Anterior Neck

Question 1

Stylohyoid

Answer 1

O: Styloid process

I: Hyoid bone

N: Facial nerve (CN VII)

A: Elevate hyoid and tongue, depress mandible (TMJ)

Question 2

Mylohyoid

Answer 2

O: Underside of mandible (medial body)

I: Hyoid bone

N: Trigeminal nerve (CN V)

A: Elevate hyoid and tongue, depress mandible (TMJ)

Question 3

Geniohyoid

Answer 3

O: Mandible (Anterior body)

I: Hyoid bone

N: Nerve to geniohyoid (C1-C2)

A: Elevate hyoid and tongue, depress mandible (TMJ)

Question 4

What muscle(s) insert on the hyoid bone?

Answer 4

Stylohyoid, Mylohyoid, Geniohyoid, Omohyoid, Sternohyoid, Thyrohyoid

Question 5

The action “elevate hyoid and tongue, depress mandible (TMJ)” is done by what muscle(s)?

Answer 5

Stylohyoid, Mylohyoid, Geniohyoid, Omohyoid, Sternohyoid, Thyrohyoid

Question 6

Omohyoid

Answer 6

O: Superior border of scapula

I: Hyoid bone

N: Ansa cervicalis (C1-C3)

A: Depress (or fix) hyoid bone and thyroid cartilage

Question 7

Sternohyoid

Answer 7

O: Manubrium of sternum

I: Hyoid bone

N: Ansa cervicalis (C1-C3)

A: Depress (or fix) hyoid bone and thyroid cartilage

Question 8

Sternothyroid

Answer 8

O: Manubrium of sternum

I: Thyroid cartilage

N: Ansa cervicalis (C1-C3)

A: Depress (or fix) hyoid bone and thyroid cartilage

Question 9

Thyrohyoid

Answer 9

O: Thyroid cartilage

I: Hyoid bone

N: C1-C2

A: Depress (or fix) hyoid bone and thyroid cartilage

Question 10

The action “Depress (or fix) hyoid bone and thyroid cartilage” is done by what muscle(s)?

Answer 10

Omohyoid, Sternohyoid, Sternothyroid, Thyrohyoid

Question 11

What muscle(s) attach to the Manubrium of sternum?

Answer 11

Sternohyoid, Sternothyroid
ORIGIN

Question 12

What muscles are innervated by the Ansa Cervicalis (C1-C3)?

Answer 12

Omohyoid, Sternohyoid, Sternothyroid

Question 13

What muscles are the Infrahyoids?

Answer 13

Omohyoid, Sternohyoid, Sternothyroid, Thyrohyoid

Question 14

What muscles are the Suprahyoids?

Answer 14

Stylohyoid, Mylohyoid, Geniohyoid

Question 15

Longus Capitus

Answer 15

O: Transverse Processes of C3-C6

I: Inferior surface of Occiput

N: C1-C3 (4)

A: Unilateral - Ipsilateral lateral flexion of head; Ipsilateral rotation of head
Bilateral - Head/Neck flexion

Question 16

Longus Colli

Answer 16

O: Vertebral bodies of C5-T3, Transverse processes of C3-C5

I: Tubercle of anterior arch of atlas (C1); Bodies of axis (C2); Vertebral bodies of C3-C4; Transverse processes of C5-C6

N: C2-C6 (occasionally C7)

A: Unilateral - Ipsilateral flexion of head; Ipsilateral rotation of head
Bilateral - Head/Neck flexion

Question 17

Rectus Capitus Anterior

Answer 17

O: Anterior surface of lateral mass of C1 vertebra (atlas)

I: Base of cranium, anterior to occipital condyle

N: Branches from C1-C2 loop

A: Flexion of head/neck

Question 18

Rectus Capitus Lateralis

Answer 18

O: Transverse process of C1 (atlas)

I: Jugular process of occipital bone

N: Branches from C1-C2 spinal nerves

A: Flexes & stabilizes head

Question 19

Anterior Scalene

Answer 19

O: Transverse Processes of C3-C6 vertebrae

I: 1st Rib

N: Cervical spinal nerves (C3) C4-C8

A: Unilateral - (Neck) Ipsilateral lateral flexion; Contralateral rotation
Bilateral - Neck/Head flexion, elevates ribs (inhale)

Question 20

Middle Scalene

Answer 20

O: Posterior tubercles of transverse processes of C2-C7 vertebrae

I: Superior surface of 1st rib (posterior to groove for subclavian artery)

N: (C3), C4-C8

A: Unilateral - (Neck) Ipsilateral lateral flexion; Contralateral rotation
Bilateral - Neck/Head flexion, elevates ribs (inhale)

Question 21

Posterior Scalene

Answer 21

O: Transverse Processes of C6-C7

I: 2nd rib

N: (C3), C4-C8

A: Unilateral - (Neck) Ipsilateral lateral flexion; Contralateral rotation
Bilateral - Neck/Head flexion, elevate ribs (inhale)