Origin: digastric fossa of mandible

Insertion: Intermediate tendon into body & greater horn of hyoid bone

Action: depresses mandible agaisnt resistance, elevates hyoid

Innervation: mylohyoid nerve from V3

Origin: notch on mastoid process

Insertion: intermediate tendon to body & greater horn of hyoid

Action:depresses mandible against resistance

Innervation: facial branch to post. belly & stylohyoid

Origin: mylohyoid line of mandible

Insertion: body of hyoid

Action: elevated floor of mouth & hyoid

Innervation: mylohyoid nerve from V3

Origin: styloid process

Insertion: body of hyoid

Action: elevated hyoid

Innervation: facial nerve branch to post. belly of digastric & stylohyoid

Origin: inferior mental spine of the mandible

Insertion: body of hyoid

Action: elevates hyoid

Innervation: C1 via hypoglossal

Origin: manubrium of sternum & median clavicle

Insertion: body of hyoid

Action: depresses & stabilizes hyoid

Innervation: ansa cervicalis

Origin: posterior surface of manubrium of sternum

Insertion: oblique line of thryoid cartilage

Action: depresses & stabilizes hyoid

Innervation: ansa cervicalis

Origin: oblique line of thryoid cartilage

Insertion: inferior border of hyoid

Action: depresses/stabilizes hyoid, elevates larynx

Innervation: C1 via hypoglossal nerve

Origin: upper border of scapula near scapular notch

Insertion: intermediate tendon

Action: depresses/stabilizes hyoid

Innervation: ansa cervicalis

Origin: intermediate tendon

Insertion: lower border of hyoid

Action: depresses/stabilizes hyoid

Innervation: ansa cervicalis