proceses of C7 - T5 I. vertebral border of scapula A. Adducts & performs downward rotation of scapula
- Rhomboids - ajor
- O. Spinous Vertebral border of Scapula I. Vertebral border of scapula A. Adducts & performs downward rotation of scapula
- supraspinatus (SITS)
- O. supraspinous fossa of scapula I. greater tubercle of humerus A. Abducs arm at shoulder
- infraspinatus (SITS)
- infraspinous fossa of scapula I. greater tubercle of humerus A. Laterally roates arm at shoulder
- teres minor (SITS
- O. lateral border of scapula I. greater tubercle of humerus A. Laterally rotates arm at shoulder
- teres major
- O. inferior angle of scapula I. humerus A. Adducts, medially rotates & extends arm at shoulder.
- subscapularis (SITS
- O. subscapular fossa I. lesser tubercle of humerus A. Medial rotation at shoulder
- levator scapulae
- A. Elevates scapula