PNB 2264 Lecture Notes - Lecture 13: Anatomical Terms Of Muscle, Biceps, Tibialis Posterior Muscle
16 Aug 2018
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Document Summary
How muscle interacts with soft tissues and bones. This interaction is as important as how muscle generates tension. Biomechanics the study of mechanical laws relating to movement of humans. How things in life are made and shaped to be easier on our bodies ( minimize stress/wear and tear) Evolutionary history: walking erect not on all fours. Clinically important example, bariatric surgery people > 400 lbs. Only way a small nurse can move such a large person is to have a good knowledge of biomechanics. Shape (deltoid - triangle, quadratus rectangle, teres round) Orientation (rectus straight, oblique angle) Origin number and function (masseter chew) Axis of force generation: not always obvious. Parallel fibers: parallel to axis of force generation (rectus, never extended full muscle length, develop tension rapidly, cannot develop as much force. Convergent: fibers spread over a braod area, common attachment site, usually organized as a broad fan, tendon on apex, pec muscle.
