1. Neckology

2. Anatomy of neck Neck border
Upper ：mandibular rim, mandibular angle, mastoidale, supraoccipital line
lower ：suprasternal notch, sternoclavicular joint, collar bone, line between acromion and 7th cervical vertebrae

3. Anatomy of neck Neck sector Posterior region： nucha
Anter-lateral region：
neck
anterior region
lateral region

4. 颈部三角
颏下三角
颌下三角
颈动脉三角
枕三角
肌三角
锁骨上三角

5. Organs in neck
middle：thyroid gland, larynx, trachea, hypopharynx, neck segment of esophagus, strap muscles
lateral：
Cervical sheath
Sternocleidomastoid
muscle
Omohyoid muscle
Posterior group of
encephalic nerves
Submaxillary gland

6. Neck fascia and fascia space
Superficial fascia：under the subcutaneous, wrap total neck up
Deep fascia：
Superficial layer： wrap sternocleidomastoid
muscle and cucullaris
Middle layer：visceral fascia
Deep layer：prevertebral fascia

7. Neck fascia and fascia space
Fascia space above the hyoid bone
Submandibular space
Parapharyngeal space
Peritonsilla space
Masseter space
Parotid space

8. Space under the hyoid bone
Space cross the hyoid bone
Prevertebral space
Carotid sheath
Postpharyngeal space

9. Strata of neck derma platysma Strap muscles Thyroid gland
Larynx and trachea
hypopharynx
neck segment
of esophagus
prevertebral fascia

10. Lymph nodes in neck（１９９１）
Level I：submental triangle, submaxillary triangle
Level II：upper group of jugular lymph nodes
Level Ⅲ：middle group of jugular lymph nodes
Level Ⅳ： lower group of jugular lymph nodes
LevelⅤ：lymph nodes of posterior neck triangle
Level VI：lymph nodes of anterior neck space

11. Thank You