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muscle funct&nerves
back & lowe extremeties
| Question | Answer |
|---|---|
| trapezius | -elevation, rotation, & retraction of scapula, -helps in adduction-spinal root of accessory nerve |
| levator scapulae | -elevates scapula-dorsal scapular nerve |
| rhomboid maj & minor | -retraction of scapula medially-dorsal scapular nerve |
| lattisimus dorsi | -adduction, extension of arm, raises body toward arm when climbing-thoracodorsal nerve |
| serratus posterior superior | -rib elevation- |
| serratus posterior inferior | -accessory in respiration-intercostal nerves |
| intrinsic muscles of back | -erect posture, 2 splenii rotate head-all by spinal dorsi rami |
| suboccipital triangle | -turning head backwards & laterally-suboccipital nerve |
| Tensor fascia latae | -abduction, flexion of thigh, protects knee joints-superior gluteal nerve |
| gluteas maximus | powerful extensor of hip joint, active in rising, sitting or climbing-inferior gluteal nerve |
| gluteus medius & minimus | -abduction, keeps pelvis level when opposite leg is raised- superior gluteal nerve |
| piriformis | -abductor of the thigh, keeps femur head in acetabulum-sacral plexus |
| obturator internus | -abductor of thigh, controls balance-nerve to obturator internus |
| Superior gemellus | -same as obturator internus-nerve to obturator |
| inferior gemellus | -same as obturator internuss |
| Quadratus femoris | - same as obturator internus.- |
| hamstring | -flexers of knee joint extensor of hip joint-tibial nerve |
| biceps femoris long head | -extension at hip-tibial nerve |
| biceps femoris short head | -may be absent-common peroneal nerve |
| semtendineous | -extension at hip, medial rotationat knee-tibial nerve |
| semimembranous | -hip extensor, knee flexor-tibial nerve |
| adductor magnus | -powerful adductor, hip extensor- |
| soleus muscle | -sustain motion-tibial nerve |
| gastrocnemius | -fast movements-tibial nerve |
| plantaris muscles | -active in walking-tibial nerve |
| tibialis posterior | -plantar flexion & supination of the foot-tibial nerve |
| flexor hallucis longus. | -plantar flexion & supination of the foot.-tibial nerve. |
| flexor digitorum longus | -plantar flexion. & supination of the foot-Tibal Nerve |
| popliteus muscle | flexion & unlocking of knee, protection of lateral miniscus-tibial nerve |
Created by:
xogcu8chickox
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