KINE 403 Final (100% Correct answers)

Components of Rotary Stability correct answers 1. Mass 2. Base of support 3. Location of center of gravity relative to BOS Stable System correct answers COG is in middle of BOS Unstable System correct answers COG is within BOS Unbalanced System correct answers COG is outside of BOS; will fall over What would cause Mccw or Mcw correct answers length of moment arms force (vector) line of action relative to axis of rotation Sit to Stand correct answers with cardboard right in front, impossible to stand up without moving COG over new BOS of just the feet Bending over/Adducting leg correct answers Standing next to wall: become unbalanced because COG is no longer within BOS No wall: able to shift COG to stay within BOS (either shifting it backwards or sideways to stay over stationary foot) Five mechanoreceptors correct answers 1. Cutaneous receptors 2. Joint receptors 3. Muscle spindles 4. Golgi tendon organs 5. Vestibular system 2 articulations for Vertebral Column correct answers 1. Intervertebral discs 2. Facet Joints Functions of Intervertebral Discs correct answers 1. helps return motion segment back to its original position 2. shock absorption Functions of Facet Joints correct answers 1. contrains motion 2. helps protect the disc Stability of Vertebral Column correct answers Facet joints have limited bone on bone contact Depend on muscular and ligamentous arrangement Differences is segmental motion in different regions of VC correct answers Lumbar = most flexion and least rotation (position of facet joints) Cervical = most extension, lateral flexion, and rotation