Help k 3 quiz: Joints and Muscular System Consider the length-tension relationsh
ID: 3480225 • Letter: H
Question
Help k 3 quiz: Joints and Muscular System Consider the length-tension relationship. Then click and drag each statement into the correct box to identify whether that statement is true or faise regarding the length-tension relationship of muscles The highost possible tension A higher For maximum number of coacon,ross-bridgesit all possbcortraction, knee fuly tension, begin with higher crss-tidges arebegin with the aero degree of they begin at haif their optimal length. 90 degrees begin with the means elbow bent at and thin flaments possible tension TRUE FALSE ResetExplanation / Answer
1) Muscle contraction can produce tension in the muscle fibres. It does not mean that it will shorten the muscle. This statement is fasle as muscle tension can be produced without changes in muscle length.
2) It is true as when the elbow is bent 90 degrees it increases tension as its biceps function is te flexion of the elbow.
3) Yes it is true the number of cross bridges increase the contraction rate which in turn increases tension in the muscle.
4) Yes it is true because it contracts the muscles naturally whereas stimulation is process by which the muscles are contracted using low level electrical current.
5) It is false because hamstring muscles extend over both the hip and knee. When hamstrings contract these muscles shortens which causes the leg to move back and the knee to bend.
6) False, muscle contraction occurs when these thick and thin filaments slide over one another in a series of repetitive events.
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