Neck

Question 1

Sternocleidomastoid

Answer 1

O: sternal head:top of manubrium
clavicular head: medial 1/3 of the clavicle
I: Proccesus matoideus and occiput
F: unilaterally
laterally flex the head and neck to the same side
rotate the head and neck to the opposite side
bilaterally:
flex the neck
assist to elevate the rib cage during inhalation

Question 2

scalenes anterior

Answer 2

O: transverse processes of C3 till C6 (anterior tubercles)
I: first rib
F: Unilaterally:
with the ribs fixed, laterally flex the head and neck to the same side
rotate head and neck to the opposite side

Bilaterally
elevate the ribs during inhalation
flex the head and neck

Question 3

Scalenes medius

Answer 3

O: transverse proccesses of C2 till C7 (posterior tubercles)
I: first rib
F: Unilaterally:
with the ribs fixed, laterally flex the head and neck to the same side
rotate head and neck to the opposite side

Bilaterally
elevate the ribs during inhalation
flex the head and neck

Question 4

Scalenes posterior

Answer 4

O: transverse processes of C6-7 (posterior tubercles
I: second rib
F: Unilaterally:
with the ribs fixed, laterally flex the head and neck to the same side
rotate head and neck to the opposite side

Bilaterally
elevate the ribs during inhalation
flex the head and neck