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Intermediate Cutaneous Nerve
The anterior cutaneous branches of the femoral nerve consist of the following nerves: ''intermediate cutaneous nerve'' and ''medial cutaneous nerve''. Intermediate cutaneous nerve of thigh The intermediate cutaneous nerve (middle cutaneous nerve) pierces the fascia lata (and generally the sartorius) about 7.5 cm below the inguinal ligament, and divides into two branches which descend in immediate proximity along the forepart of the thigh, to supply the skin as low as the front of the knee. Here they communicate with the anterior division of lateral cutaneous nerve, the anterior division of medial cutaneous nerve and the infrapatellar branch of the saphenous, to form the patellar plexus. In the upper part of the thigh the lateral branch of the intermediate cutaneous communicates with the lumboinguinal branch of the genitofemoral nerve. Medial cutaneous nerve of thigh The medial cutaneous nerve (internal cutaneous nerve) passes obliquely across the upper part of the she ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Femoral Nerve
The femoral nerve is a nerve in the thigh that supplies skin on the upper thigh and inner leg, and the muscles that extend the knee. It is the largest branch of the lumbar plexus. Structure The femoral nerve is the major nerve supplying the anterior compartment of the thigh. It is the largest branch of the lumbar plexus, and arises from the dorsal divisions of the ventral rami of the second, third, and fourth lumbar nerves (L2, L3, and L4). The nerve enters Scarpa's triangle by passing beneath the inguinal ligament, just lateral to the femoral artery. In the thigh, the nerve lies in a groove between iliacus muscle and psoas major muscle, outside the femoral sheath, and lateral to the femoral artery. After a short course of about 4 cm in the thigh, the nerve is divided into anterior and posterior divisions, separated by lateral femoral circumflex artery. The branches are shown below: Muscular branches * The nerve to the pectineus muscle arises immediately above the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cutaneous Innervation Of The Lower Limbs
Cutaneous innervation of the lower limbs is the nerve supply to areas of the skin of the lower limbs (including the feet) which are supplied by specific cutaneous nerves. Modern texts are in agreement about which areas of the skin are served by which nerves, but there are minor variations in some of the details. The borders designated by the diagrams in the 1918 edition of ''Gray's Anatomy'', provided below, are similar but not identical to those generally accepted today. Pelvis and buttocks * Lumboinguinal nerve (green) and Ilioinguinal nerve (purple). In modern texts, these two regions are often considered to be innervated by the genitofemoral nerve. * Medial cluneal nerves (pink) - labeled as "post. division of sacral" * Inferior cluneal nerves (pink region, not designated with its own section) * Perforating cutaneous nerve (pink region, not designated with its own section) * Superior cluneal nerves (yellow) - labeled as "post. division of lumbar" * Iliohypogastric nerve (blue ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Great Saphenous Vein
The great saphenous vein (GSV; ) or long saphenous vein is a large, subcutaneous, superficial vein of the human leg, leg. It is the longest vein in the body, running along the length of the lower limb, returning blood from the foot, human leg, 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 Toe#Hallux, 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 Palpation, palpated), it runs up the medial (anatomy), 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 re ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Obturator Nerve
The obturator nerve in human anatomy arises from the ventral divisions of the second, third, and fourth lumbar nerves in the lumbar plexus; the branch from the third is the largest, while that from the second is often very small. Structure The obturator nerve originates from the anterior divisions of the L2, L3, and L4 spinal nerve roots. It descends through the fibers of the psoas major, and emerges from its medial border near the brim of the pelvis. It then passes behind the common iliac arteries, and on the lateral side of the internal iliac artery and vein, and runs along the lateral wall of the lesser pelvis, above and in front of the obturator vessels, to the upper part of the obturator foramen. Here it enters the thigh, through the obturator canal, and divides into an anterior and a posterior branch, which are separated at first by some of the fibers of the obturator externus, and lower down by the adductor brevis. An accessory obturator nerve may be present in ap ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Adductor Longus
In the human body, the adductor longus is a skeletal muscle located in the thigh. One of the adductor muscles of the hip, its main function is to Adduction, adduct the thigh and it is innervated by the obturator nerve. It forms the medial wall of the femoral triangle. Structure The adductor longus arises from the body of pubis inferior to pubic crest and lateral to pubic symphysis. It lies ventrally on the adductor magnus, and near the femur, the adductor brevis is interposed between these two muscles. Distally, the fibers of the adductor longus extend into the adductor canal. It is inserted into the middle third of the medial lip of the ''linea aspera''. Innervation As part of the medial compartment of the thigh, the adductor longus is innervated by the anterior division (sometimes the posterior division) of the obturator nerve. The obturator nerve exits via the anterior rami of the spinal cord from L2, L3, and L4.Saladin, Kenneth S. Anatomy & Physiology: The Unity of Form ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fascia Lata
The fascia lata is the deep fascia of the thigh. It encloses the thigh muscles and forms the outer limit of the fascial compartments of thigh, which are internally separated by the medial intermuscular septum and the lateral intermuscular septum. The fascia lata is thickened at its lateral side where it forms the iliotibial tract, a structure that runs to the tibia and serves as a site of muscle attachment. Structure The fascia lata is an investment for the whole of the thigh, but varies in thickness in different parts. It is thicker in the upper and lateral part of the thigh, where it receives a fibrous expansion from the gluteus maximus, and where the tensor fasciae latae is inserted between its layers; it is very thin behind and at the upper and medial part, where it covers the adductor muscles, and again becomes stronger around the knee, receiving fibrous expansions from the tendon of the biceps femoris laterally, from the sartorius medially, and from the quadriceps fem ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Femoral Artery
The femoral artery is a large artery in the thigh and the main arterial supply to the thigh and leg. The femoral artery gives off the deep femoral artery and descends along the anteromedial part of the thigh in the femoral triangle. It enters and passes through the adductor canal, and becomes the popliteal artery as it passes through the adductor hiatus in the adductor magnus near the junction of the middle and distal thirds of the thigh. The femoral artery proximal to the origin of the deep femoral artery is referred to as the ''common femoral artery'', whereas the femoral artery distal to this origin is referred to as the ''superficial femoral artery''. Structure The femoral artery represents the continuation of the external iliac artery beyond the inguinal ligament underneath which the vessel passes to enter the thigh. The vessel passes under the inguinal ligament just medial of the midpoint of this ligament, midway between the anterior superior iliac spine and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Genitofemoral Nerve
The genitofemoral nerve is a mixed branch of the lumbar plexus derived from anterior rami of lumbar nerves L1–L2. It splits into a genital branch and a femoral branch. It provides sensory innervation to the upper anterior thigh, as well as the skin of the anterior scrotum in males and mons pubis in females. It also provides motor innervation to the cremaster muscle (via its genital branch). Structure Origin The genitofemoral nerve is a branch of the lumbar plexus. It is derived from the anterior rami of lumbar nerves L1–L2. It coalesces within the substances of the psoas major muscle. Course It passes downwards, pierces the psoas major and emerges from its anterior surface. The nerve divides into two branches, the genital branch and the lumboinguinal nerve also known as the femoral branch, both of which then continue downwards and medially to the inguinal and femoral canal respectively. Branches Genital branch The genital branch continues downward on the s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Patellar Plexus
The patellar plexus is a nerve plexus within the subcutaneous tissue overlying and surrounding the patella and ligamentum patellae. It is a fine network of communicating nerve fibres. It is formed by the anterior division of lateral femoral cutaneous nerve, terminal branches of the intermediate femoral cutaneous nerve, terminal branches of the medial femoral cutaneous nerve, and the infrapatellar branch of saphenous nerve. References Nerves of the lower limb and lower torso Nerve plexus {{Portal bar, Anatomy ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lumboinguinal Branch
The lumboinguinal nerve, also known as the femoral or crural branch of genitofemoral, is a nerve in the abdomen. The lumboinguinal nerve is a branch of the genitofemoral nerve. The "femoral" part supplies skin to the femoral triangle area. Structure The lumboinguinal nerve arises from the genitofemoral nerve. It descends alongside the external iliac artery, sending a few filaments around it, and, passing beneath the inguinal ligament, enters the sheath of the femoral vessels, lying superficial and lateral to the femoral artery. Here, it pierces the anterior layer of the sheath of the vessels and the fascia lata, and supplies the skin of the anterior surface of the upper part of the thigh. On the front of the thigh it communicates with the anterior cutaneous branches of the femoral nerve. A few filaments from the lumboinguinal nerve may be traced to the femoral artery. Additional images File:Gray546.png, Structures passing behind the inguinal ligament. See also * Genitofe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Saphenous Nerve
The saphenous nerve (long or internal saphenous nerve) is the largest cutaneous branch of the femoral nerve. It is derived from the lumbar plexus (L3-L4). It is a strictly sensory nerve, and has no motor function. It commences in the proximal (upper) thigh and travels along the adductor canal. Upon exiting the adductor canal, the saphenous nerve terminates by splitting into two terminal branches: the sartorial nerve, and the infrapatellar nerve (which together innervate the medial, anteromedial, posteromedial aspects of the distal thigh). The saphenous nerve is responsible for providing sensory innervation to the skin of the anteromedial leg. Structure It is purely a sensory nerve. Origin The saphenous nerve is the largest and terminal branch of the femoral nerve. It is derived from the lumbar plexus (L3-L4). Course Shortly after the femoral nerve passes under the inguinal ligament, it splits into anterior and posterior divisions by the passage of the lateral femoral ci ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Medial Cutaneous Nerve
The anterior cutaneous branches of the femoral nerve consist of the following nerves: ''intermediate cutaneous nerve'' and ''medial cutaneous nerve''. Intermediate cutaneous nerve of thigh The intermediate cutaneous nerve (middle cutaneous nerve) pierces the fascia lata (and generally the sartorius) about 7.5 cm below the inguinal ligament, and divides into two branches which descend in immediate proximity along the forepart of the thigh, to supply the skin as low as the front of the knee. Here they communicate with the anterior division of lateral cutaneous nerve, the anterior division of medial cutaneous nerve and the infrapatellar branch of the saphenous, to form the patellar plexus. In the upper part of the thigh the lateral branch of the intermediate cutaneous communicates with the lumboinguinal branch of the genitofemoral nerve. Medial cutaneous nerve of thigh The medial cutaneous nerve (internal cutaneous nerve) passes obliquely across the upper part of the she ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
