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Popliteal Lymph Nodes
The popliteal lymph nodes, small in size and some six or seven in number, are embedded in the fat contained in the popliteal fossa, sometimes referred to as the 'knee pit'. One lies immediately beneath the popliteal fascia, near the terminal part of the small saphenous vein, and drains the region from which this vein derives its tributaries, such as superficial regions of the posterolateral aspect of the leg and the plantar aspect of the foot. Another is between the popliteal artery and the posterior surface of the knee-joint. It receives afferents from the knee-joint, together with those that accompany the genicular arteries. The others lie at the sides of the popliteal vessels, and receive, as efferents, the trunks that accompany the anterior and posterior tibial vessels. The efferents of the popliteal lymph nodes pass almost entirely alongside the femoral vessels to the deep inguinal lymph nodes, but a few may accompany the great saphenous vein, and end in the glands of the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Deep Inguinal Lymph Nodes
Inguinal lymph nodes are lymph nodes in the human groin. Located in the femoral triangle of the inguinal region, they are grouped into superficial and deep lymph nodes. The superficial have three divisions: the superomedial, superolateral, and inferior superficial. Superficial inguinal lymph nodes * The superficial inguinal lymph nodes are the inguinal lymph nodes that form a chain immediately below the inguinal ligament. They lie deep to the fascia of Camper that overlies the femoral vessels at the medial aspect of the thigh. They are bounded superiorly by the inguinal ligament in the femoral triangle; laterally by the border of the sartorius muscle, and medially by the adductor longus muscle. They are divided into three groups: * inferior – inferior of the saphenous opening of the leg, receive drainage from lower legs * superolateral – on the side of the saphenous opening, receive drainage from the side buttocks and the lower abdominal wall. * superomedial – located a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Popliteal Fossa
The popliteal fossa (also referred to as hough, .html" ;"title="/sup>">/sup> or kneepit in analogy to the cubital fossa) is a shallow depression located at the back of the knee joint. The bones of the popliteal fossa are the femur and the tibia. Like other flexion surfaces of large joints (groin, armpit, cubital fossa and essentially the anterior part of the neck), it is an area where blood vessels and nerves pass relatively superficially, and with an increased number of lymph nodes. Structure Boundaries The boundaries of the fossa are: Roof Moving from superficial to deep structures, the roof is formed by: # the skin. # the superficial fascia. This contains the small saphenous vein, the terminal branch of the posterior cutaneous nerve of the thigh, posterior division of the medial cutaneous nerve, lateral sural cutaneous nerve, and medial sural cutaneous nerve. # the popliteal fascia. Floor The floor is formed by: # the popliteal surface of the femur. # the capsule of t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Popliteal Fascia
Popliteal refers to anatomical structures located in the back of the knee: *Popliteal artery *Popliteal vein *Popliteal fossa *Popliteal lymph nodes *Popliteus muscle *Popliteal nerves *Popliteal pterygium syndrome Popliteal pterygium syndrome (PPS) is an heredity, inherited condition affecting the face, Limb (anatomy), limbs, and genitalia. The syndrome goes by a number of names including the ''popliteal web syndrome'' and, more inclusively, the ''facio-geni ... {{disambig Lower limb anatomy ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Small Saphenous Vein
The small saphenous vein (also short saphenous vein or lesser saphenous vein) is a relatively large superficial vein of the posterior leg. Structure The origin of the small saphenous vein, (SSV) is where the dorsal vein from the fifth digit (smallest toe) merges with the dorsal venous arch of the foot, which attaches to the great saphenous vein (GSV). It is a superficial vein, being Subcutaneous tissue, subcutaneous (just under the skin). From its origin, it courses around the lateral aspect of the foot (inferior and posterior to the lateral malleolus) and runs along the posterior aspect of the leg (with the sural nerve), where it passes between the heads of the gastrocnemius muscle. This vein presents a number of different draining points. Usually, it drains into the popliteal vein, at or above the level of the knee joint. Variation Sometimes, the SSV joins the common gastrocnemius vein before draining in the popliteal vein. Sometimes, it does not make contact with the popliteal ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Popliteal Artery
The popliteal artery is a deeply placed continuation of the femoral artery opening in the distal portion of the adductor magnus muscle. It courses through the popliteal fossa and ends at the lower border of the popliteus muscle, where it branches into the anterior tibial artery, anterior and Posterior tibial artery, posterior tibial arteries. The deepest (most anterior) structure in the fossa, the popliteal artery runs close to the joint capsule of the knee as it spans the Intercondylar fossa of femur, intercondylar fossa. Five genicular branches of the popliteal artery supply the capsule and ligaments of the knee joint. The genicular arteries are the superior lateral, superior medial, middle, inferior lateral, and inferior medial genicular arteries. They participate in the formation of the periarticular genicular anastomosis, a network of vessels surrounding the knee that provides collateral circulation capable of maintaining blood supply to the leg during full knee flexion, which ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Knee
In humans and other primates, the knee joins the thigh with the leg and consists of two joints: one between the femur and tibia (tibiofemoral joint), and one between the femur and patella (patellofemoral joint). It is the largest joint in the human body. The knee is a modified hinge joint, which permits flexion and extension as well as slight internal and external rotation. The knee is vulnerable to injury and to the development of osteoarthritis. It is often termed a ''compound joint'' having tibiofemoral and patellofemoral components. (The fibular collateral ligament is often considered with tibiofemoral components.) Structure The knee is a modified hinge joint, a type of synovial joint, which is composed of three functional compartments: the patellofemoral articulation, consisting of the patella, or "kneecap", and the patellar groove on the front of the femur through which it slides; and the medial and lateral tibiofemoral articulations linking the femur, or thigh bone ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lymphatic Vessels
The lymphatic vessels (or lymph vessels or lymphatics) are thin-walled vessels (tubes), structured like blood vessels, that carry lymph. As part of the lymphatic system, lymph vessels are complementary to the cardiovascular system. Lymph vessels are lined by endothelial cells, and have a thin layer of smooth muscle, and adventitia that binds the lymph vessels to the surrounding tissue. Lymph vessels are devoted to the propulsion of the lymph from the lymph capillaries, which are mainly concerned with the absorption of interstitial fluid from the tissues. Lymph capillaries are slightly bigger than their counterpart capillaries of the vascular system. Lymph vessels that carry lymph to a lymph node are called afferent lymph vessels, and those that carry it from a lymph node are called efferent lymph vessels, from where the lymph may travel to another lymph node, may be returned to a vein, or may travel to a larger lymph duct. Lymph ducts drain the lymph into one of the subclavian ve ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Genicular Arteries
The genicular arteries (from Latin ''geniculum'', "knee") are six arteries in the human leg, five of which are branches of the popliteal artery, that anastomose in the knee region in the patellar network or ''genicular anastomosis''. They supply blood to the patella, together with contributions from the descending genicular artery, anterior tibial recurrent artery, and descending branch of lateral circumflex femoral artery. The descending genicular artery also known as the ''highest genicular artery'' is the only genicular artery to arise from the femoral artery and has the most superior or proximal origin of all six genicular arteries. Popliteal branches Five genicular arteries branch from the popliteal artery to form a network around the knee, the genicular anastomosis. The anastomosis provides collateral circulation in the event of damage to the region. Inferior or distal to the origin of the descending genicular artery are two superior genicular arteries: * Medial superior ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Femoral Vessels
The femoral vessels are those blood vessels passing through the femoral ring into the femoral canal thereby passing down the length of the thigh until behind the knee. These large vessel are the: * Femoral artery (also known in this location as the common femoral artery) and * Femoral vein Lymphatic vessels found in the thigh aren’t usually included in this collective noun. As the blood vessels pass along the thigh, they branch, with their main branches remaining closely associated, where they are still referred to collectively as femoral vessels. The adjective femoral, in this case, relates to the thigh, which contains the femur. The relative position of these two large vessels is very important in medicine and surgery, because several medical interventions involve puncturing one or the other of them. Reliably distinguishing between them is therefore important. The location of the vessel is also used as an anatomical landmark for the femoral nerve The femoral nerve is a n ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Great Saphenous Vein
The great saphenous vein (GSV, alternately "long saphenous vein"; ) is a large, subcutaneous, superficial vein of the leg. It is the longest vein in the body, running along the length of the lower limb, returning blood from the foot, leg and thigh to the deep femoral vein at the femoral triangle. Structure The great saphenous vein originates from where the dorsal vein of the big toe (the hallux) merges with the dorsal venous arch of the foot. After passing in front of the medial malleolus (where it often can be visualized and palpated), it runs up the medial side of the leg. At the knee, it runs over the posterior border of the medial epicondyle of the femur bone. In the proximal anterior thigh inferolateral to the pubic tubercle, the great saphenous vein dives down deep through the cribriform fascia of the saphenous opening to join the femoral vein. It forms an arch, the saphenous arch, to join the common femoral vein in the region of the femoral triangle at the sapheno-femoral ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Superficial Subinguinal
Inguinal lymph nodes are lymph nodes in the human groin. Located in the femoral triangle of the inguinal region, they are grouped into superficial and deep lymph nodes. The superficial have three divisions: the superomedial, superolateral, and inferior superficial. Superficial inguinal lymph nodes * The superficial inguinal lymph nodes are the inguinal lymph nodes that form a chain immediately below the inguinal ligament. They lie deep to the fascia of Camper that overlies the femoral vessels at the medial aspect of the thigh. They are bounded superiorly by the inguinal ligament in the femoral triangle; laterally by the border of the sartorius muscle, and medially by the adductor longus muscle. They are divided into three groups: * inferior – inferior of the saphenous opening of the leg, receive drainage from lower legs * superolateral – on the side of the saphenous opening, receive drainage from the side buttocks and the lower abdominal wall. * superomedial – located at t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lymph
Lymph (from Latin, , meaning "water") is the fluid that flows through the lymphatic system, a system composed of lymph vessels (channels) and intervening lymph nodes whose function, like the venous system, is to return fluid from the tissues to be recirculated. At the origin of the fluid-return process, interstitial fluid—the fluid between the cells in all body tissues—enters the lymph capillaries. This lymphatic fluid is then transported via progressively larger lymphatic vessels through lymph nodes, where substances are removed by tissue lymphocytes and circulating lymphocytes are added to the fluid, before emptying ultimately into the right or the left subclavian vein, where it mixes with central venous blood. Because it is derived from interstitial fluid, with which blood and surrounding cells continually exchange substances, lymph undergoes continual change in composition. It is generally similar to blood plasma, which is the fluid component of blood. Lymph returns pro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
