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muscle origins
head, neck and trunk
| muscles | origin and insertion |
|---|---|
| Temporalis | Origin: lateral aspect of skull Insertion: coronoid process of mandible |
| Masseter | Origin: zygomatic arch Insertion: Angle/ ramus of mandible |
| Medial Pterygoid | Origin: pterygoid process of sphenoid bone Insertion: Medial surface of mandible |
| Digastric | Origin: mandible ( anterior belly) and Mastoid of temporal (posterior belly) Insertion: hyoid |
| Mylohoid | Origin: mandible Insertion: Hyoid |
| Stylohyoid | Origin: Styloid process of temporal Insertion: Hyoid |
| Sternohyoid | Origin: Sternum Insertion: Hyoid |
| Omohyoid | Origin: Scapula Insertion: Hyoid |
| Sternocleidomastoid | Origin: Sternum, Clavicle Insertion: mastoid process of temporal |
| Splenius Capitis | Origin: Upper thoracic vertebrae Insertion: Temporal and occipital |
| Diaphragm | Origin: Inferior rib cage, lumbar vertebrae Insertion: Central tendon in thorax/abdomen |
| External intercostal | Origin: superior rib Insertion: inferior rib |
| Internal intercostal | Origin: inferior rib Insertion:superior rib |
| Pectoralis minor | Origin: ribs (3-5) Insertion: coracoid process of scapula |
| Scalenes | Origin: Cervical vertebrae Insertion: first two ribs |
| rectus abdominis | Origin: pubis Insertion: xiphoid process |
| External oblique | Origin: lower 8 ribs Insertion: iliac crest pubis |
| Internal oblique | Origin: Anterior iliac crest Insertion: lower ribs |
| Transversus abdominis | Origin: lower 6 ribs, iliac crest Insertion: linea alba |
| Serratus anterior | Origin: Ribs Insertion:Medical boarder of scapula |
| Trapezius | Origin: Occipital vertebrae Insertion: Spine and acromion of scapula, clavicle |
| Levator scapulae | Origin: transverse processes of cervical vertebrae Insertion: superior angle, medial border of scapula |
| Rhomboideus major | Origin: spinous processes of T2-T5 vertebrae Insertion: medial border of scapula |
| Rhomboideus minor | Origin: spinous processes of C7-T1 Insertion: medial border of scapula |
| Quadratus lumborum | Origin: iliac crest Insertion: last rib and lumbar vertebrae |