Neck

Question 1

Levator Scapulae

Answer 1

O: C1-C4 (Transverse Processes)
I: Superior Angle of Scapula

Action: Scapula Elevation

Synergist: Upper Trapezius

Antagonist: Lower Trapezius, Serratus Anterior

Question 2

Scalenes

Answer 2

O: C1-C7 (Transverse Processes)
I: Ribs 1 & 2

Anterior Scalene O: C3-C6 I: Rib 1
Middle Scalene: O: C2-C7 I: Rib 1
Posterior Scalene: O: C4-C6 I: Rib 2

Action:
Unilaterally: Lateral Flexion of Cervical Vertebrae
Elevation of Ribs

Synergist: Sternocleidomastoid

Antagonist: Spinalis Cervicis, Splenius Capitis

Question 3

Sternocleidomastoid

Answer 3

O: Manubrium, Medial Third of Clavicle
I: Mastoid Process of Temporal bone

Action:
Unilaterally:
Rotation of Cervical Vertebrae to OPP side
Lateral Flexion of Cervical Vertebrae to SAME side
Bilaterally:
Flexion of Cervical Vertebrae

Synergist: Scalenes

Antagonist: Splenius Capitis, Trapezius