0

HETAV PATEL

Grade 11,

Courses New

Explain the initiation of muscle contraction. What is the role of sacroplasmic reticulum , myosin head and F- actin during contraciton in striated muscles .

Explain the initiation of muscle contraction. What is the role of sacroplasmic reticulum , myosin head and F- actin during contraciton in striated muscles .

Grade:9

1 Answers

Dr.Adam Shaik
askIITians Faculty 387 Points
7 years ago

The function of Sarcoplasmic reticulum is to releases calcium.
During resting stage of muscle the thin filaments and thick filaments are apart (seperate),
where the myosin binding sites with actin filament are blocked.

During contraction (excitation) process, calcium molecules binds with actin (thin) filament and
initiates the binding of Myosin (thick) filament with Actin (thin) filament
finally leading to muscle contraction.
for further clarification also study sliding filament theory step by step.
Hope the images gives u better understanding.519-1437_anm5s5_1.jpg519-610_myosin.jpg

Think You Can Provide A Better Answer ?

Other Related Questions on Zoology

View all Questions »

ASK QUESTION

Get your questions answered by the expert for free

Answer and earn gift vouchers

Win Gift vouchers upto Rs 500/-

View courses by askIITians

Design classes One-on-One in your own way with Top IITians/Medical Professionals

Click Here Know More

Complete Self Study Package designed by Industry Leading Experts

Click Here Know More

Live 1-1 coding classes to unleash the Creator in your Child

Click Here Know More

a Complete All-in-One Study package Fully Loaded inside a Tablet!

Click Here Know More