one of several charts used in testing visual acuity. Letters, numbers, or symbols are arranged on the chart in decreasing size from top to bottom. A wall chart developed by a Dutch ophthalmologist Hermann Snellen in the 19th century, which is still used today to measure visual acuity.
Popliteal Nodes. The popliteal nodes, or popliteal lymph nodes, include six or seven nodes and are located in the legs near the knees at the popliteal fossa.They service the lower legs and feet for the lymphatic system.opliteal Nodes. The popliteal nodes, or popliteal lymph nodes, include six or seven nodes and are located in the legs near the knees at the popliteal fossa.
I had an abdominal CT and in the report it says periportal and peripancreatic lymph nodes present. 2. Get help from a doctor now âº. Lymphadenopathy: Lymph nodes are the the site of immune cells,B and T cells. Lymph,interstitial fluid,brings cells and bacteria, which are attacked in the node. had an abdominal CT and in the report it says periportal and peripancreatic lymph nodes present. 2. Get help from a doctor now âº. Lymphadenopathy: Lymph nodes are the the site of immune cells,B and T cells. Lymph,interstitial fluid,brings cells and bacteria, which are attacked in the node.