Information about Posterior Compartment Of Leg

Arteries are muscular blood vessels that carry blood away from the heart.^[1] All arteries, with the exception of the pulmonary and umbilical arteries, carry oxygenated blood.

The circulatory system is extremely important for sustaining life.
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The posterior tibial artery of the lower limb carries blood to the posterior compartment of the leg and plantar surface of the foot, from the popliteal artery. It is accompanied by a deep vein, the posterior tibial vein, along its course.
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A nerve is an enclosed, cable-like bundle of axons (the long, slender projection of a neuron). Neurons are sometimes called nerve cells, though this term is technically imprecise since many neurons do not form nerves, and nerves also include the glial cells that
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The tibial nerve is a branch of the sciatic nerve. The tibial nerve passes through the popliteal fossa to pass below the arch of soleus.

In the popliteal fossa the nerve gives off branches to gastrocnemius, popliteus, soleus and plantaris, and the sural nerve.
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The tibial nerve is a branch of the sciatic nerve. The tibial nerve passes through the popliteal fossa to pass below the arch of soleus.

In the popliteal fossa the nerve gives off branches to gastrocnemius, popliteus, soleus and plantaris, and the sural nerve.
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Plantarflexion is the movement which increases the angle between the foot and the leg, as when depressing an automobile pedal. The word "Plantar" translates as "toward the sole" ("Planta").

The movement in the opposite direction is Dorsiflexion.
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The popliteus muscle in the leg is used to unlock the knee by laterally rotating the femur on the tibia during a closed chain movement (such as one with the foot in contact with the ground).
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The Flexor hallucis longus muscle (FHL) is a muscle of the leg. It is one of the deep muscles of the posterior compartment of the leg. the other deep muscles of the leg are flexor digitorum longus and tibialis posterior. FHL is the largest and most powerful of these deep muscles.
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The Flexor digitorum longus is situated on the tibial side of the leg. At its origin it is thin and pointed, but it gradually increases in size as it descends.

Origin and insertion

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The Tibialis posterior is the most central of all the leg muscles.

It is the key stabilising muscle of the lower leg.

Origin and insertion

It originates on the inner posterior borders of the tibia and fibula.
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The calf or gastrosoleus is a pair of muscles—the gastrocnemius and soleus—at the back of the lower human leg.

The gastrosoleus complex is connected to the foot through the Achilles tendon, and contract to induce plantar flexion and stabilization of the
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muscle is a powerful superficial muscle that is in the back part of the lower leg (the calf). It runs from its 2 heads just above the knee to the heel, and is involved in standing and walking. Along with the soleus muscle it forms the calf muscle.
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In humans and some other mammals, the soleus is a powerful muscle in the back part of the lower leg (the calf). It runs from just below the knee to the heel, and is involved in standing and walking.
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Plantaris is a vestigial structure and one of the superficial muscles of the posterior crural compartment of the leg.

It is innervated by the tibial nerve (S1, S2).
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Georgetown University is a private, Jesuit, research university, located in Washington, D.C.'s Georgetown neighborhood. Father John Carroll founded the school in 1789, though its roots extend back to 1634.
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Dartmouth College is a private, coeducational university located in Hanover, New Hampshire, USA. Incorporated as "Trustees of Dartmouth College,"^[6][7]
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Human anatomy is primarily the scientific study of the morphology of the adult human body.^[1] It is subdivided into gross anatomy and microscopic anatomy.^[1]
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In common usage, a human leg is the lower limb of the body, extending from the hip to the ankle, and including the thigh, the knee, and the cnemis.^[1] The largest bone in the human body, the femur, is in the leg.
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In humans the thigh is the area between the pelvis and buttocks and the knee. Anatomically, it is part of the lower limb.

The single bone in the thigh is called the femur.
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The inguinal ligament is a band running from the pubic tubercle to the anterior superior iliac spine. Its anatomy is very important for operating on hernia patients.

It forms the base of the inguinal canal which is the place from where the inguinal hernia develops.
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The obturator membrane is a thin fibrous sheet, which almost completely closes the obturator foramen.

Its fibers are arranged in interlacing bundles mainly transverse in direction; the uppermost bundle is attached to the obturator tubercles and completes the obturator canal
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The femoral ring is the base of the femoral canal. It is directed upward and is oval in form, its long diameter being directed transversely and measuring about 1.25 cm.
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femoral canal, and contains some lymphatic vessels and a lymph gland imbedded in a small amount of areolar tissue. The femoral canal is conical and measures about 1.25 cm. in length.
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The femoral sheath (crural sheath) is formed by a prolongation downward, behind the inguinal ligament, of the fasciæ which line the abdomen, the transversalis fascia being continued down in front of the femoral vessels and the iliac fascia behind them.
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The femoral triangle (of Scarpa) is an anatomical region of the upper inner human thigh.

Boundaries

It is bounded by:

• (superiorly) the inguinal ligament
• (medially) the adductor longus muscle border) (medial border)

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The adductor canal (Subsartorial/Hunter’s canal) is an aponeurotic tunnel in the middle third of the thigh, extending from the apex of the femoral triangle to the opening in the Adductor magnus, the Adductor hiatus.
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The adductor hiatus is the termination of the adductor canal at the knee, in the adductor magnus.

The femoral artery and femoral vein pass through the hiatus in adductor magnus. After they do, they are called the popliteal artery and popliteal vein.
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The fascia lata is the deep fascia of the thigh. It is an investment for the whole of the thigh, but varies in thickness in different parts.

Thus, it is thicker in the upper and lateral part of the thigh, where it receives a fibrous expansion from the Glutæus maximus, and
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saphenous opening (or saphenous hiatus, or fossa ovalis femoris).

It transmits the great saphenous vein, and other, smaller vessels.

The fascia cribrosa, which is pierced by the structures passing through the opening, closes the aperture and must be
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