o Posteror auncuiar vein Pasterior auncuar nerve (VI Postenor avuncular artery e Eperaniua, oocipnotrontals Parotid gland Great avuncular nerve Extemal jugular vein The Transverse cervical superficial cervical Lesser occipital nerve veins and Great avuncular nerve nerves are o Levator scapulae located deep to the platysma Lateral supractavcar Fig. 265 Blood vessels and nerves of anterior and lateral cervical reglon (anterior and posterior triangle; superficial layer, left lateral aspect(70%)
• The superficial cervical veins and nerves are located deep to the platysma
The main action of the platysma: draws corners of mouth inferiorly and widens it as in expressions of sadness and fright, draws the skin of neck superiorly when teeth are " clenched
• The main action of the platysma:①draws corners of mouth inferiorly and widens it as in expressions of sadness and fright; ②draws the skin of neck superiorly when teeth are “clenched
Occipital vein Superficial temporal vein Maxillary vein Posterior auricular Retromandibular vein vein Facial vein Trapezius Sternocleidomastoid Accessory nerve External jugular vein Communicating branch Transverse cervical veIn Anterior jugular vein Suprascapular vein Brachiocephalic vein Omohyoid Subclavian vein 2. Superficial veins of neck 颈前静脉或颈前正中静脉、颈外静脉
2. • 颈前静脉或颈前正中静脉、颈外静脉
Superficial Veins and Cutaneous Nerves of Neck Hyoid bone Digastric muscle (anterior belly) Antenor jugular vein Platysma muscle(cut) Facial artery and vein Mylohyoid muscle Marginal mandibular Submandibular gland Omohyoid muscle (cu Retromandibular vein Intemal jugular vein Parotid gland Extemal jugular vein Ectemal canotid arten Communicating vein tHyrohyoid muscle 颈静脉弓 Stemocleidomastoid muscle (out) Great auricular nerve Supenor thyroid artery and vein Common carotid artery Thyroid cartilage Sternohyoid muscle Sternothyroid muscle Transverse cervical nen Thyroid gland Intemal jugular vein Trapezius muscle Ansa cervicalis Supraclavicular Supenor belly omohyoid nenes muscle (cut) Brachial plexus Omohyoid muscle Platysma muscle (outr Jugular venous arch 〔 inferior belly) Clavicle Stemocleidomastoid muscle (intact Pectorali r muscle Sternothyroid muscle Stemocleidomastoid muscle (cut
颈 静 脉 弓 Jugular venous arch