Neck High Yield

Question 1

What are the suprahyoid muscles and their innervations?

Answer 1

Digastrics (A-5, P-7)
Mylohyoid (5)
Stylohyoid (7)
Geniohyoid (12,12)

CN- 5,7,5,7, 12, 12

Question 2

What are the Infrayhyoid muscles and their innervations?

Answer 2

Sternohyoid
Sternothyroid
Thyrohyoid
Omohyoid

All innervated by ansa cervicales

Question 3

What are the boundaries of the anterior traingle?

Answer 3

Sup- inferior border mandible

lat: SCM
med: midline neck

Question 4

What divides the anterior traingle into suprahyoid and infrahyoid regions?

Answer 4

posterior belly of digastric and body of hyoid bone

Question 5

What are the divisions of the anterior triangle?

Answer 5

Carotid tri
Submental tri
Submandibular tri
Muscular tri

Question 6

What are the boundaries of the Carotid Triangle?

Answer 6

Superior: Posterior Belly of Digastric
Lateral: Medial Border SCM
Inferior: Superior belly of Omohyoid m.

Question 7

What are the contents of the Carotid Triangle?

Answer 7

Carotid Sheath and deep cervical lymph nodes
Common Carotid Artery
Internal Jugular Vein
Vagus Nerve
Hypoglossal Nerve (Crosses external carotid laterally and anteriorly)
Cervical Branch of Facial Nerve

Question 8

What are the boundaries of the Submental Triangle?

Answer 8

inf: hyoid bone
medially: midline of neck
laterally: ant. belly of digastric

bas

Question 9

What are the contents of the submental triangle?

Answer 9

submental lymph nodes

tributaries of anterior jug?

Question 10

What are the boundaries of the Submandibular triangle?

Answer 10

sup- body of mandible
anterior- ant belly of digastric
poster- post belly of digastric

Question 11

What are the contents of the submandibular triangle?

Answer 11

Inside capsule:

submandibular salivary gland, submandibular lymph nodes, facial a and v

outside of capsule: marginal mandibular branch of facial nerve

hypoglossal n lies between gland and lingual vessels

Question 12

What are the boundaries of the Muscular Triangle?

Answer 12

sup- hyoid bone
medially- midline neck
superolaterally- sup. belly omohyoid
inferolaterally- inf portion of scm

Question 13

What are the contents of the Muscular Traingle?

Answer 13

• infrahyoid muscles
• pharynx
• thryoid
• parathyroid
• cervical division of trachea and esophagus

Question 14

what covers the submandibular triangle superfically?

Answer 14

Platysma along with skin

Question 15

What are the boundaries of the posterior triangle of the neck?

Answer 15

SCM, trapezius, clavicle

Question 16

What are the divisions of the posterior triangle?

Answer 16

occipital triangle

subclavian triangle/ supraclavicular triangle

Question 17

What muscle divides the posterior triangle?

Answer 17

inferior belly of the omohyoid

Question 18

What are the contents of the Occipital Triangle?

Answer 18

Semispinalis capitis m.
splenius capitis m.
levator scapulae m.
scalene muscles

occipital a + v
accessory spinal nerve
ejv
branches of cervical plexus

Question 19

What are the contents of the Supraclavicular (omoclavicular, subclavian) Triangle?

Answer 19

Subclavian a + v
brachial plexus
ejv

more details in notes

Question 20

What is enclosed in the superficial fascia of neck?

Answer 20

Platysma muscle

Question 21

What is enclosed in the investing fascia?

Answer 21

trapezius
scm
parotid gland
submandibular gland

Question 22

What is enclosed in the pretracheal fascia?

Answer 22

infrahyoid (strap) muscles

Question 23

What is enclosed in the the prevertebral fascia>

Answer 23

Scalene muscles
phrenic nerve
brachial plexus
subclavian a

Question 24

What are the components of the Carotid Sheath?

Answer 24

Common and internal carotid a
internal jugular vein
vagus nerve
deep cervical lymph nodes