Venous and Lymphatic Draining of UE

Question 1

What is the difference between the R and L side for lymphatic drainage?

Answer 1

L side is responsible for 75% of the drainage and the thoracic trunk branches off of the L jugular and L subclavian trunks while the right side is only responsible for 25% of the drainage. The R side drains the R superior corner of the body

Question 2

What lymph nodes drain into the apical lymph node?

Answer 2

infraclavicular and central

Question 3

What lymph nodes drain into the central lymph node?

Answer 3

humeral, pectoral, subscapular

Question 4

What lymph node drains into the humeral lymph node?

Answer 4

supratrochlear

Question 5

What lymph nodes make up the axillary lymph nodes?

Answer 5

apical, central, pectoral, humeral, subscapular

Question 6

What is the function of the thoracic duct

Answer 6

drains left subclavian trunk into the left jugulo-subclavian junction

Question 7

What are the functions of the R and L subclavian trunks?

Answer 7

They drain apical nodes into the R lymphatic duct and the L thoracic duct

Question 8

What is the function of the humeral node?

Answer 8

drains lateral hand and forearm, medial arm, deep tissues of forearm and supratrochlear nodes

Question 9

What is the function of the pectoral node?

Answer 9

drains anterior thoracic wall and breast

Question 10

What is the function of the subscapular node?

Answer 10

drains posterior shoulder, posterior thoracic wall, and scapular region

Question 11

What is the function of the central node?

Answer 11

drains pectoral, humeral, and subscapular nodes into the apical node