ANATOMY

Detailed explanation-1: -The tributaries of the internal jugular include the inferior petrosal sinus, facial, lingual, pharyngeal, superior and middle thyroid, and, occasionally, the occipital vein. The blood collected from these vessels then drains to the brachiocephalic vein and into the right atrium.

Detailed explanation-2: -The function of the external jugular vein is to drain blood from the superficial structures of the cranium and the deep portions of the face.

Detailed explanation-3: -The jugular veins are major blood vessels that stretch from your head to your upper chest. Typically, there are three pairs of jugular veins-six in total-each of which directs blood from different areas of your head toward your heart.

Detailed explanation-4: -jugular vein, any of several veins of the neck that drain blood from the brain, face, and neck, returning it to the heart via the superior vena cava. The main vessels are the external jugular vein and the interior jugular vein.

Detailed explanation-5: -As the internal jugular vein runs down the lateral neck, it drains the branches of the facial, retromandibular, and the lingual veins.