MRCP UK EXAMINATIONS

ABDOMINAL

GENERALISED LYMPHADENOPATHY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Of the two collecting ducts in your lymphatic system, which one drains more lymph?
A
left lymphatic duct
B
right cervical duct
C
thoracic duct
D
right lymphatic duct
Explanation: 

Detailed explanation-1: -The thoracic duct is the largest lymphatic vessel in the human body. Around 75% of the lymph from the entire body (aside from the right upper limb, right breast, right lung and right side of the head and neck) passes through the thoracic duct.

Detailed explanation-2: -The pre-and para-aortic lymphatics drain into the cisterna chyli which is an elongated sac-like vessel that lies over the body of L1 and L2 behind the inferior vena cava and between the aorta and the azygous vein. It becomes the thoracic duct as it ascends through the diaphragm at the level of T12.

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