Venous Access — Subclavian Vein

Origin

• Continuation of axillary vein
• Lateral border of 1^st rib

Course

• Follows subclavian artery
• Deep to clavicle
• Superior to 1^st rib

Termination

• Deep to sternoclavicular joint at medial border of scalenus anterior
• Joints internal jugular vein to form bilateral brachiocephalic veins vein on left

Relations

• Anterior
  • Clavicle, subclavius
• Posterior
  • Subclavian artery runs deep/posterior (separated by scalenus anterior)
  • Internal mammary artery is posterior medially
  • Phrenic nerve is posterior
• Superior
  • Skin, superficial aponeurosis
• Inferior
  • Apex of lung and 1^st rib
• Medial
  • Brachiocephalic trunk, thoracic duct and trachea and vagal trunks
• Lateral
  • Inferior trunk of brachial plexus

Surface Anatomy

• Clavicle
• Deltopectoral groove
• 2 heads of sternocleidomastoid
• Suprasternal notch

Sakurai 2016

Answer by Sakurai