File:Human embryo neck 01.jpg

Human Embryo Neck Region

Human embryo GI4 (26.5 mm GL; 8 weeks of development). Frontal section. Azocarmine staining. The cervical lamina (CL) extends towards the mandibular region enclosing the masseter muscle (MS). Arrowhead: infraorbital lamina.

Bar: 200 μm.

A: Facial artery B: Buccinator muscle BB: Buccal branches of the facial nerve BF: Anlage of the buccal fat pad CP: Capsula propria of the parotid gland C: Meckel’s cartilage CL: Cervical lamina D: Parotid duct DA: Depressor anguli oris muscle DE: Dermis DF: Deep layer of the temporal fascia EP: Epidermis FN: Facial nerve G: Submandibular node lymph I: Inferior alveolar nerve IN: Infraorbital nerve J: External jugular vein L: Lingual nerve M: Mandible MM: Marginal mandibular branch of the facial nerve MS: Masseter muscle MY: Mylohyoid muscle P: Anlage of the parotid gland PL: Platysma muscle SA: Superficial adipose layer SB: Submandibular gland SF: Superficial layer of the temporal fascia ST: Sternocleidomastoid muscle T: Temporalis muscle TA: Superficial temporal artery TE: Temporalis muscle TF: Temporalis branches of the facial nerve TL: Temporal lamina V: Facial vein Z: Zygomaticus major muscle ZP: Zygomatic process of the squamous part of the temporal bone.