Neck Areas With Contents

Question 1

Carotid sheath

Answer 1

Internal jugular v.
Common carotid a.
Vagus n.

Question 2

Posterior Triangle borders and contents

Answer 2

Borders:
- SCM, trapezius, clavicle

Contents:

• levator scapulae m.
• scalene m.’s (anterior, middle, posterior)
• inferior belly of the omohyoid m.
• Splenius capitus m.

Question 3

Triangles within posterior triangle

Answer 3

Occipital triangle

Supraclavicular triangle

Question 4

Occipital triangle contents

Answer 4

External jugular v.
Posterior branches of the cervical plexus
Transverse cervical a.

Question 5

Supraclavicular triangle contents

Answer 5

3rd part of the subclavian a.

Suprascapular a.

Question 6

Anterior triangle borders and contents

Answer 6

Borders:

• median line of the neck
• SCM
• mandible

Contents:

• mylohyoid m
• geniohyoid m
• digastric m
• stylohyoid m
• sternohyoid m
• sternothyroid m
• thyrohyoid m
• superior belly of the omohyoid m

Question 7

Triangles within the anterior triangle

Answer 7

Suprahyoid triangles (submental triangle and submandibular triangle)
Infrahyoid triangles (muscular triangle and carotid triangle)

Question 8

Contents of the submandibular triangle

Answer 8

Submandibular gland
Hypoglossal n
N to the mylohyoid m
Parts of the facial a

Question 9

Contents of the submental triangle

Answer 9

Submental a
Submental LN’s
Small veins

Question 10

Muscular triangle contents

Answer 10

Thyroid gland

Parathyroid gland

Question 11

Carotid triangle contents

Answer 11

Common carotid a
Internal jugular v
Vagus n
Hypoglossal n
Spinal accessory n
Superior root of the Ansa cervicalis
Thyroid gland
Larynx
Pharynx
Branches of the cervical plexus

Question 12

Zone 1 of penetrating neck trauma

Answer 12

Below cricoid cartilages

Cervical pleurae
Apices of the lungs
Thyroid glands
Parathyroid glands
Trachea

Esophagus
Common carotid a
Jugular v
Cervical vertebrae

Less common but more difficult to access

Question 13

Zone 2 of penetrating neck trauma

Answer 13

Between cricoid cartilage and angle of the mandible

Laryngeal cartilages
Larynx
Laryngopharynx
Carotid a
Jugular v
Esophagus
Cervical vertebrae

More common but easier to access and repair

Question 14

Zone 3 of penetrating neck trauma

Answer 14

Above angle of mandible

Salivary glands
Oral and nasal cavities
Oro- and nasopharynx

Less common but more difficult to access