Neck

Question 1

Splenius Capitis
(O, I, A, N)

Answer 1

O: Nuchal ligament (C3-C6) & SPs C7-T4
I: Mastoid process and
superior nuchal line of the occiput
A: Extension, Lateral flexion, & Ipsilateral rotation of head & neck @ the spinal joints
N: Cervical spinal nerves

Question 2

Splenius Cervicis
(O, I, A, N)

Answer 2

O: SPs T3-T6
I: TvPs of C1-C3
A: Extension, Lateral flexion, & Ipsilateral rotation of the neck @ the spinal jts.
N: Cervical spinal nerves

Question 3

Rectus Capitis Posterior Minor
(O, I, A, N)

Answer 3

O: Posterior tubercle of C1 (atlas)
I: Medial ½ of Inferior nuchal line of the occiput
A: Extension & Protraction of the head @ C0/C1 jt.
N: Suboccipital nerve

Question 4

Rectus Capitis Posterior Major
(O, I, A, N)

Answer 4

O: SP of C2
I: Lateral ½ of Inferior Nuchal line of occiput
A: Extension & Ipsilateral rotation of the head @ the C0/C1 jt.
N: Suboccipital nerve

Question 5

Obliquus Capitis Inferior
(O, I, A, N)

Answer 5

O: SP of C2
I: TvP of C1
A: Ipsilateral rotation of the atlas @ C1/C2 jt.
N: Suboccipital nerve

Question 6

Obliquus Capitis Superior
(O, I, A, N)

Answer 6

O: C1 (atlas) – TvP
I: Occiput: between superior & inferior nuchal lines (planum nuchae)
A: Protraction & Contralateral rotation of the head @ CO/C1
N: Suboccipital nerve

Question 7

Platysma
(O, I, A)

Answer 7

O: Subcutaneous fascia of pectoralis and deltoid
I: Mandible & subcutaneous fascia of lower face
A:
-Draws up the skin of the superior chest and neck
-creates ridges of skin of the neck
-Depresses mandible @ TMJ jt.

Question 8

Sternocleidomastoid (SCM)
(O, I, A, N)

Answer 8

O: 2 heads:
Sternal: manubrium
Clavicular: medial 1/3 clavicle
I: Mastoid process of temporal bone &
lat ½ of superior nuchal line of occiput
A:
- Flexion of the lower neck @ the spinal jts.
- Extension of the head and upper neck @ the spinal jts.
- Lateral flexion & contralateral rotation of the head and neck @ the spinal jts
N: Spinal accessory nerve 11
(CN XI)

Question 9

Anterior Scalenes
(O, I, A, N)

Answer 9

O: TvPs of C3-C6
I: Rib # 1
A:
- Flexion & lateral flexion of the neck @ the spinal jts.
- Elevation of rib #1 @ the costospinal & sternocostal jts.
N: Cervical spinal nerves

Question 10

Middle Scalenes
(O, I, A, N)

Answer 10

O: TvPs of C2-C7
I: Rib # 1
A:
-Flexion & lateral flexion of the neck @ the spinal jts.
-Elevation of rib #1 @ the costospinal & sternocostal jts
N: Cervical spinal nerves

Question 11

Posterior Scalenes
(O, I, A, N)

Answer 11

O: TvPs of C5-C7
I: Rib # 2
A:
- Lateral flexion of the neck @ the spinal jts.
- Elevation of rib #2 @ the costospinal & sternocostal jts.
N: Cervical spinal nerves

Question 12

Rectus Capitis Anterior
(O, I, A)

Answer 12

O: TvP of C1
I: Basilar part of Occiput
A: Flexion of head @ C0/C1 jt

Question 13

Rectus Capitis Lateralis
(O, I, A)

Answer 13

O: TvP of C1
I: Jugular process on Occiput
A: Lateral flexion of head @ C0/C1 jt

Question 14

Longus Colli
(O, I, A)

Answer 14

O: Bodies and TvPs of C3-T3
I: Bodies and TvPs of C1-C6
A: Flexion of the neck @ the spinal jts.

Question 15

Longus Capitis
(O, I, A)

Answer 15

O: TvPs of C3-C5
I: Anterior to foramen magnum on the Occiput
A: Flexion of head & neck @ spinal jts.

Question 16

MyloHyoid
(O, I, A, N)

Answer 16

O: Inner surface of mandible – the Mylohyoid line
I: Hyoid
A:
-Depression of mandible at the TMJ
-Flexion of head and neck at spinal joints
- Elevation of the hyoid
N: Trigeminal nerve
(CN 5)

Question 17

GenioHyoid
(O, I, A)

Answer 17

O: Inner surface of the mandible – Inferior mental spine
I: Hyoid
A:
-Depression of mandible at the TMJ
-Flexion of head and neck at spinal joints
-Elevation of the hyoid

Question 18

Digastric
(O, I, A, N)

Answer 18

O:
Posterior: Mastoid notch of temporal bone
Anterior: digastric fossa of mandible
I: Hyoid bone via central tendon
A: -Depression of mandible at the TMJ
-Flexion of head and neck at spinal joints
-Elevation of the hyoid
N: Ant belly: Trigeminal nerve
(CN 5)
Post belly: Facial nerve (CN 7)

Question 19

Stylohyoid
(O, I, A)

Answer 19

O: Styloid process of temporal bone
I: Hyoid
A: Elevates the hyoid bone

Question 20

Sternohyoid
(O, I, A, N)

Answer 20

O: Sternum
I: Hyoid
A:
-Depression of the hyoid
-Flexion of the head & neck @ the spinal jts.
N: Cervical plexus

Question 21

Sternothyroid
(O, I, A)

Answer 21

O: Sternum
I: Thyroid
A:
-Depression of thyroid cartilage
-Flexion of the head & neck @ spinal joints

Question 22

Thyrohyoid
(O, I, A)

Answer 22

O: Thyroid cartilage
I: Hyoid
A:
-Depresses the hyoid
-Flexion of the head & neck @ the spinal jts.

Question 23

Omohyoid
(O, I, A, N)

Answer 23

O+I: 2 Bellies
Inferior: scapula (superior border) → clavicle via central tendon
Superior: clavicle via central tendon → Hyoid bone
A:
-Depresses the hyoid
-Flexion of the head & neck @ the spinal jts.
N: Cervical Plexus