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Muscle Man pt. 3
| Term | Definition |
|---|---|
| iliopsoas | a fused muscle composed of 2 muscles: iliacus & psoas major. It tuns from the iliac bone & lower vertebrae deep inside the pelvis to insert on the lesser trochanter of the femur. It aids in hop flexion & acts to keep the upper body from falling backward |
| sartorius | thin, straplike muscle; it is the most superficial muscle of the thigh. It runs obliquely across the thigh from the anterior iliac crest to the medial side of the tibia. It aids in bringing the legs to a crossed position |
| adductor muscle | form the muscle mass at the medial side of each thigh. They press the thighs together. Their origins are on the pelvis & insert on the proximal aspect of the femur |
| gracilis | one of the muscles found in the groin. It starts on the pubic bone & extends down to the upper medial shaft of the tibia. It is responsible for hip adduction & assists knee flexion |
| iliotibial tract | think stip 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 | 1 of the 3 muscles that makeup the hamstring; double-headed muscle located on the back of the thigh; two parts: long head & short head; important for knee flexion, internal & external rotation, & hip extension |
| semitendinosus | 1 of the 3 that makeup the hamstring; begins at inner surface of the base of the pelvis & sacrotuberous ligament; inserts at the medial tibial condyle; middle hamstring muscle that aids in flexing the knee & extend the hip |
| semimembranosus | 1 of the 3 muscles that makeup the hamstring; back of the thigh & runs from base of pelvis to back of tibia; attached to pelvis & tibia via tendons; enabling leg to flex & rotate, & serving as a thigh extensor |
| fibularis longus | muscle inside outer area of leg, which everts & flexes the ankle; attached to head of fibula & controlled by fibular nerve; runs the length of fibula & turns into a tendon |
| extensor digitorum longus | located at the front of leg & adjacent to peroneus brevis muscle & tibialis anterior muscle; wing-shaped; extends foot at the ankle, along with the 4 smallest toes |
| tibialis anterior | largest muscle located in the anterior compartment of leg; help flex the foot in upward direction at ankle & also extend the toes |
| gastrocnemius | 2-bellied muscle that forms the curve of calf of posterior leg; "toe dancer's" muscle; mover for plantar flexion of foot |
| soleus | deep to gastrocnemius is this fleshy muscle; arises on tibia & fibula & inserts into calcaneal tendon & is strong plantar flexor of the foot |
| calcaneal tendon (achilles tendon) | posterior leg tendon--fibrous connective tissue that joins muscles in the back of the leg; formed when soleus muscle tendon joins with gastrocnemius tendon |
| rectus femoris | muscle in quadriceps; attached to hip &k extends or raises the knee; flex thigh; only muscle that can flex the hip |
| vastus lateralis | side of thigh; largest of quadriceps group: rectus femoris, vastus intermedius, & vastus medialis; quad is largest in human body; extend knee; extend lower leg & allow body to rise up from a squatting position |
| vastus medialis | part of quad muscle group; front of thigh; most medial of quad muscle; extends entire length of thigh; extend leg at knee & stabilize the patella |
Created by:
kajones97
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