11/29/2025
Looking at the Lymphatic system shows why belly breathing helps to move fluid upward toward the cervical lymph nodes. Remember: lymph fluid has the tough job of climbing UPWARDS towards our initial lymph nodes, auxiliary lymph nodes and cervical lymph nodes and some of the vessels are right below the skin so be gentle when doing self MLD. No need to massage your muscles!
🌿 The Lymph Nodes: Structure, Sections & Functions
By Bianca Botha, CLT, RLD, MLDT & CDS
Property of Lymphatica – Lymphatic Therapy & Body Detox Facility
🌸 Overview
Lymph nodes are small, bean-shaped structures that act as filtration and immune response stations throughout the lymphatic system. Each node filters lymphatic fluid (lymph) from a specific region of the body, trapping pathogens, waste, and abnormal cells before the lymph is returned to the bloodstream.
There are approximately 600–700 lymph nodes in the human body, grouped into anatomical regions according to drainage zones.
🩵 1. Cervical Lymph Nodes (Neck Region)
Medical term: Nodi lymphatici cervicales
Subdivisions:
• Superficial cervical nodes – along the external jugular vein and under the sternocleidomastoid muscle.
• Deep cervical nodes – along the internal jugular vein.
• Submental & submandibular nodes – under the chin and jawline.
Function:
• Drain lymph from the scalp, face, nasal cavity, oral cavity, throat, and ears.
• Key role in immune defense for upper respiratory and oral infections.
• Commonly swollen with colds, tonsillitis, or sinus congestion.
💚 2. Axillary Lymph Nodes (Armpit Region)
Medical term: Nodi lymphatici axillares
Subdivisions:
• Pectoral (anterior) – along the chest wall and breast tissue.
• Subscapular (posterior) – along the back of the armpit.
• Central – deep within the axilla.
• Apical – near the clavicle.
• Lateral (humeral) – along the upper arm.
Function:
• Drain the upper limbs, chest wall, and breasts.
• Crucial for upper-body detoxification and immune response.
• Commonly assessed after breast surgery or infection.
💜 3. Supraclavicular & Infraclavicular Nodes
Medical term: Nodi lymphatici supraclaviculares / infraclaviculares
Function:
• Filter lymph from the neck, chest, and upper limbs before it enters the thoracic duct or right lymphatic duct.
• The left supraclavicular node (Virchow’s node) is medically significant — enlargement may indicate abdominal or thoracic pathology.
💗 4. Thoracic (Mediastinal) Lymph Nodes
Medical term: Nodi lymphatici mediastinales
Subdivisions:
• Anterior mediastinal nodes – near the thymus and heart.
• Posterior mediastinal nodes – near the esophagus and descending aorta.
• Bronchopulmonary (hilar) nodes – at the root of the lungs.
• Tracheobronchial nodes – along the trachea.
Function:
• Drain lymph from lungs, trachea, bronchi, and heart.
• Key in respiratory immune defense and removal of airborne toxins.
💛 5. Abdominal Lymph Nodes
Medical term: Nodi lymphatici abdominales
Subdivisions:
• Pre-aortic nodes – along the celiac, superior, and inferior mesenteric arteries.
• Para-aortic (lumbar) nodes – alongside the abdominal aorta.
• Mesenteric nodes – embedded in the mesentery of the small intestine.
Function:
• Filter lymph from digestive organs: stomach, intestines, liver, pancreas, and spleen.
• Vital for nutrient absorption, fat transport (via lacteals), and gut-immune balance.
💧 6. Pelvic Lymph Nodes
Medical term: Nodi lymphatici pelvici
Subdivisions:
• External iliac nodes – along the external iliac artery.
• Internal iliac nodes (hypogastric) – deep within the pelvic cavity.
• Sacral nodes – near the sacrum.
Function:
• Drain lymph from the pelvic organs (bladder, uterus, prostate, re**um).
• Important in lower abdominal detoxification and reproductive health.
🌿 7. Inguinal Lymph Nodes (Groin Region)
Medical term: Nodi lymphatici inguinales
Subdivisions:
• Superficial inguinal nodes – just under the skin in the groin crease.
• Deep inguinal nodes – along the femoral vein.
Function:
• Drain lymph from the lower limbs, external ge****ls, buttocks, and lower abdominal wall.
• Key focus for lymphatic drainage in cases of leg swelling or pelvic congestion.
💠 8. Popliteal Lymph Nodes (Behind the Knees)
Medical term: Nodi lymphatici poplitei
Function:
• Drain lymph from the lower leg, ankle, and foot before it ascends toward the groin.
• Often congested in individuals with chronic edema, varicose veins, or prolonged standing.
🌸 9. Cubital (Elbow) Lymph Nodes
Medical term: Nodi lymphatici cubitales
Function:
• Drain lymph from the forearm and hand.
• Often overlooked, yet essential in upper-limb lymphatic massage and post-injury care.
💚 10. Occipital, Mastoid & Parotid Nodes (Head & Scalp)
Medical terms:
• Nodi lymphatici occipitales – back of the skull
• Nodi lymphatici mastoidei – behind the ears
• Nodi lymphatici parotidei – in front of the ears and near the parotid gland
Function:
• Drain the scalp, ears, and outer face.
• Commonly enlarged during scalp infections, ear inflammation, or sinus issues.
🌍 11. Intestinal Lacteals
Medical term: Vasa lactea
Function:
• Specialized lymphatic capillaries within the intestinal villi that absorb dietary fats and fat-soluble vitamins (A, D, E, K).
• Transport these nutrients via the cisterna chyli to the thoracic duct, connecting gut and immune health.
🩷 12. The Thoracic Duct & Right Lymphatic Duct
Thoracic duct (Ductus thoracicus):
• Largest lymphatic vessel.
• Drains lymph from the left head, neck, thorax, abdomen, and both legs into the left subclavian vein.
Right lymphatic duct (Ductus lymphaticus dexter):
• Drains lymph from the right head, neck, chest, and arm into the right subclavian vein.
Together, they return purified lymph to the bloodstream, completing the detoxification loop.
🧠 Clinical Insight
• Swollen nodes = immune activation (infection, inflammation, or detox).
• Hard or immovable nodes may require medical investigation.
• Lymphatic drainage therapy helps stimulate stagnant nodes, enhance detox pathways, and reduce systemic inflammation.
📘 References
• Standring S. Gray’s Anatomy: The Anatomical Basis of Clinical Practice, 42nd Ed.
• Moore KL, Dalley AF, Agur AMR. Clinically Oriented Anatomy, 8th Ed.
• Leduc O, Leduc A. Lymphology and Lymph Drainage, Elsevier.
This article is for informational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always consult your healthcare provider before making changes to your health regimen.
