BIOL 212 Lecture Notes - Lecture 23: Electromyography, Synovial Fluid, Humerus

• School: University of San Diego
• Department: Biology Courses
• Course: BIOL 212
• Professor: Stitt

Document Summary

Located in the posterior part of the thigh. Assists in the flexion of the leg of the thigh and extension of the thigh. Attaches to the heel bone by way of the achilles tendon. Used to plantarflex foot and flex toes. Positioned on the front of the leg. Used to dorsiflex the foot and turn the foot inward. Characterized by progressive weakness and muscle fiber degeneration. No evidence of nerve involvement or degeneration. Chronic, progressive disease affecting the skeletal muscles. Tear in muscle that form a cuff over the upper end of the arm. Rotator cuff helps lift and rotate arm. Also helps hold the head of humerus in place during abduction of arm. Diagnostic techniques, treatments, and procedures of the muscles. Process of recording the strength of contraction of a muscle when stimulated by electric current. Extraction of a specimen of muscle tissue, through a biopsy needle or incisional biopsy, for purpose of examining it under a microscope.