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What is Fascia over the posterior triangle is pierced by: and explain in detail?
Ans. C. External jugular veinExternal jugular veina. Posterior triangle boundariesb. In front- posterior border of sternomastoidc. Behind- Anterior border of trapeziusd. Base- Claviclee. Roof- Skin, superficial fascia, platysma and investing layer of deep cervical fasciaf. Investing layer of deep cervical fascia is pierced by branches of cervical plexus and external jugular veins