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pelvic musc & lo lim
Stack #85004
| question | answer |
|---|---|
| the most powerful and largest muscles in the body are those of the ___. | lower limb |
| fascia lata | deep fascia of the thigh, encircles the thigh muscles |
| relate the fascia lata | like a supportibe stocking and tightly binds them |
| function of fascia lata | partitions the thigh muscles into compart, each with own blood and nerve supply |
| name the compartments of the thigh. | anterior, lateral, posterior, medial |
| anterior compart of thigh contains? | muscles taht extend the knee or flex the thigh |
| the muscle of the lateral compartment ____ the thigh | abducts |
| most muscles of the posterior compar | act as both flexors of the knee and extensors of the thigh |
| muscles of the medial comp. act as | adductors of the thigh |
| most of the muscles that act on the thigh originate | on the os coxae |
| the muscles that originate on the os coxae do what? | stabilize the highly moveable coxal joint and support body during walking, standing |
| coxal joint | acetabulofemoral jnt |
| a majority of the muscles that move the thigh at the coxal jnt originate on the ______ and insert on the ____ | pelvic girdle, femur |
| thigh flexors | muscles of the anterior thigh compartment |
| thigh flexor muscles | sartorius, quadriceps femoris muscles. |
| thigh adductors | medial thigh compartment muscles |
| thigh adductors muscle | gracilis |
| thigh abductors | lateral thigh compartment |
| thigh abductor muscle | tensor fasciae latae |
| posterior thigh compartment muscles | gluteus maximus, piriformis and hamstring muscles |
| longest muscle in the body | sartorius (thigh flexor) |
| what muscle enables cross legged sitting? | sartorius (thigh flexor) |
| where is sartorius located? | crosses over anterior thigh |
| the _____ muscle of the quadriceps femoris muscles group, helps flex the thigh in addition to moving the knee joint/leg. | rectus femoris |
| what attaches to the iliotibial tract (band)? | tensor fasciae latae |
| iliotibial tract (band). | lateral thickening of the fascia lata |
| where is the iliotibial tract (band) located?q | extends from teh iliac crest to the lateral condyle of the tibia |
| largest and heaviest of the three gluteal muscles | gluteus maximus |
| what is the chief extensor of the thigh | gluteus maximus |
| common site for IM | gluteus maximus, and deltoid |
| piriformis is located where? | deep to the gluteus maximus, laterally rotate the thigh/coxal joing |
| example of piriformis action. | when the legs are crossed with one ankle resting on the knee |
| what is a negative action of the pirifomis? | can cause pressure on a major nerve that runs down the back of the thigh |
| the anterior (extensor) compartment of the thigh ic composed of? | quadriceps femoris |
| pime mover of knee extension | quadriceps femoris |
| most powerful muscle of the body | quadriceps femoris |
| quads` | quadriceps femoris |
| the quadriceps femoris muscles have spearate origins, but a ... | common insertion on the patella via quadriceps tendon |
| the quadriceps tendon | is continuous over the patella and becomes the patellar ligament as it attch to the tibial tuberosity |
| how is the quadriceps tendon become the patellar ligament | as it attchs to the tibial tuberosity on the proximal anterior region of the tibia |
| name the thigh muscles located in the extensor (anterior) compartment. | rectus femoris, vastus lateralis, vastus medialis, vastus intermedius, sartorius |
| medial (adductor) compartment of thigh contains? | gracilis |
| posterior (flexor) compartment of the thigh contains | biceps femoris, semimembranosus, semitendinosus (three hamstring muscles) |
| how did the hamstring muscles gain their name? | bc a ham is strung up by the tendons of these muscles while being smoked |
| what is the function of the hamstring muscles? | flex the knee joint/leg and are antagonistic to the quadriceps femoris muscles. |
| the hamstrings hav a ____ origin and ___ insertions | common, different |
| biceps femoris | tow headed muscle inserts on t he lateral side of leg, palpated at the laterael margin of the popliteal fossa |
| semimembranosus | deep to the semitendinosus and inserts on the medial side of the leg. it's tendon of insertion palpated at the medial margin of the popliteal fossa |
| semitendinosus | superficial to the semimembranosus and inserts on the medial side off the leg. creates the most prominent medial lip of the popliteal fossa. |
| gastrocnemius | spans the knee joint and flexes the knee/leg |
| crural muscles | muscles that move the ankle, foot, and toes |
| what are the three crural compartments | anterior, lateral and posterior |
| what partitions the leg into three compartments? | deep fascia, each with its own nerv and blood supply |
| what portion of the tibia lacks muscle attachment? | anterior |
| function of the anterior compart muscles? | dorsiflex the foot and or extend the toes |
| tendons of the muscles within anteriorr crural compartment are held tightly against the ankle by? | extensor retinaculum |
| extensor retinaculum | multiple deep fascia thickenings (ankle). |
| primary dorsiflexor of the foot at the ankle? | tibialis anterior |
| name the muscle of the anterior compart | tibialis anterior |
| muscles of the lateral compartment of the leg. | peroneus (fibularis) longus |
| posterior crural compartment is composed of what two muscles? | gastrocnemius, soleus |
| gastrocnemius | most uperficial crural muscle, two thick bellies that form the calf |
| soleus | broad, flat musscle, deep to the gastocnemius, resembles a flat fish |
| gasstrocnemius and soleus are collectively known as the | triceps surae |
| the most powerful planter flexors of all the leg muscles | triceps surae |
| the triceps surae share a common tendon of insertion called the | calcaneal (achilles) tendon |
| achilles tendon | calcaneal tendon |
| severe cases of compartment syndrome may require | decompression fasciotomy |
| don't use ___ when compartment syndrome is suspected | compression |
| intrinsic muslces of the foot both ___ and ____ within the foot. | originate, insert |
| function of the intreinsic muscle of the foot. | support he arches and move the toes to aid locomotion |
| the plantar surface of the foot is supported by the | plantar aponeurosis |
| where is the plantar aponeurosis formed? | from the deep fascia of the foot |
| where is the plantar aponeurosis found? | extends between teh phalanges of the toes and the calcaneus, encloses the plantar muscles of the foot |
Created by:
kimberlywar