Neck and face

Question 1

Occipitofrontalis

Answer 1

Origin: Superior nuchal line of occipital bone
Insertion: skin of eyebrows and root of nose
N: facial nerve
A: Raise eyebrows and wrinkles forehead

Question 2

Buccinator

Answer 2

O: Alveolar processes of maxilla and mandible
I: Angle of mouth
A: compresses cheek
N: facial nerve

Question 3

Obicularis Oris

Answer 3

O: Vermilion line
I: Skin and fascia of lips
A: compresses and protrudes lips
N: facial nerve

Question 4

Temporalis

Answer 4

O: Temporal fossa
I: Coronoid process and ramus of mandible
A: Elevates and retracts mandible
N: Anterior and posterior deep temporal nerves

Question 5

Masseter

Answer 5

O: Zygomatic arch
I: Ramus of mandible
A: elevates mandible and assists in protraction of mandible
N: Masseteric nerve

Question 6

Medial Pterigoid

Answer 6

O:Medial surface of lateral pterygoid plate of sphenoid bone
I:Medial surface of ramus and angle of mandible
A: Laterally moves and protracts mandible
N: Nerve to medial Pterygoid muscle

Question 7

Lateral Pterigoid

Answer 7

I: Lateral aspects of lateral Pterigoid plate of spenoid bone.
O: Neck of mandible
A: Laterally moves and protracts mandible
N: nerve to lateral Pterigoid muscle

Question 8

Sternocleidomastoid

Answer 8

O: Anterior surface of manubrium of sternum, medial one third of clavicle
I: Mastoid process of temporal bone and superior nuchal line of occipital bone.
A: Flexes and laterally flexes neck, rotates head
N: Accessory nerve

Question 9

Sternohyoid

Answer 9

I: Sternal end of clavicle and manubrium of sternum
O: Inferior border of hyoid bone
A: depresses hyoid bone
N: Ansa cervicalis

Question 10

Scalenus anterior

Answer 10

O:Tubercles of transverse processes of C3-C6 vertebrae
I: Scalene tubercle of the first rib
A: Flexes rotates and laterally flexes neck, elevates first rib
N: Anterior rami of C4-C6

Question 11

Scalenus medius

Answer 11

I: transverse processes of C2-C7 vertebrae.
O: superior surface of first rib
A: Laterally flexes neck; elevates first rib.
N: Anterior rami of third to eighth
cervical nerves (C3-C8).

Question 12

Scalenus posterior

Answer 12

Origin: tubercles of transverse processes of C4-C6 vertebrae.
Insertion: External surface of second rib.
Action: Laterally flexes neck; elevates second rib.
Innervation: Anterior rami of fourth to sixth
cervical nerves (C4-C6).

Question 13

Longus Capitis

Answer 13

Origin: Anterior tubercles of transverse
processes of C3-C6 vertebrae.
Insertion. Basilar part of occipital bone.
Action: Flexes head.
Innervation: Anterior rami of first to third
cervical nerves (C1-C3).

Question 14

Longus Colli

Answer 14

Anterior aspects of C3-T3 vertebrae.
Insertion: Anterior aspects of C1-C6 vertebrae.
Action: Flexes and rotates neck at cervical
vertebral joints.
Innervation: Anterior rami of second to
sixth cervical nerves (C2-C6).

Question 15

Rectus Capitis

Posterior Minor

Answer 15

Origin: Posterior arch of atlas (C1).
Insertion: Inferior nuchal line of occipital
bone and adjacent area.
Action: Extends head.
Innervation: Suboccipital nerve (posterior
ramus of first cervical nerve)

Question 16

Rectus Capitis

Posterior Major

Answer 16

Origin: Spinous process of axis (C2).
Insertion: Inferior nuchal line of occipital bone.
Action: Rotates and extends head.
Innervation: Suboccipital nerve (posterior
ramus of first cervical nerve).

Question 17

Obliquus

Capitis Inferior

Answer 17

Origin: Spinous process of axis (C2).
Insertion: Transverse process of atlas (C1).
Action: Rotates head.
Innervation: Suboccipital nerve (posterior
ramus of first cervical nerve).

Question 18

Obliquus
Capitis
Superior

Answer 18

Origin: Transverse process of atlas (C1).
Insertion: Between superior and inferior nuchal lines of occipital bone.
Action: Laterally flexes and extends head.
Innervation: Suboccipital nerve (posterior
ramus of first cervical nerve).

Question 19

Splenius Capitis

also has a Colli

Answer 19

Origin: Nuchal ligament and spinous
processes of C7-T3 vertebrae.
Insertion: Mastoid process of temporal
bone; lateral one third of superior nuchal
line of occipital bone.
Action: Rotates and extends head.
Innervation: Posterior rami of second and
third cervical nerves.

Question 20

Semispinalis Capitis
(also has a Colli and
Thoracis

Answer 20

Origin: Superior articular processes of C4
C7 vertebrae; transverse processes of T1
-T6 vertebrae.
Insertion: Area located between superior
inferior nuchal lines of occipital bone.
Action: Extends and rotates the head.
Innervation: Greater occipital (C2) and third
cervical nerves