KPE160 Module 4 Exam Questions with Complete Solutions 100% Solved| Grade A+
when one muscle is thicker than the other, but the same length even when they are the
same length they will max out at the same max contractile velocity
thicker muscles are stronger, not longer or faster
how to know how thick muscles are from a curve one muscle produces 200 N of force
divided by 90
approx 2 cm ^2
effect of resting fiber length on force-length longer muscles are faster, but not stronger
will produce the same force at isometricity
- generate forces at different lengths
when can a muscle get most force a muscle at resting length and lengthening quickly
levers bones
a rigid long member that rotates around a fulcrum (joint)
different classes based on relative locations of effort, load, and fulcrum
moment arm question moment arm of dumbbell is 30 cm
, moment arm of muscle is 3 cm
have to multiply force by 10 to make it up
fulcrums joints
cables muscle-tendons
pulleys grooves in bones
sheaths of fascia
serve to keep muscle tendons in place
bend the line-of-force if muscle tendon going around a corner
- tension is constant along a bent cable going around a pulley
- the radius of the pulley determines moment arm pf tensile force in cable about center of the
pulley
-moment arm is the radius of the pulley
extensor pulleys extensor muscles go around the convex side of a flexed joint (long way)
when one muscle is thicker than the other, but the same length even when they are the
same length they will max out at the same max contractile velocity
thicker muscles are stronger, not longer or faster
how to know how thick muscles are from a curve one muscle produces 200 N of force
divided by 90
approx 2 cm ^2
effect of resting fiber length on force-length longer muscles are faster, but not stronger
will produce the same force at isometricity
- generate forces at different lengths
when can a muscle get most force a muscle at resting length and lengthening quickly
levers bones
a rigid long member that rotates around a fulcrum (joint)
different classes based on relative locations of effort, load, and fulcrum
moment arm question moment arm of dumbbell is 30 cm
, moment arm of muscle is 3 cm
have to multiply force by 10 to make it up
fulcrums joints
cables muscle-tendons
pulleys grooves in bones
sheaths of fascia
serve to keep muscle tendons in place
bend the line-of-force if muscle tendon going around a corner
- tension is constant along a bent cable going around a pulley
- the radius of the pulley determines moment arm pf tensile force in cable about center of the
pulley
-moment arm is the radius of the pulley
extensor pulleys extensor muscles go around the convex side of a flexed joint (long way)
