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Test 3
pelvis/thigh & leg muscles
Term | Definition |
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Iliopsoas | A fused muscle composed of two muscles: (iliacus & psoas) major. It aids in hip flexion and acts to keep the upper body from falling backward when we are standing erect. |
Sartorius | It is a (thin, straplike muscle.) It is the most superficial muscle of the thigh. |
Adductor Muscle | Form the muscle mass at the medial side of each thigh. They (press the thighs together.) Their origins are on the pelvis and insert on the proximal aspect of the femur. |
Gracilis | One of the muscles (found in the groin.) It starts at the on the pubic bone and extends down to the upper medial shaft of the tibia. It is responsible for hip adduction and assists knee flexion. |
Iliotibial tract | It is a thick strip of connective tissue connecting several muscles in the (lateral thigh.) It plays an important role in the movement of the thigh by connecting hip muscles to the tibia of the lower leg. |
Biceps femoris | One of the three muscles that make up the hamstring. It is a (double-headed muscle located on the back of the thigh.) It consists of two parts. |
Semitendinosus | One of the three muscles that make up the hamstring. This muscle begins at the (inner surface of the base of the pelvis) and the sacrotuberous ligament. |
Semimembranosus | One of the three muscles that make up the hamstring. It is found on the (back of the thigh) and runs from the base of the pelvis to the back of the tibia. The semimembranosus muscle is attached to the pelvis and tibia via tendons. |
Fibularis longus | A muscle inside the outer area of the leg, which everts (bends in an outward direction) and flexes the ankle. The muscle is attached to the head of the fibula and is controlled by the fibular nerve. |
Tibialis anterior | This muscle is the (largest muscle located in the anterior compartment of the leg.) In general, muscles of this compartment help to flex the foot in an upward direction at the ankle and also extend the toes. |
Gastrocnemius | A (two-bellied muscle) that forms the curve of the calf of the posterior leg. It is called the ("toe-dancer's" muscle) because it is a mover for plantar flexion of the foot. |
Soleus | (Deep to the gastrocnemius) is this fleshy muscle. It arises on the tibia and fibula and inserts into to calcaneal tendon and is a strong plantar flexor of the foot. |
Calcaneal tendon (Achilles tendon) | This is a (posterior leg tendon) — a fibrous connective tissue that joins muscles in the back of the leg. It is formed when the soleus muscle tendon joins with the gastrocnemius tendon. |
Rectus femoris | A muscle in the quadriceps, this muscle is attached to the hip and helps to extend or raise the knee. This muscle is also (used to flex the thigh). This muscle is the only muscle that can flex the hip. |
Vastus lateralis | This muscle is located on the side of the thigh. This muscle is the (largest of the quadriceps group) often called quads which also includes the rectus femoris, the vastus intermedius, and the vastus medialis |
Vastus medialis | This muscle is a part of the quadriceps muscle group, located on the front of the thigh. It is the (most medial, or inner, of the quadriceps muscles). It extends the entire length of the thigh. |
Extensor digitorum longus | This muscle is located at the front of the leg and is adjacent to the peroneus brevis muscle and the tibialis anterior muscle. This (wing-shaped muscle) works to extend the foot at the ankle, along with the four smallest toes. |