Structures in the anterior median region of the neck

• Skin
• Superficial fascia
• Decussating fibres of platysma
• Anterior jugular V
• Jugular venous Arch
• Submental LN
• Terminal part of transverse N

• Deep fascia
• Investing layer
• Above hyoid bone — splits to enclose submandibular gland
• Below splits to enclose suprasternal space

Deep structure above hyoid bone

• Mylohyoid muscle
• Anterior belly of digastric
• Superficial part of submandibular gland
•  Mylohyoid N & Vls
• Submental br of Facial A
• Anteroinferior part of hyoglossus
• Intermediate tendon of digastric
• Bifurcated tendon of stylohyoid
• Subhyoid bursa

 Structures below the hyoid bone

• Superficial plane containing infrahyoid muscles

1. Sternohyoid
2. Sternothyroid
3. Thyrohyoid
4. Superior belly of omohyoid

•  Middle plane pretracheal fascia 
• Deep to pretracheal fascia

1. Thyrohyoid membrane
2. Thyroid cartilage 
3. Cricothyroid membrane
4. Arch of cricoid cartilage
5.  Cricothyroid muscle
6. Trachea
7. Isthmus of thyroid gland
8.  Carotid sheath on either side

Watch lectures on YouTube:

Anterior Median Structures of the Neck | Boundaries of Neck |