Muscles of the Neck : Anterior/ Lateral Neck

Question 1

Rectus Capitis Anterior attaches from where to where? and is resposible for what action?

Answer 1

lateral mass of C1 - Occiput

flexes head on the neck

Question 2

The ___ muscle attaches from the lateral mass of C1 - Occiput and Flexes the head on the neck

Answer 2

Rectus Capitis Anterior

Question 3

The Rectus capitis lateralis attaches from where to where and is responsible for what 2 actions?

Answer 3

TVP of C1 - Occiput

flexes head on the neck
laterally flexes head on neck

Question 4

The ____ muscle attaches from the TVP of C1 - the occiput and is responsible for flexing the head on the neck and laterally flexing the head on the neck.

Answer 4

Rectus capitis lateralis

Question 5

The Longus Colli attaches from where to where and is responsible for what action?

Answer 5

Body of T3 - anterior tubercle on C1

flexion of the neck

Question 6

The ____ muscle attaches from the body of T3 to the anterior tubercle of C1 and is responsible for flexion of the neck.

Answer 6

The longus Colli

Question 7

The Longus capitis attaches from where to where and is responsible for what action?

Answer 7

TVPs of C3-6 - the occiput

flexion of the head and neck

Question 8

Which of the four pre-vertebral muscles just flexes the neck?

Answer 8

Longus Colli

Question 9

Which of the four pre-vertebral muscles laterally flex the neck?

Answer 9

Rectus capitis lateralis

Question 10

The anterior scalene attaches from where to where and is responsible for what actions?

Answer 10

Anterior Tubercles of C3-6 TVPs - Rib 1

bilat = flexion of the neck
unilat= ispi lat flex of the neck / contra rot of the neck (weak)
elevates the 1st rib during forced inhalation

Question 11

The middle Scalene attaches from where to where are is responsible for what actions?

Answer 11

Posterior tubercles of C2-7 TVPs - rib 1

Unilat = ipsi lat flex / contra rot of the neck (weak)
Elevates rib 1 during forces inhalation

Question 12

The Posterior Scalene attaches from where to where and is responsible for what actions?

Answer 12

Posterior tubercle of C4-6 TVPs - Rib 2

unilat = ipsi lat flex
Elevates rib 2 during forced inhalation

Question 13

Which of the scalenes attach to rib 1 and which attach for rib 2?

Answer 13

Ant and mid = rib 1

post = rib 2

Question 14

All 3 scalene muscles attach to the TVP’s of the C spine which one attaches to the most TVPs?

Answer 14

ant = 3-6 (4)
MID = 2-7 (6)
post = 4-6 (3)

Question 15

only 2 of the 3 scalene muscles help (if weakly) with rotation of the neck name which 2.

Answer 15

the anterior and middle scalene

Question 16

The Sternocleidomastoid (SCM) muscle attaches from where to where and is responsible for what actions?

Answer 16

Mastoid process - sternum (sternal head) / Clavicle ( clavicular head)

Contra rot of the head and neck
Ipsi lat flex of of the head and neck
Flexion of the neck ( if head/neck is in a neutral of flexed position)
Extension of the head ( if the head/neck is already extended)
Assists with inspiration

Question 17

What is the deciding factor that determines if the SCM will flex or extend the head?

Answer 17

The position that neck is in eg:

neutral or flexed = flexion
extended position = extension

Question 18

What structures outline the anterior cervical triangle? ( not concerned with contents)

Answer 18

Base = mandible
lateral border = SCM
Medial border = Mid sagittal plane of the neck

Question 19

What are the structures that outline the posterior cervical triangle?

Answer 19

Base = clavicle
anterior border = SCM
Posterior border = Trapezius

Question 20

What are the 5 muscles that make up the floor of the posterior cervical triangle? name from superior to inferior ( this is a really good card for landmarking and palpation)

Answer 20

Splenius capitis
levator scapula
middle scalene
posterior scalene
omohyoid (ant belly)

Question 21

The suprahyoids and infrahyoids in general do what actions?

Answer 21

supra = depress mandible and elevate hyoid bone

infra = depress hyoid bone