Muscles of the Neck (INTERMEDIATE LAYER)

1. Splenius capitis
2. Scalenius muscles

Intermediate Layer

AMP

- Anterior
- Medius
- Posterior

Scalenius muscles

Splenius capitis

Beneath the trapezius

ligamentum nuchae

The origin of the Splenius Capitis muscle includes the lower part of the _______ _______.

cervical spine

Another origin of the Splenius Capitis muscle is the lower _______ _____

MS

■ Mastoid process
■ Superior nuchal line

insertions of the Splenius capitis

extends

When acting bilaterally, the Splenius Capitis muscle _______ the head.

flexes

When acting individually, the Splenius Capitis muscle _______ the head laterally.

Scalenius anterior

muscle of respiration

C3 to C6

The origin of the Scalenius Anterior muscle is the transverse process of __ to __

scalene tubercle of 1st rib

what is the insertion of the scalenius anterior?

participates in forced inspiration by elevating the ribs and sternum

what is the action of the scalenius anterior?

c2 to c7

The origin of the Scalenius Medius muscle is the transverse process of __ to __

superior aspect of 1st rib

what is the insertion of the scalenius medius?

flexes the neck

what is the action of the scalenius medius and posterior?

superior aspect of 2nd rib

what is the insertion of the scalenius posterior?

c5 to c6

The origin of the Scalenius Posterior is the transverse process of __ to __

Levator scapulae

Elevate the scapula

c1 to c4

The origin of the Levator scapulae is the transverse process of __ to __

Superior portion of vertebral border of scapula

what is the insertion of the Levator scapulae?

Elevates and rotates the scapula

action of the levator scapulae