Leg muscles anatomy

Muscles of the Leg – Part 2 – Anterior and Lateral Compartments – Anatomy Tutorial The muscles of the upper leg are very strong. They support your weight and help you move your hips and legs. Their jobs include: Anterior muscles: These muscles stabilize your body and help with balance. They also allow you to: • Bend and extend your knees. • Flex your thigh at your hip joints. • Rotate your legs at your hips. Medial muscles: These muscles help with hip adduction . They also allow you to flex, extend and rotate your thigh. Posterior muscles: Providers also call these the hamstring muscles. They help you move your leg from front to back and rotate it at the hip socket. Where Are The Lower Leg Muscles Located Your lower leg muscle anatomy includes: Anterior muscles: You have four muscles in the anterior part of the lower leg. They extend from your knee down to your foot. They are: • Extensor digitorum longus. • Fibularis tertius. • Tibialis anterior. Lateral muscles: The fibularis longus and fibularis brevis run along the outside of your lower leg. They start just below your knee and go down to your ankle. Posterior: The muscles in the posterior of your lower leg are: • Calf muscles, which include the gastrocnemius and the soleus. • Flexor digitorum longus. • Popliteus, which sits deeper in your leg just behind your knee joints. • Tibialis posterior. Where Are The Upper Leg Muscles Located The muscles in your upper leg run from your hips to your knee. Your upper leg muscle ana...

Overview Your quad muscles are five muscles on the front of your thigh. What are quad muscles? Your quad muscles, or quadriceps femoris, are a group of muscles at the front of your thigh. Together, they contain more mass than any other muscle group in your body. You use your quads to perform a variety of movements, including kicking, running, jumping and walking. In the past, experts believed there were four quad muscles. In Latin, the root “quad” means “four or fourth.” But recently, they discovered a fifth muscle in this group. Your quads are vulnerable to injuries, such as Your quad muscles are skeletal muscles. They’re voluntary muscles, meaning you control how they move and work. Some other muscles in your body, such as those in your Function What is the purpose of the quad muscles? The main purpose of your quad muscles is to help you straighten your knee. But they also: • Absorb force when your heel hits the ground. • Flex the hip. • Help maintain correct posture and balance. • Move and stabilize the patella (kneecap). • Regulate your gait (the way you walk). Anatomy Where are the quad muscles located? Your quad muscles are on the front of your thigh, above your knee and below your hip. Quad tendons attach them to your pelvis, hip bones, femur (thigh bones) and kneecaps. How are the quad muscles structured? The five quad muscles are: • Rectus femoris: This muscle has two heads, originating at your hip bone and pelvis. It stretches down to your knee cap. It’s the only...

The sartorius is also known as the "tailor's muscle." This is because it helps to flex and rotate your hip and flex your knee; if you were to sit with one leg crossed over the other, with the ankle on top of the other knee, then the sartorius muscle would be working. This position was often adopted by tailors when sewing seams by hand. • Flexion of your hip: This means that it bends your hip up as if you were marching. Other muscles, such as your psoas muscle, also flex your hip up. • External rotation of your hip: The sartorius has a line of pull across the front of your thigh, and this line of pull helps to rotate your hip outwards. If you are standing and lift your foot up and in to look at the bottom of your shoe, your sartorius would be active lifting and externally rotating your hip. • Flexion of your knee: The sartorius crosses to the inner side of your knee and attaches to the front of your shin bone. When the muscle contracts, it bends your knee. Your hamstrings also bend your knee, so the sartorius is most active with knee bending while your hip is flexed and rotated. • Sartorius tendonitis: • Sartorius tear: A tear to the sartorius may require a significant period of immobility and rest to allow for the muscle to heal. Once healing has taken place, your PT may work with you to improve • Pes anserine tendonitis: The hallmark of this condition is pain in the medial and front aspect of your upper shin bone just below your knee. Therapy can help you decrease pain an...

Your legs include many strong muscles. They allow you to do big and small movements. They also support your weight and stabilize your body so you can stand up straight. The muscles in your upper leg include your quadriceps and hamstrings. Your calf muscles work with other muscles of the lower leg to help you move your feet. Overview What are the leg muscles? You have many different muscles in your upper and lower leg. Together, these muscles help you walk, run, jump, stand on your toes and flex your feet (lift your toes up toward your knee). Your leg muscles work with your bones, tendons and ligaments to stabilize your body, support your weight and help you move. Muscle strains (tearing or stretching a muscle too far) in the legs are common injuries. They often result from strenuous exercise or overuse. To keep your leg muscles strong, you should warm up before physical activity. By maintaining a healthy weight and focusing on staying healthy overall, you can keep your leg muscles working properly. Function What is the purpose of the leg muscles? Your leg muscles help you move, carry the weight of your body and support you when you stand. You have several muscles in your upper and lower legs. They work together to enable you to walk, run, jump and flex and point your feet. What is the purpose of the lower leg muscles? Your lower leg muscles have many important jobs. They include: Anterior muscles: These muscles help you lift and lower your foot and extend your toes. They a...

Hamilton is making a point about how so many Americans are letting their leg muscles — and therefore their bodies — turn to mush. "You've seen the flat line on an EKG when all the doctors rush in? That's what's happening to your leg muscles when you're sitting," he adds. As he speaks, I flashback to a job I had at a digital agency: I showed up on my first day of work in the New York City office to find half the staff standing at their computers. Because they didn't have chairs. The office consisted mostly of makeshift desks about waist-high that we would belly up to bar height. (More: Turns out my hipster coworkers were onto something. "Standing while talking on the phone or filing isn't exercise by anybody's standard, yet compared with sitting, it increases your metabolic rate a bit," says Hamilton. In case you were wondering, doing "light office work" while sitting burns 96 calories an hour for an average 140-pound woman as opposed to 147 calories while standing, according to a widely accepted compendium of physical activity. But more importantly, "when we're sitting for extended periods, hundreds of 'bad' genes are turned on, including ones that stimulate muscle atrophy," adds Hamilton. (See also: True to the EKG analogy, the leg muscle readings on the EMG monitor are indeed flat lines when I sit in a chair — it's as if I'm not even there. But something happens when I stand up in front of the monitor: It fills with electrical activity. "You may not feel anything, but yo...

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 • • • • buttocks • gluteal region • • • • • • lateral rotator group • • • • • • thigh • • • • • • • • • • • • • • • • • • • • leg • • • • • • posterior compartments • • • • • • tarsal tunnel • • • • • • • • foot • dorsal • • • plantar • 1 st layer • • • • 2 nd layer • • • 3 rd layer • • • • 4 th layer ( • •

Overview What are the thigh muscles? The thighs contain some of the largest muscles in the body. The thigh muscles allow the lower body to bend, flex and rotate. They also bear most of the body’s weight, and keep the hips and legs aligned, in addition to providing and assisting with balance. Thigh muscles can be grouped based on their function and location: • Adductors. • Hamstrings. • Pectineus. • Quadriceps, often called the quads. • Sartorius. Function What is the purpose of the thigh muscles? Each group of muscles in the thigh has a different job: • Adductors: Allow you to bring the thighs toward each other, which is called adduction. They help you stay balanced, keep the legs and hips in alignment, and allow rotation through the hips and legs. • Hamstrings: Allow you to extend (tilt) your hip to move your leg behind your body, such as when you walk and put one leg behind you. They also let you flex (bend) your knee, like when you squat. • Pectineus: Enables you to flex and rotate the thigh at the hip joint. It also helps stabilize the pelvis. • Quadriceps: Allow you to flex your hip (for example, squatting or sitting) or extend the knee (standing or reaching the leg straight in front of you to take a step). • Sartorius: Helps you flex and rotate the thigh from the hip joint. You use it when you cross your legs to rest one ankle on the opposite leg. Other examples include sitting cross-legged on the floor or bending and rotating your leg to look at the bottom of your f...