Anterior Thoracic Wall Anatomy
Sternocleidomastoid muscle, Posterior triangle of neck, Trapezius muscle,
Perforating branches of internal thoracic artery and anterior cutaneous branches
of intercostal nerves, Pectoralis major muscle, Cephalic vein, Acromion, Cutaneous
branches of thoracoabdominal (abdominal portions of intercostal) nerves and
superior epigastric artery,
Rectus abdominis muscle, Internal abdominal oblique muscle, Body and xiphoid process of sternum, External intercostal muscles, External intercostal membranes anterior to internal intercostal muscles, Digitations of serratus anterior muscle. Digitations of serratus anterior muscle, Lateral cutaneous branches of intercostal nerves and posterior intercostal arteries, External abdominal oblique muscle, Anterior layer of rectus sheath, Sternalis muscle (inconstant), Linea alba. Clavicle, Subclavius muscle invested by clavipectoral fascia.
Rectus abdominis muscle, Internal abdominal oblique muscle, Body and xiphoid process of sternum, External intercostal muscles, External intercostal membranes anterior to internal intercostal muscles, Digitations of serratus anterior muscle. Digitations of serratus anterior muscle, Lateral cutaneous branches of intercostal nerves and posterior intercostal arteries, External abdominal oblique muscle, Anterior layer of rectus sheath, Sternalis muscle (inconstant), Linea alba. Clavicle, Subclavius muscle invested by clavipectoral fascia.
