MUSCLE PHYSIOLOGY

PHYSIOLOGY

MUSCLE STRUCTURE FUNCTION

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which of the following is the correct order?
A
Fascicle, muscle fiber, myofibril, sarcomere, myofilament
B
Sarcomere, muscle fiber, fascicle, myofibril, myofilament
C
Muscle fiber, fascicle, sarcomere, myofibril, myofilament
D
Fascicle, muscle fiber, myofilament, myofibril, sarcomere
Explanation: 

Detailed explanation-1: -The correct sequence, from smaller unit to larger unit in a muscle is A Muscle, Fascicles, Muscle cell, Myofibrils, Myofilaments B Myofibrils, Myofilaments, Muscle fibre, Fascicles, Muscles C Myofilaments, Myofibrils, Muscle fibre, Muscle fascicle, Muscle D Myofibrils, Muscle fibre, Myofilament, fascicles, Muscles.

Detailed explanation-2: -In conclusion, the correct order of muscle structures is muscle, fascicles, fibers, myofibrils, and sarcomeres, from largest to smallest.

Detailed explanation-3: -Depolarisation and calcium ion release. Actin and myosin cross-bridge formation. Sliding mechanism of actin and myosin filaments. Sarcomere shortening (muscle contraction)

There is 1 question to complete.