Neck Muscles OINA

Question 0

Semispinalis Capitis

Answer 0

O: Transverse process C7-T6, articular process C4-C6
I: between superior and inferior nuchal lines
N: C2-T1 dorsal rami, greater occipital nerve
A: capital extension, rotation of head to opposite side, lateral bending of head to same side

Question 1

Longissimus capitis

Answer 1

O: Transverse process T1-T5 vertebrae, C4-C7 articular process
I: Mastoid process
N: C3-C8 dorsal rami
A: capital extension, lateral bending and rotation of head to same side

Question 2

Spinalis Capitus

Answer 2

O: medial part of semispinalis capitis
I: between superior and inferior nuchal lines
N: C3-T3 dorsal rami
A: capital extension

Question 3

Longissimus Cervicis

Answer 3

O: T1-T5 transverse process
I: C2-C6 transverse process
N: C3-T3 dorsal rami
A: cervical extension, lateral bending of cervical spine to same side

Question 4

Semispinalies cervicis

Answer 4

O: T1-T5 transverse process
I: spinous process of C2-C5
N: C2-T5 dorsal rami
A: cervical extension, lateral bending of cervical spine to same side, rotation of cervical spine to opposite side

Question 5

Iliocostalis cervicis

Answer 5

O: Ribs 3-6
I: C4-C6 transverse process
N: C4-T3 dorsal rami
A: cervical extension, lateral bending of head to same side, assist depression of ribs

Question 6

Splenius cervicis

Answer 6

O: T3-T6 spinous process
I: C1-C3 transverse process
N: C4-C8 spinal nerves
A: cervical extension, lateral bending of head to same side, rotation to same side

Question 7

Rectus Capitis Anterior

Answer 7

O: C1 transverse process
I: basilar part of occiput
N: C1,C2 ventral rami
A: capital flexion, stabilization of AO joint

Question 8

Rectus Capitis Lateralis

Answer 8

O: Transverse process of atlas
I: jugular process of occiput
N: C1,C2 ventral rami
A: lateral bending of head to same side, capital flexion, stabilization of AO joint, assist head rotation

Question 9

Longus Capitis

Answer 9

O: C3-C6 transverse process
I: basilar part of occiput
N: C1-C3 spinal nerves
A: capital flexion, rotation of head to same side

Question 10

Longus Colli

Answer 10

O: anterior tubercles of transverse process of C3-C5
I: atlas
N: C2-C6 spinal nerves
A: cervical flexion, cervical rotation to opposite side, may laterally flex

Question 11

Mylohyoid

Answer 11

O: mandible
I: superior surface of hyoid bone, mylohyoid raphe
N: Trigeminal nerve
A: raises hyoid bone and tongue for swallowing, depresses mandible with hyoid fixed, assist capital flexion

Question 12

Stylohyoid

Answer 12

O: styloid process of temporal bone
I: greater horn of hyoid bone
N: facial nerve
A: pulls hyoid bone up and back, capital flexion, assist depression of mandible, participates in mastication and speech

Question 13

Geniohyoid

Answer 13

O: inferior mental spine of mandible
I: anterior surface of hyoid bone
N: C1 spinal nerve
A: elevation and protraction of hyoid, assist capital flexion, assist mandible depression

Question 14

Digastric

Answer 14

O: posterior bely is mastoid notch of temporal bone, anterior belly is mandible
I: intermediate tendon and from there to hyoid bone
N: Anterior belly is trigeminal, posterior belly is facial
A: mandible depression, hyoid elevation, anterior belly draws forward, posterior belly draws backward, assist capital flexion

Question 15

Sternothyroid

Answer 15

O: manubrium, cartilage of 1st rib
I: thryoid cartilage
N: C1-C3 cervical nerves
A: cervical flexion, draws larynx down, depression of hyoid, mandible, and tongue after elevation

Question 16

Thyrohyoid

Answer 16

O: thryoid cartilage
I: hyoid bone
N: Hypoglossal nerve
A: cervical flexion, draws hyoid downward, elevates larynx and thryoid cartilage

Question 17

Omoyhoid

Answer 17

Origin:
Inferior belly: scapula
Superior belly: intermediate tendon of omohyoid
Insertion:
Inferior belly: intermediate tendon
Superior belly: hyoid bone
Innervation: hypoglossal and C2-C3 cervical nerves
Action: depression of hyoid, cervical flexion