Where is the sartorius muscle located


The sartorius muscle is a long, thin muscle located in the anterior compartment of the thigh, extending from the hip to the knee. It is the longest muscle in the body and is often called the “tailor’s muscle“, as its location is associated with a tailor sitting cross-legged in a tailor’s position. It is involved in various activities including flexion, extension, abduction and adduction of the hip joint as well as knee flexion.

Read on to learn more about this important muscle.

Overview of the sartorius muscle

The sartorius muscle is a broad, long muscle of the thigh that originates from the anterior superior iliac spine and runs along the length of the femur (thigh bone). It then passes obliquely across in front of the thigh and inserts into the medial aspect of the tibia (shin bone).

This muscle is responsible for several movements of the knee, hip, and leg. It not only helps with flexion, abduction and External rotation at the hip joint but it also helps with medial rotation and bending at knee joint. The sartorius plays an important role in stance and balance as well as basic activities such as walking.


The sartorius muscle is an important muscle located in the thigh region. It is one of the longest muscles in the body and has a unique shape that makes it easy to identify amongst the many other muscles in the region.

This article will explore the anatomy of the sartorius muscle, including:

  • Location
  • Innervation
  • Function

Location of the sartorius muscle

The sartorius muscle is a long, narrow muscle located on the anterior side of the thigh. It extends from the upper portion of the pelvis, travels down and across to the inner side of the knee and inserts into the outer surface of the tibia bone. It is one of four muscles known as your “Quadriceps” which are necessary for strong leg performance.

The sartorius muscle is responsible for bending (flexing), rotating and sliding movements of your hip and thigh. It can help move your leg up and back, or to turn it outwards while standing or sitting. With feet planted firmly on the ground it can assist in stabilizing your knees when dealing with everyday activities such as ascending/descending stairs or curbs, as well as balancing yourself when standing on one leg.

In addition to its functional purpose within movements involving flexion, extension, abduction and adduction along with rotation at your hip; this muscle also contributes to external hip rotation while raising your leg in activities such as Yoga poses or high kick dance moves! Along with that it plays an important role in extending (lifting) your upper body off a chair or other object that you are sitting on due to its direct attachment from both your spine area in addition its connection to femur–or thigh bone. As such it make take longer than normal for wounded athletes who suffer from a strain or tear in this specific muscle location up until full range flexion is regained throughout their therapy sessions.

Structure of the sartorius muscle

The sartorius muscle is one of the longest muscles in the body. It originates from the anterior superior iliac spine, which is the corner of the pelvis where the top of the leg meets the torso, and runs along a diagonal course down to its insertion point – just below the medial condyle (the rounded knob on either side) of your tibia, or shinbone. The muscle works as a flexor of both hip and knee joints, as well as an internal rotator of the hip joint.

The sartorius muscle connects with two other muscles – gracilis and semitendinoussus. It runs along and wraps around four different sites: adductors longus, gracilis, semimembranoussus and tensor fascia lata. Together they create a “fascia” – an extracellular matrix that binds them together yet allows them to remain separate. The fascia prevents muscles from sticking together during movement, allowing for better range of motion and ensuring that each muscle can contract independently from its surrounding counterparts.


The sartorius muscle is a long, thin muscle located in the anterior compartment of the thigh. It is a flexor of the hip joint and helps to medially rotate the thigh. It is also a weak extensor of the knee joint, allowing for flexion and abduction of the thigh. In addition, the sartorius muscle helps to stabilize the knee and hip joints.

Role of the sartorius muscle in movement

The sartorius muscle is a long and slender muscle located in the front of the thigh. This muscle originates from the anterior superior iliac spine (ASIS), runs diagonally across the anterolateral thigh and inserts below the medial condyle of the tibia.

The sartorius muscle functions by flexing, rotating and stabilizing the hip joint and by flexing, extending, abducting and rotating the knee joint. Together with other muscles in its group (also known as “sartorial group“) it serves to laterally rotate, flex and extend at both hip and knee joints.

  • Flexion at either hip or knee can be used for daily activities such as sitting upright or squatting down by lowering your leg beneath a chair or surface.
  • At both joints, it also assists rotational movements that affect activities such as when crossing one’s legs while seated or to turn a corner while walking or running.
  • In addition to those movement tasks, this muscle plays an important role in stabilizing against unexpected movement forces by tightening reflexively when muscles surrounding it move too quickly causing a force imbalance between low-torque body parts moving too fast versus high-torque muscles resisting their motion.

Other roles of the sartorius muscle

The sartorius muscle’s primary function is to bend the knee and rotate the thigh, allowing for walking and other activities. However, it also performs a variety of other important roles throughout the body.

The sartorius is an important hip flexor which helps facilitate bending from the waist when sitting or standing. It is responsible for flexing (lifting) the thigh during walking, running and other activities such as climbing stairs. It stabilizes the knee joint and prevents medial rotation of the tibia (shinbone). Additionally, it helps in aiding abduction of leg during movement like hopping and kicking a ball.

The sartorius also has some consequences beyond its role in movement. One of these roles includes external oblique muscles helping to compress your abdominal cavity while expelling gas or eliminating waste. The sartorius muscle helps reduce spinal compression when lifting heavy objects. Finally, it plays a role in balance; when you stand on uneven terrain, it helps maintain balance by contracting your body slightly towards one side if necessary.

In sum, there are many functions associated with the sartorius muscle besides its main purpose of bending and rotating your knees and thighs:

  • it acts as a hip flexor,
  • stabilizes knee joint movements,
  • reduces spinal compression when lifting heavy objects, and
  • aids in balancing your body when standing on uneven terrain.

Clinical Significance

The sartorius muscle is an important muscle in the human body as it has many different clinical implications. It is used for knee flexion, hip flexion, abduction, adduction and internal rotation of the hip joint. In addition, knowing the location of the sartorius is important for physical therapists and medical professionals in order to provide accurate diagnosis and treatment for certain medical conditions.

Let’s explore the clinical significance of the sartorius muscle:

Sartorius muscle injuries

Injuries to the sartorius muscle, which is located in the upper thigh, can happen in both sports and everyday life. Most commonly, a sartorius muscle strain occurs due to repetitive motions or overstretching. This type of injury often causes a popping sensation and localized pain when the muscle is moved.

If left untreated, a sartorius muscle strain can worsen and it can take several months to recover from such an injury. Symptoms may include limited range of motion due to stiffness, swelling around the injured area, tenderness when touched or pressure applied, bruising on the skin’s surface, and difficulty in walking or standing. There may also be twinges of pain when movement occurs that involves flexing or stretching of the leg.

In order to diagnose a sartorius muscle strain reliably, medical imaging such as an MRI scan can be used. MRIs allow very detailed visualization of soft tissue injuries that are too small to detect with other imaging methods.

Treatment will vary depending on the severity of the injury but generally consists of therapy with rest periods in between active rehabilitation exercises such as stretches and strengthening exercises for building up muscles around the area for stability and support. In certain cases surgery may be required if there is a complete tear present in order for complete healing to occur.

Sartorius muscle pain

Sartorius muscle pain is a common complaint in those who perform physical activities that involve movement of the lower extremities such as running, cycling, and sports such as soccer or football. The sartorius muscle is located at the front of your thighs from hip to knee and it’s used for flexing and rotating your leg. When overused or strained due to activities, it can become very painful.

The primary symptom associated with sartorius muscle pain is a dull ache or soreness which usually occurs at the origin of the muscle at the top of your thigh. You may also feel shooting pains at other points along its length, as well as numbness and tingling sensation in certain areas. These symptoms can be felt at rest, but may worsen when you move your legs through different motions such as walking up stairs or during general exercise.

In more severe cases of sartorius muscle pain, you may experience swelling around the area and difficulty getting around without assistance due to severe weakness in your muscles. It is important to rest any area which causes you pain if it persists for more than a few days so that you don’t make matters worse.

Some stretches and strengthening exercises can help improve blood flow to the area which can reduce pain over time. Additionally, therapy or even surgery may be necessary in some cases if damage has been done to the tissue itself that requires repair or manipulation before further use is possible again without discomfort.


The sartorius muscle is a long thin muscle located in the front of the thigh. It originates from the anterior superior iliac spine and inserts into the medial surface of the tibia. It contributes to hip flexion, thigh abduction, external rotation of the thigh, and knee flexion.

This article will provide a comprehensive summary of the sartorius muscle, including its:

  • Origin
  • Insertion
  • Innervation
  • Actions

Summary of the sartorius muscle

The sartorius muscle is a long, thin muscle located in the thigh. It originates at the top of the pelvis and runs diagonally across the thigh to attach to the outer surface of the knee joint. Due to its length and diagonal pattern, the sartorius is sometimes referred to as “the tailor’s muscle”.

The primary action of the sartorius muscle is hip flexion combined with knee flexion and medial (inward) rotation. This allows for various activities such as sitting cross-legged, lowering down into a squatting position, and standing on one leg. It also plays a key role in providing stability to both joints when standing or walking for extended periods of time. Since it crosses multiple joints and contributes to postural stability, tightness in this muscle can lead to pain in both hip and knee joints as well as low back pain.