Lateral Neck Muscles

Question 1

Sternocleidomastoid

Answer 1

Origin:
Manubrium of sternum & Medial portion of the Clavicle

Insertion:
Mastoid process of the temporal bone & Lateral half of the superior nuchal line

Function:
Rotation of head to opposite sides, Flexes neck

Question 2

Scalene muscles (anterior, middle, posterior)

Answer 2

Origin:
Transverse processes of cervical vertebrae

Insertion:
First two ribs

Function:
Flex & slightly rotate neck, Elevate ribs during forced inspiration

Question 3

Origin:
Manubrium of sternum & Medial portion of the Clavicle

Insertion:
Mastoid process of the temporal bone & Lateral half of the superior nuchal line

Function:
Rotation of head to opposite sides, Flexes neck

Answer 3

Sternocleidomastoid

Question 4

Origin:
Transverse processes of cervical vertebrae

Insertion:
First two ribs

Function:
Flex & slightly rotate neck, Elevate ribs during forced inspiration

Answer 4

Scalene muscles (anterior, middle, posterior)