<prompt> Clavipectoral fascia is derived from which ligamentCoracoacromialCoracoclavicularCostoclavicularCostocoracoid  <response>: CLAVIPECTORAL FASCIAStrong fascial sheet deep to clavicular head of pectoralis major muscle.Fills space between clavicle and pectoralis major.Extend:-Verically-clavicle above to axillary fascia below.Medially-first rib and costoclavicular ligament.Laterally- coracoid process and blends with coracoclavicular ligament.The thick upper pa of fascia extending from first rib near costochondral junction to the coracoid process is called costocoracoid ligament.Clavipectoral fascia encloses two muscles- subclavius and pectoralis major.Structures piercing:-1. Thoracoacromial aery 2. Apical group of axillary lymph nodes.3. Lateral pectoral nerve.4. Cephalic veinReference: Vishram Singh, pg no.43 