Triangles Of Neck

Question 1

Cutaneous Nerves of Neck

Posterior

Answer 1

Cutaneous Branches of Dorsal Rami of
C2 (Greater occipital n)
C3-C6

Question 2

Cutaneous Nerves of Neck

Anterolateral

Answer 2

Cutaneous branches of cervical plexus from ventral rami C2-C4

Less occipital
Great auricular
Transverse cervical
Supraclavicular

Question 3

Dermatomes of neck

Answer 3

Anterior C2-C4
Posterior C3-C5
No C1 dermatome

Question 4

Vertebral compartment

Answer 4

Cervical vertebrae

Surrounding mm

Question 5

Visceral compartment

Answer 5

Parts of resp and GIT

Some endocrine organs

Question 6

Vascular compartments

Answer 6

Major blood vessels

CN X

Question 7

Deep fascia of neck

Answer 7

Investing (superficial) layer

Visceral (pretracheal and buccopharyngeal) layer

Prevertebral layer

Carotid sheath

Question 8

Retropharyngeal space location

Answer 8

Between visceral and prevertebral layers

Bordered laterally by carotid sheath

Question 9

Torticollis

Answer 9

“Wry neck”

Fibrotic or spastic shortening of SCM

Question 10

CN XI location

Answer 10

LMNs in ventral horn of upper cervical SC

Question 11

Ant to ant scalene

Answer 11

Phrenic n

Subclavian n

IJV

Question 12

Between ant and middle scalene

Answer 12

Subclavian a

Brachial plexus

Lower part of cervical plexus

Question 13

Superficial infrahyoid (strap) mm and innervation

Answer 13

Sternohyoid

Omohyoid

Ansa cervicalis from C1-C3 of cervical plexus

Question 14

Deeper infrahyoid (strap) mm and innervation

Answer 14

Sternothyroid
(Ansa cervicalis from C1-C3 of cervical plexus)

Thyrohyoid
(C1 fibres that run with CN XII)

Question 15

Suprahyoid mm and innervation

Answer 15

Anterior belly digastric and mylohyoid (CN V3)

Posterior belly digastric and stylohyoid (CN VII)

Geniohyoid (C1 runs with CN XII)

Question 16

Submandibular triangle

Answer 16

Digastric bellies

Mandible

Question 17

Submental triangle

Answer 17

Ant belly digastric
Hyoid
Midline

Question 18

Carotid triangle

Answer 18

SCM
Sup belly omohyoid
Post belly digastric

Question 19

Muscular triangle

Answer 19

Sup belly omohyoid
SCM
Midline

Question 20

Stylohyoid

Answer 20

Suprahyoid m

CN VII

Question 21

Styloglossus

Answer 21

Extrinsic tongue m

CN XII

Question 22

Stylopharyngeus

Answer 22

Pharyngeal m

CN IX

Question 23

Anterior vertebral mm and innervation

Answer 23

Longus capitus
Longus colli
Rectus capitis anterior (and latetalis)
Ant scalene (and middle and post)

Ventral rami of cervical nn