neck muscles.txt

O -Base of styloid process

I -hyoid bone

In -Facial nerve [VII]

F -Elevates hyoid bone

O -Digastric fossa on lower inside of mandible

I -Hyoid bone

In - Mylohyoid nerve from inferior alveolar branch of mandibular nerve [V3]

F -Elevates hyoid bone

O -Mastoid notch on medial side of mastoid process of temporal bone

I -Hyoid bone

In -Facial nerve [VII]

F -Elevates hyoid bone

O -Inferior mental spine on inner surface of mandible

I -Hyoid bone

In -Branch from anterior ramus of C1 (carried along the hypoglossal nerve [XII])

F -Elevates hyoid bone

O -Mylohyoid line on mandible

I -Hyoid bone

In -Mylohyoid nerve from inferior alveolar branch of mandibular nerve [V3]

F - Elevates hyoid bone

O - Posterior aspect of sternoclavicular joint and adjacent manubrium of sternum

I -Hyoid bone

In -Anterior rami of C1 to C3 through the ansa cervicalis

F -Depresses hyoid bone

O -Superior border of scapula medial to suprascapular notch

I -Hyoid bone

In -Anterior rami of C1 to C3 through the ansa cervicalis

F - Depresses hyoid bone

O - Posterior surface of manubrium of sternum

I -Hyoid bone

In -Anterior rami of C1 to C3 through the ansa cervicalis

F -Depresses hyoid bone

O -Oblique line on lamina of thyroid cartilage

I -Hyoid bone

In -Fibers from anterior ramus of C1 carried along hypoglossal nerve [XII]

F -Depresses hyoid bone

• Sternal head
• O -Upper part of anterior surface of manubrium of sternum
• I -Lateral one-half of superior nuchal line

• Clavicular head
• O -Superior surface of medial one-third of clavicle
• I -Lateral surface of mastoid process

• In -Accessory nerve [XI] & branches from anterior rami of C2-C4
• F -Individually-will tilt head toward shoulder on same side rotating head to turn face to opposite side; acting together-draw head forward

• Rectus capitis posterior major - extends head
• Rectus capitis posterior minor - extends head
• Obliquus capitis superior - extends head
• Obliquus capitis inferior - rotates face to same side

• In -posterior rami of C1

• Rectus capitis anterior
• Rectus capitis lateralis
• Longus colli
• Longus capitis

In -anterior rami of cervical nerves