Lymph Node Flashcards
Lymphatic Circulation
Deal with the excess tissue fluids (Lymph)
Superficial Lymphatic vessels
Follow Veins
Deep lymphatic vessels
Follow arteries
Cervical Lymph node
Draining the head and neck
Axillary
Armpit, filtering lymph from the upper limb
Bronchial
Respiratory system airways
Mesenterc
Intestines throughout the abdominal cavity
Inguinal Nodes
Lymph from the lower limb
Lymph Nodes
lymph is modified with white blood cells.
Responsible for production of antibodies against pathogens and phagocytosis removal of foreign matter.
Swelling = Infection in that part of the body
Capsule
Loose Connective tissue around the node
Afferent Lymphatic vessels
Brings lymph into the node
Cortext
Outer part of the node
Medulla
Inner part of the node
Trabeculae
Extend inward from the capsule, dividing the cortex
Lymphatic Follicles
Pale germinal centers that contain high WBC activity
Passage of Lymph
Afferent Lymphatic vessels -> cortex -> cortical sinus -> medulla -> medullary sinuses -> efferent lymphatic vessles
Hilum
Blood vessels and efferent lymphatic vessels
Efferent Lymphatic Vessels
Allow for passage of lymph out of the node
Fewer than afferent, but are bigger in diameter
Include valves for one way flow
Passage of Lymph (Body)
ALL Lymph enters the thoracic duct or right lymphatic duct and Drain into the subclavian vein and back to the heart.
Metastasis can be spread in this way.
