TOPIC 11

Question 1

Muscles

Answer 1

M.Sternocleidomastoideus

• M.brachiocephalicus
  m. cleidobrachialis
  m. cleidocephalicus
• M.Sternocephalicus

+Omotransversarius

Question 2

M.sternocleidomastoideus

- M. Sternosephalicus

Answer 2

O: Manubrium Sterni
I:
- M.sternomastoideus:
Processus Mastoideus (of temporal bone)

- M.Sternooccipitalis:
Crista Nuchae (of occipital bone)

A:
Unilateral contraction: draws head and neck to one side (latero-ventral flexion)
Bilateral contraction: Draws head down

Question 3

M.sternocephalicus

- M.Brachiocephalicus

Answer 3

• M.Cleidobrachialis
  O: Distal cranial surf. of humerus + crista humeri
  I: Clavicular intersection

- M.cleidocephalicus
O: Clavicular intersection
I:
- M.cleidomastoideus: Proc. mastoideus
(of temporal bone)
- M.cleidocephalicus: Raphe Cervicis

A:
If forelimb fixed: Unilateral and bilateral contraction
If forelimb is free: Move forelimb cranialy

Question 4

M.Omotransversarius

Answer 4

O: Distal part of spina scapula and then runs under m.sternocleidomastoideus
I: Caudal border of Ala atlantis
A:
If forelimb is fixed: Flex neck lateraly
If forelimb is free: Draws shoulder cranialy

Question 5

Lc Cervicale Superficiale

Answer 5

Cranial to M.supra spinati, on LATERAL surface of of neck, covered by skin, facia and muscles

Question 6

N.accessorius

Answer 6

Innervates sternocleido mastiodeus muscles

From vagus group XI

Question 7

N.Suprascapularis

Answer 7

Innervates the suprascapular muscle

From the Brachial Plexus C6

Question 8

A.Cervicale Superficiale

Answer 8

Branches of the left subclavian atrery

Vascularise the ventral part of the base of the neck