Posterior leg muscle anatomy

The two layers are separated by a band of fascia. Tibialis posterior muscle O.

Compartments of the leg.

Posterior leg muscle anatomy. The posterior compartment of the leg contains seven muscles organised into two layers superficial and deep. The two layers are separated by a band of fascia. The posterior leg is the largest of the three compartments.

Collectively the muscles in this area plantarflex and invert the foot. The posterior muscles are natural antagonists to the anterior muscle group. Generally their main functions are plantarflexion inversion of the foot and flexion of the toes.

Additionally the natural tension of these muscles especially the tibialis anterior supports the medial arch of the foot. Namely the deep flexor muscles of the leg are. The posterior compartment also known as the plantar-flexor compartment.

Muscles in this compartment primarily plantar-flex the ankle joint flex the toes and invert the foot. Lets focus on the superficial group of the muscles in the posterior compartment of the leg first. The posterior or back leg muscles for the upper leg are the hamstrings.

The anterior or front upper leg muscles are the quadriceps. The medial or towards the middle of the body upper leg. The gastrocnemius is a two-headed muscle that forms the bulk of soft tissue on the posterior leg referred to as the calf.

The medial head of the gastrocnemius arises from the posterior surface of the medial condyle and the popliteal surface of the femoral shaft. Muscles of the Leg - Anterior - Lateral - Posterior - TeachMeAnatomy. Anterior view and posterior view of the human leg muscles anatomy.

In this image you will find Anterior superior iliac spine Iliopsoas Tensor fasciae latae Sartorius Iliotibial tract Rectus femoris Vastus lateralis Patella Patellar ligament Peroneus longus Extensor digitorum longus Inguinal ligament Femoral artery Femoral vein. The lower leg is divided into four compartments that contain the various muscles of the lower leg. Anterior lateral posterior and deep posterior.

These muscles can exert tremendous power while constantly making small adjustments for balance. Leg muscles work hard in supporting balancing and propelling the body. Try this amazing Anatomy Muscle Posterior Leg quiz which has been attempted 169 times by avid quiz takers.

Also explore over 9 similar quizzes in this category. The muscles of the lower limb are numerous and complex. Their origins and insertions are difficult to remember and they are best considered as parts of general functional groups.

Iliopsoas psoas major psoas minor iliacus buttocks gluteal r. Human Dissection Labs Human Dissection Labs Lower Limb Lower Limb Lower Limb Pre-Clinical Pre-Medical Regional Anatomy Tags. The superfcial group of muscles in the posterior compartment of the leg comprises three muscles-the gastrocnemius plantaris and soleus all of which insert onto the heel of the foot and plantarflex the foot at the ankle joint.

As a unit these muscles are large and powerful because they propel the body forward off the planted foot during walking and can elevate the body upward onto the toes. 3D anatomy tutorial on the muscles of the posterior compartment of the leg. This tutorial is in two parts the second part is on the muscles of the anterior.

The posterior thigh muscle group contains three muscles known as the biceps femoris semimembranosus and semitendinosus. They are located below the gluteus maximus. Can you pull a.

Compartments of the leg. The deep fascia of the leg sends 2 intermuscular septa anterior and posterior to the fibula. The 2 septae and interosseous membranes divide the leg into 3 compartments anterior lateral posterior.

A roughened area located on the posterior surface of the femur at the superior end of the lateral lip of the linea aspera. It is one of the insertion sites of the gluteus maximus m. Fibula N513TG3-08 TG3-09 the slender bone on the lateral side of the leg.

The fibula is not a weight-bearing bone it is a muscle attachment bone. 1 Enumerate the muscles of the posteriorflexor compartment of leg and their nerve supply. 2 Write the origin insertion and action of muscles of posterior compartment of leg.

3 Enumerate the muscles responsible for plantarflexion of foot. 4 Enumerate the structures passing deep to flexor retinaculum from medial to lateral. Tibialis posterior muscle O.

Proximal posterior surface of tibia medial surface of fibula and interosseus membrane I. Tendon passes posterior to medial malleolus deep to flexor retinaculum and inserts onto navicular bone all cuniform bones and base of metatarsals of digits 2-4. Leg Anatomy Summary.

This wraps up my synopsis of the leg anatomy. If you havent already done so be sure to visit the links at the end of each of the above section to get an in-depth and satisfying understanding of each muscle group within the leg anatomy. Here I showed the posterior compartment of leg muscles anatomy and I showed insertion and origin of each muscle and muscles anatomy.

Serratus posterior muscles inferior. Vertebrae T11 L3. Inferior borders of 9th through 12th ribs.

Depresses lower ribs aiding in expiration superior. Nuchal ligament or ligamentum nuchae and spinous processes of vertebrae C7 through T3. A Posterior muscles of the thigh and b posterior region of the lower leg.

The biceps femoris and synergistic semitendinosus and the semimembranosus muscles are responsible for flexing of the lower leg at the knee. Posterior view of muscles of the lower leg the popliteus can be seen at.