Content-7-Internal thoracic artery Internal thoracic a come from inferior wall of the first segment of subclavian a, General speaking: it's beginning part is at the opposite place to vertebral a. It is going down along both side of lat border of the sternum vertebral a Int thoracic a Int thoracic a
Content-7 – Internal thoracic artery Internal thoracic a. come from inferior wall of the first segment of subclavian a.,General speaking: it’s beginning part is at the opposite place to vertebral a..It is going down along both side of lat.border of the sternum. Int.thoracic a. Int.thoracic a. vertebral a
Observe the routine of subclavian a. its neighbouring Left right subclavian a from different origin the arteries both side locate the back of the sternoclavicular joint scalenus anterior. it is divided into 3 portions by scalenus anterior nferior 6 Middle scalene m thyroid a. vertebral a Transverse cervical a Dorsal scapular a thoracic duct he brachi recurrent subclavian a vagus n Common carotid artery (reflected) Vagus nerve(reflected) Left intemal jugular
Observe the routine of subclavian a.& its neighbouring Left & right subclavian a.from different origin.the arteries both side locate the back of the sternoclavicular joint & scalenus anterior.it is divided into 3 portions by scalenus anterior
Lateral region of the neck Sup. border of mid. 1/3 of clavicle Lat region of neck Ant border of trapezius Post border of scm Occipital triangle and supraclavicular fossa digastric digastric(anterior belly) (posterior belly) submandibular triangle submental triangle occipital triangle carotid triangle (Called omohyoid trapezius omohyoid(superior belly) trapezius triangle) omohyoid (inferior belly) muscular triangle greater supraclavicular fossa (Called omohyoid clavicle triangle)
Lateral region of the neck Lat.region of neck Sup.border of mid. 1/3 of clavicle Ant.border of trapezius Post.border of SCM Occipital triangle and supraclavicular fossa (Called omohyoid clavicle triangle) (Called omohyoid trapezius triangle)
The structures of supeficial layer EXt jugular v Parotid gland of facial nerve Masseter Dscend on the surface of SCM drainage to subclavian V, lesser Cutaneous branches of Great auricular cervical plexus Erb's point Externa O Supraclavicular nn. (med, lat Latecalsicprar jugular vein nerves intermidiate branches) Anterior TRansverse n of the neck of cervical fascia ● Greater auricualr n. ● Lesser occipital n
The structures of supeficial layer Ext.jugular v. Dscend on the surface of SCM.drainage to subclavian v., Cutaneous branches of cervical plexus: Supraclavicular nn. (med,lat & intermidiate branches); Transverse n.of the neck, Greater auricualr n. Lesser occipital n