Muscles of the Anterior Neck

Question 1

Platysma Proximal Attachment

Answer 1

Superficial fascia

Question 2

Platysma Distal Attachment

Answer 2

Superficial fascia

Question 3

Platysma Innervation

Answer 3

Cervical br of facial n. (CN VII)

Question 4

Platysma Action

Answer 4

Tenses the skin of the neck

Question 5

SCM Proximal Attachment

Answer 5

Sternal head: manubrium of the sternum

Clavicular head: medial end of the clavicle

Question 6

SCM Distal Attachment

Answer 6

Mastoid process of the temporal bone

Question 7

SCM Innervation

Answer 7

Spinal accessory (CN XI)

Question 8

SCM Actions

Answer 8

Unilaterally:
-Laterally flexes the head/neck
-Rotates the head/neck to the opposite side
Bilaterally
-Extends the head
-Flexes the neck

Question 9

Anterior Scalene Proximal Attachment

Answer 9

Transverse processes of C3-6

Question 10

Anterior Scalene Distal Attachment

Answer 10

1st rib

Question 11

Anterior Scalene Innervation

Answer 11

Anterior rami of C4-6

Question 12

Anterior Scalene Actions

Answer 12

Unilaterally:
-Laterally flexes the head/neck
-Rotates head/neck to the opposite side
Bilaterally:
-Flexes the head/neck
-Elevates 1st rib

Question 13

Levator Scapulae Proximal Attachment

Answer 13

Transverse processes of C1-4

Question 14

Levator Scapulae Distal Attachment

Answer 14

Medial border of the scapula between the superior angle and root of the spine

Question 15

Levator Scapulae Innervation

Answer 15

Dorsal scapular n. [C5]

Question 16

Levator Scapulae Actions

Answer 16

Elevates the scapula
Rotates scapula downward
Assists with:
-Lateral flexion of the head/neck
-Extension of the head/neck
-Rotation of the head/neck to the same side

Question 17

Middle Scalene Proximal Attachment

Answer 17

Transverse processes of C2-7

Question 18

Middle Scalene Distal Attachment

Answer 18

1st rib

Question 19

Middle Scalene Innervation

Answer 19

Anterior rami of C3-8

Question 20

Middle Scalene Actions

Answer 20

Unilaterally:
-Laterally flexes the head/neck
Bilaterally:
-Flexes the head/neck
-Elevates 1st rib

Question 21

Posterior Scalene Proximal Attachment

Answer 21

Transverse processes of C4-6

Question 22

Posterior Scalene Distal Attachment

Answer 22

2nd rib

Question 23

Posterior Scalene Innervation

Answer 23

Anterior rami of C6-8

Question 24

Posterior Scalene Action

Answer 24

Laterally flexes the neck

Question 25

Splenius Proximal Attachment

Answer 25

Cervicis and capitis: ligamentum nuchae and spinous processes of C7-T4 vertebrae

Question 26

Splenius Distal Attachment

Answer 26

Cervicis: posterior tubercles of the transverse processes of C1-C3 vertebrae
Capitis: mastoid process and lateral end of the superior nuchal line

Question 27

Splenius Innervation

Answer 27

Posterior rami of spinal nerves C2-C6

Question 28

Splenius Actions

Answer 28

Unilaterally:
-Rotates the head/neck to the same side
-Laterally flexes the head/neck
Bilaterally:
-Extends the head/neck

Question 29

Omohyoid Proximal Attachment

Answer 29

Superior border of scapula medial to suprascapular notch

Question 30

Omohyoid Distal Attachment

Answer 30

Hyoid bone

Question 31

Omohyoid Innervation

Answer 31

Anterior rami of C1-C3

Question 32

Omohyoid Action

Answer 32

Depresses the hyoid bone