Structures Under the Sternocleidomastoid and Root of Neck

Question 1

Subclavius

Answer 1

O: Junction of 1st rib and its costal cartilage
I: Inferior surface of middle 1/3 of clavicle
N: Nerve to Subclavius
A: Anchor and depress clavicle

Question 2

Scalenus Anterior

Answer 2

O: Transverse processes of C3-C6 vertebrae
I: 1st rib
N: Cervical VPR
A: 1. Forward flexion of neck
2. Elevate 1st rib during forced inspiration

Question 3

Longus Colli

Answer 3

3 PORTIONS
A: Vertical: Cervical bodies—> Cervical bodies
B: Superior Oblique: 1. Anterior Tubercles of C1
2. Anterior Arch
—> Anterior Tubercles of transverse processes C3, C4, C5
C: Inferior Oblique: T1-T3 vertebral bodies
—> Anterior tubercles of transverse processes C5+C6
N: Cervical VPR
A: Deep Neck Flexor

Question 4

Longus Capitus

Answer 4

O: Anterior Tubercles of Transverse Processes C3-C6
I: Basilar part of occipital bone
A: Deep neck flexor
N: Cervical VPR

Question 5

Rectus Capitus Anterior

Answer 5

O: Base of cranium just anterior to occipital condyle
I: Anterior surface of lateral mass of atlas (C1)
N: C1, C2
A: Flex Head

Question 6

Rectus Capitus Lateralis

Answer 6

O: Jugular Process of occipital bone
I:  Transverse process of atlas (C1)
N: C1
A: 1.  Flexes head
    2.  Help stabilize head