True regarding surface anatomy of internal jugular vein ?
Ans. is 'b' i.e., Line passing from ear lobule to medial end of clavicle SURFACE MARKINGS OF IMPOANT VESSELS OF NECKSurface anatomy of internal jugular vein:Internal jugular vein is marked by a line joining a point on the neck, medial to the ear lobule to a point at the medial end of the clavicle.Surface anatomy of the external jugular vein:Marked by a line joining a point a little below and behind the angle of the mandible to a point on the clavicle just lateral to the posterior border of the sternocleidonastoid.Common carotid aery:Marked by a line joining a point on the sternovlavicular joint to a point on the anterior border of the sternocleidomastoid at the level of upper border of the thyroid cailage.Internal carotid aery:Marked by a line joining a point on the anterior border of the sternocleidommastoid at the level of upper border of thyroid cailage to a point on the posterior border of the condyle of the mandible.External carotid aery:Marked by a line joining a point on the anterior border of the sternocleidommastoid at the level of upper border of thyroid cailage to a point on the posterior border of the neck of the mandible.
Line passing from ear lobule to mid pt of clavicle
Line passing from ear lobule to medial end of clavic
Line joining ear lobule to lateral end of clavicle
Line joining mastoid process to mid pt of clavicle