Tendon Elasticity: Series Elastic Component Role
The question asks to identify the component within tendons that functions like a spring, storing elastic energy when a muscle is stretched.
Understanding Muscle Components
Skeletal muscles have components that respond differently to stretch and contraction:
- Series Elastic Component (SEC): This includes the tendons and potentially cross-bridges. Tendons are highly elastic and connect muscles to bones.
- Contractile Component (CC): This is the active muscle fiber (actin and myosin) that generates force.
- Parallel Elastic Component (PEC): This includes the connective tissues surrounding muscle fibers (endomysium, perimysium, epimysium).
Identifying the Spring-like Action
The Series Elastic Component, particularly the tendons, is described as acting like a spring. Here's why:
- When a muscle is stretched, the load is transmitted through the tendon.
- The tendon stretches slightly, storing potential elastic energy, much like compressing or stretching a spring.
- This stored energy can be released rapidly to assist in subsequent movements (e.g., during the stretch-shortening cycle).
The Contractile Component generates force, and the Parallel Elastic Component provides passive resistance around fibers, but the tendon's role as a passive energy-storing spring during stretch aligns perfectly with the Series Elastic Component.
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Important Questions from Mixed Topic (CUET PG)
- Who was the founder of Bolshevik Communist party?
- What is the key guide to statecraft in the realist tradition?
- Chronologically arrange the events in the Cold War period.
A. Berlin Wall is constructed
B. Communist China joins the UN
C. Soviet invasion of Czechoslovakia
D. Berlin Blockade
Choose the correct answer from the options given below: Morgenthau's principles of political realism are:
A. Politics is rooted in permanent and unchanging human nature which is basically self centred, self-regarding and self-interested
B. Politics is an autonomous sphere of action and cannot therefore be reduced to morals
C. International Politics is an arena of conflicting self-interests
D. The ethics of international relations is situational ethics which is very different from private morality
Choose the correct answer from the options given below:Who among the following political thinkers consider the anarchical self help system to be a compelling factor for States to maximise their relative power positions?
