MICROANATOMY

MUSCLE NERVE CARTILAGE BONE

SKELETAL MUSCLE

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
What are myofibrils composed of?
A
muscle fibers
B
muscle fascicles
C
myofilaments
D
myopathic fibers
Explanation: 

Detailed explanation-1: -The myofibrils are made up of thick and thin myofilaments, which give the muscle its striped appearance. The thick filaments are composed strands of the protein myosin, and the thin filaments are strands of the protein actin, along with two other muscle regulatory proteins, tropomyosin and troponin.

Detailed explanation-2: -Myofibrils are composed of long proteins including actin, myosin and titin. Myofilaments. The long proteins that hold the myofibrils together are organised into thick and thin filaments. These are called myofilaments. These repeat along the length of the myofibrils in sections called as sarcomeres.

Detailed explanation-3: -Myofibrils are composed of long proteins including actin, myosin, and titin, and other proteins that hold them together. These proteins are organized into thick, thin, and elastic myofilaments, which repeat along the length of the myofibril in sections or units of contraction called sarcomeres.

Detailed explanation-4: -There are three different types of myofilaments: thick, thin, and elastic filaments.

Detailed explanation-5: -Myofibrils are composed of smaller structures called myofilaments. There are two main types of myofilaments: thick filaments and thin filaments. Thick filaments are composed primarily of myosin proteins, the tails of which bind together leaving the heads exposed to the interlaced thin filaments.

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