ANAT2 - Muscles + Attachments

Masseter: Zygomatic arch → Angle and ramus of mandible.

Temporalis: Temporal fossa → Coronoid process of mandible.

Lateral pterygoid: Greater wing of sphenoid → Neck of mandible.

Medial pterygoid: Medial surface of lateral pterygoid plate → Medial surface of angle of mandible.

Platysma: Fascia over deltoid and pectoralis → Lower mandible and skin of lower face.

Digastric: Digastric fossa of mandible and mastoid notch of temporal → Intermediate tendon to body of hyoid.

Stylohyoid: Styloid process → Body of hyoid.

Mylohyoid: Mylohyoid line of mandible → Body of hyoid.

Geniohyoid: Mental spine of mandible → Body of hyoid.

Genioglossus: Mental spine of mandible → Tongue and hyoid.

Hyoglossus: Greater cornu of hyoid → Lateral tongue.

Palatoglossus: Palate → Lateral tongue.

Tensor veli palatini: Scaphoid fossa of sphenoid → Palatine aponeurosis.

Levator veli palatini: Temporal bone → Palatine aponeurosis.

Palatopharyngeus: Palatine aponeurosis → Thyroid cartilage.

Musculus uvulae: Nasal spine of maxilla → Uvula.

Salpingopharyngeus: Auditory tube → Pharyngeal wall.

Stylopharyngeus: Styloid process → Pharyngeal wall.

Orbicularis oris: Encircles mouth → Skin at corners of mouth.

Buccinator: Alveolar processes of maxilla and mandible → Orbicularis oris.

Depressor anguli oris: Mandible → Corner of mouth.

Depressor labii inferioris: Mandible → Lower lip.

Mentalis: Mandible → Skin of chin.

Risorius: Fascia of parotid → Corner of mouth.

Zygomaticus major: Zygomatic bone → Corner of mouth.

Zygomaticus minor: Zygomatic bone → Upper lip.

Levator labii superioris: Maxilla → Upper lip.

Levator labii superioris alaeque nasi: Maxilla → Upper lip and nostrils.

Levator anguli oris: Maxilla → Corner of mouth.

Nasalis: Maxilla → Nasal cartilage.

Procerus: Nasal bone → Skin between eyebrows.

Depressor septi nasi: Maxilla → Nasal septum.

Corrugator supercilii: Frontal bone → Skin of eyebrow.

Upper trapezius: Occipital bone → Lateral clavicle, acromion.

Levator scapulae: C1–C4 vertebrae → Superior angle of scapula.

Splenius capitis: C7-T4 vertebrae → Mastoid process and occipital bone.

Splenius cervicis: T3-T6 vertebrae → Transverse processes of C1-C3.

Erector spinae:

• Spinalis: Spinous processes of vertebrae → Spinous processes of more superior vertebrae.

• Longissimus: Transverse processes → Ribs and mastoid process.

• Iliocostalis: Iliac crest → Ribs.

Multifidus: Sacrum → Spinous processes of superior vertebrae.

Rotatores: Transverse processes → Spinous processes of next vertebra.

Interspinales: Spinous processes → Adjacent spinous process.

Intertransversarii: Transverse processes → Adjacent transverse process.

Rectus capitis posterior major: Spinous process of C2 → Occipital bone.

Rectus capitis posterior minor: Posterior tubercle of C1 → Occipital bone.

Obliquus capitis inferior: Spinous process of C2 → Transverse process of C1.

Obliquus capitis superior: Transverse process of C1 → Occipital bone.

Sternohyoid: Manubrium and clavicle → Body of hyoid.

Sternothyroid: Manubrium → Thyroid cartilage.

Thyrohyoid: Thyroid cartilage → Body of hyoid.

Omohyoid: Scapula → Hyoid.

Sternocleidomastoid (SCM): Manubrium/clavicle → Mastoid process.

Scalene: C2-C7 vertebrae → Ribs 1 and 2.

Longus capitis: C3-C6 transverse processes → Occipital bone.

Longus colli: C3-T3 vertebrae → C1-C6 vertebrae.

Rectus capitis anterior: C1 → Occipital bone.

Rectus capitis lateralis: C1 → Occipital bone.

Latissimus dorsi: Spinous processes of T6-L5, iliac crest → Humerus.

Pectoralis major: Clavicle, sternum, ribs → Humerus.

Pectoralis minor: Ribs 3-5 → Coracoid process of scapula.

Serratus anterior: Upper 8 ribs → Medial border of scapula.

Serratus posterior superior: T1-T3 vertebrae → Ribs 2-5.

Serratus posterior inferior: T9-T12 vertebrae → Ribs 9-12.

Erector spinae: Iliac crest, sacrum → Ribs and vertebrae.

Levator costarum: Transverse processes of C7-T11 → Ribs below.