MICROANATOMY

BLOOD CARDIOVASCULAR SYSTEM LYMPHOID ORGANS

LYMPH NODES

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
What lymph nodes are found on the inside of the elbow?
A
supratrochlear
B
axillary
C
abdominal
D
inguinal
Explanation: 

Detailed explanation-1: -Cubital lymph nodes situated superior to the medial epicondyle of the humerus are known as the supratrochlear nodes. The supratrochlear nodes (1-2 lymph nodes) are a subgroup of the cubital lymph nodes and specifically function to drain lymph from fingers 3-5 and the medial portions of the forearm.

Detailed explanation-2: -The epitrochlear nodes are located in the subcutaneous connective tissue on the medial aspect of the elbow, about 4–5 cm above the humeral epitrochlea. As a general rule, the epitrochlear station drains the lymph from the last two or three fingers and from the medial aspect of the hand itself.

Detailed explanation-3: -Epitrochlear or supratrochlear nodes are located superficial to the deep fascia of the arm and medial to the basilic vein and proximal to the medial epicondyle.

Detailed explanation-4: -Answer. Mike, there are indeed lymph nodes near the elbows and behind the knees. The ones near the elbows are called epitrochlear nodes and are located on the triceps side; the ones behind the knee are called popliteal nodes.

Detailed explanation-5: -The masses of the elbow region can be of nodal or extranodal origin. Nodal masses are acute lymphadenitis (cutaneous infections, cat scratch disease), tubercular lymphadenitis, sarcoidosis-related lenfadenitis, lymphadenitis due to foreign bodies or IV drug abuse, lymphomas, and metastatic lymphadenopathies.

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