Regional Anatomy Part 7- Neck(Part 2 Region of the sternocleidomastoid INTERNATIONAL EDITION Hongqi zhang(张红旗) Dissector Dept of Anatomy, Histoembryology CEmail:zhanghg58@126.com
1 Regional Anatomy Part 7 – Neck (Part 2) Region of the sternocleidomastoid Hongqi Zhang (张红旗 ) Dept. of Anatomy,Histoembryology Email: zhanghq58@126.com
Review the contents last lecture ◆ Platysma ◆ Four cutaneous nn Two ant jugular vv. and two ext jugular vv, lymph node Sternocleadomastoid-med. and lat head at the origin Suprahyoid muscular group Infrahyoid muscular group-important Carotid sheath(common carotid a, vagus n, int jugular v. Thyroid-sup. inf, thyroid a v. mid thyroid v pInt. ext branch of sup. laryngeal n Clear up the boundary of the submental triangle Q Clean up the boundary of the submandibular triangle Identify: Submandibular triangle-facial V, hypoglossal n lingual a & n, duct of submandibular gland, Clear identify related blood vessels& nn. of the thyroid
Review the contents last lecture Platysma Four cutaneous nn. Two ant.jugular vv.and two ext.jugular vv.,lymph node Sternocleadomastoid-med.and lat. head at the origin Suprahyoid muscular group Infrahyoid muscular group- important Carotid sheath (common carotid a.,vagus n.,& int.jugular v.) Thyroid-sup.inf,thyroid a.v. mid.thyroid v. Int.& ext branch of sup.laryngeal n. Clear up the boundary of the submental triangle Clean up the boundary of the submandibular triangle Identify:Submandibular triangle-facial v.,hypoglossal n., lingual a.& n., duct of submandibular gland, Clear & identify related blood vessels & nn. of the thyroid
cervical fascia Pretracheal fascia 2 Thyroid gland Sternohyoid m Platysma m Sternothyroid m. Sternocleidomastoid m Common carotid artery Omohyoid m Intemal jugular vein Sympathetic trunk Vagus ne 2 Carotid sheath neal space Prevertebral fascia Trapezius m. cervical vertebra Superficial fascia Posterior Transverse section of the neck-indicating the fascia of the neck
Transverse section of the neck-indicating the fascia of the neck 1 2 2 3
parotid gland platysma great auricular facial sternocleidomastoid cervical branch of facial external jugular v submandibular gland splenius c laryngeal prominence accessory n」 transverse n, of neck trapezius nterior jugular v lateral supraclavicular n. medial supraclavicular n Intermediate supraclavicular n external jugular v. clavicle muscles, up blood vessels and nerve of the neck(right aspect
muscles,sup.blood vessels and nerve of the neck (right aspect)
Suprahyoid and infrahyoid muscle-8 Identify submental triangle(a) submandibular triangle(b a 2 Suprahyoid mm 1-Digastric m 6 2-Stylohyoid m 3 3-Mylohyoid m 5 6 4-Geniohyoid m Infrahyoid mm 5-Sternohyoid m aaSI 6-Omohyoid m 7-Sternothyroid m 8-Thyrohyoid m Post, view
Suprahyoid mm. 1-Digastric m. 2-Stylohyoid m. 3-Mylohyoid m. 4-Geniohyoid m. Infrahyoid mm. 5-Sternohyoid m. 6-Omohyoid m. 7-Sternothyroid m. 8-Thyrohyoid m. Suprahyoid and infrahyoid muscle ‐ 8 3 4 Post.view 1 2 3 5 7 8 6 6 Iderntify submental triangle (a) & submandibular triangle (b) a b b