Like computers have hardware-tangible and visible parts, and software which is code to operate and perform functions, in the same way human body has hardware like bones and soft tissue which includes ligaments, muscles, fascia, blood vessels (circulatory system), and nervous system.
The bones being the base of the skeletal system, are responsible for support and making movement possible mechanically, and the soft tissue is responsible not only for movement initiation and control, albeit also for stabilizing and limiting movement to maintain the integrity of the body.
The bones move conveniently at the joints, which are essentially two approximating complimentary bone surfaces as in
i) the synovial joints- permitting mobility either in multiple directions (flexion, extension, abduction, adduction and rotational movement, as in case of ball- and- socket joints) as in shoulder and hip joints, or mobility in a single plane (flexion/extension movement) as in elbow and knee joints,
ii) the amphiarthroidal joints -permitting little movement with cartilage lining between approximating surfaces as between vertebrae in the spine, or
iii) the synarthroid joints – permitting no movement at all as in the joints of the skull .
The software is the messages sent and received by the brain, the processing done within the central nervous system, and transmitted via nerves (spinal cord and peripheral nerves) to the stabilizing structures (torso including spine, pelvis, shoulder girdle) and soft tissue moving the bones and body parts.
Ami Gandhi is a licensed physical therapist in the state of California. She is the owner of StableMovement Physical Therapy, a small boutique practice in San Jose that offers patient centered, one-on-one, hands-on physical therapy.