Neck

Question 0

Origin of Sternocleidomastoid

Answer 0

Sternal Head- Anterior surface of Manubrium of Sternum

Clavicular Head- Superior surface of medial third of Clavicle

Question 1

What are the muscles of the cutaneous and superficial muscles of neck

Answer 1

Platysma

Sternocleidomastoid

Question 2

Insertion of Sternocleidomastoid

Answer 2

Lateral surface of the Mastoid Process of Temporal bone and Lateral half of Superior Nuchal Line

Question 3

Innervation of Sternocleidomastoid

Answer 3

Spinal Accessory Nerve- CN XI (motor)

C2 and C3 nerves (pain and proprioception)

Question 4

Actions of Sternocleidomastoid

Answer 4

Unilateral Contraction- Tilts head to same side (laterally flexes the neck) and rotates it so face is turned superiorly toward opposite side

Bilateral Contraction- Extends Neck at Atlanto-occipital joints, Flexes Cervical Vertebrae so that Chin approaches Manubrium, or Extends superior Cervical Vertebrae while Flexing Inferior Vertebrae so Chin is trust forward with head kept level

With Cervical Vertebrae fixed, may elevate Manubrium and medial end of Clavicles, assisting pump-handle action of deep respiration

Question 5

Four main regions of the Neck

Answer 5

SCM region
Posterior Cervical region
Lateral Cervical region
Anterior Cervical region

Question 6

SCM muscle divides neck into which regions

Answer 6

Anterior and Lateral Cervical Regions

Question 7

Muscles in the Lateral Cervical Region (Contents)

Answer 7

Splenius Capitis
Levator Scapulae
Middle Scalene
Posterior Scalene

Question 8

Floor of the Lateral Cervical Region

Answer 8

Prevertebral Fascia, overlays four muscles

Question 9

Nerves of Lateral Cervical Region

Answer 9

Spinal Accessory Nerve
Roots of Brachial Plexus
Suprascapular Nerve
Cervical Plexus
Cutaneous branches of the Cervical Plexus- Nerve point of the neck
Lesser Occipital Nerve
Great Auricular Nerve- C2
Transverse Cervical Nerve-  C2 and C3
Supraclavicular Nerves- C2 and C3
Phrenic Nerves- C3 C4 C5- Diaphragm
Accessory Phrenic Nerve- C5

Question 10

Veins in the Lateral Cervical Region

Answer 10

External Jugular Vein
Subclavian Vein
Brachiocephalic Vein

Question 11

Arteries in Lateral Cervical Region

Answer 11

Cervicodorsal Trunk (transverse cervical artery)
Suprascapular Artery
Occipital Artery
Third part of the Subclavian Artery

Question 12

Origin of Anterior Scalene

Answer 12

Anterior tubercles of Transverse processes of C3 to C6 vertebrae

Question 13

Insertion of Anterior Scalene

Answer 13

1st Rib

Question 14

Innervation of Anterior Scalene

Answer 14

Cervical Spinal Nerve C4 C5 C6

Question 15

Actions of Anterior Scalene

Answer 15

Flexes Neck Laterally

Elevates 1st Rib during forced inspiration

Question 16

Origin of Middle Scalene

Answer 16

Posterior tubercles of Transverse processes of C4 to C7

Question 17

Insertion of Middle Scalene

Answer 17

Superior surface of 1st Rib; posterior to groove for Subclavian artery

Question 18

Innervation of Middle Scalene

Answer 18

Anterior Rami of Cervical Spinal Nerves

Question 19

Actions of Middle Scalene

Answer 19

Flexes Neck laterally

Elevates 1st Rib during forced Inspiration

Question 20

Origin of Posterior Scalene

Answer 20

Posterior Tubercles of Transverse processes of C4 to C6

Question 21

Insertion of Posterior Scalene

Answer 21

External border of 2nd Rib

Question 22

Innervation of Posterior Scalene

Answer 22

Anterior Rami of Cervical Spinal Nerves C7 and C8

Question 23

Actions of Posterior Scalene

Answer 23

Flexes Neck Laterally

Elevates 2nd Rib during forced inspiration