1. Which ONE of the following statements regarding Force-Length Relationship is
ID: 191679 • Letter: 1
Question
1. Which ONE of the following statements regarding Force-Length Relationship is INCORRECT?
Point C can generate less force than Point B since the sarcomere is lengthened and there are less cross bridges formed.
Point A can generate less force than Point B since the sarcomere is short and there are less cross bridges formed.
Force production in a muscle is directly proportional to the number of cross bridges (connection of actin and myosin) formed.
Point A can generate more force than Point C since the sarcomere is short.
Sarcomeres are “happiest” (optimal overlap of actin and myosin) at a length of 2.0 – 2.2m.
a.Point C can generate less force than Point B since the sarcomere is lengthened and there are less cross bridges formed.
b.Point A can generate less force than Point B since the sarcomere is short and there are less cross bridges formed.
c.Force production in a muscle is directly proportional to the number of cross bridges (connection of actin and myosin) formed.
d.Point A can generate more force than Point C since the sarcomere is short.
e.Sarcomeres are “happiest” (optimal overlap of actin and myosin) at a length of 2.0 – 2.2m.
Optimal Overlap 100 F 80 60 No Cross Bridges Attached %) 40-Too Much Overlap 20 0 3.6 m 1.2m 2.1um SARCOMERE LENGTHExplanation / Answer
Option d is incorrect because force generated by a sacromere is directly proportional to it's length. Shorter sacromere generate lesser force than longer ones.
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