answersLogoWhite

0

The sarcomere, which is the basic contractile unit of a muscle, shortens in length when myofilaments contract. The myosin heads pull on the actin filaments, causing them to slide past each other and overlapping more, resulting in muscle contraction.

User Avatar

AnswerBot

1y ago

What else can I help you with?

Related Questions

When muscles contract do the myofilaments themselves actually shrink?

the myofilaments themselves do not contract, they slide, this is called the Sliding Filament theory, in which the thick filament (Myosin) slides over the thin filament (Actin).


Bundles of myofilaments make up?

Bundles of myofilaments make up


What is a myofibril?

A myofibril is a bundle of contractile filaments (myofilaments), 1-2 μm in diameter, that are arranged in parallel groups in the cytoplasm of striated muscle cells.


What is considered to be a regulatory protein of the myofilaments?

Tropomyosin and troponin are called regulatory proteins because they act like a switch to determine when the fiber can contract and when it cannot.


How does the eye lens focus?

Muscles in the eye surrounding the lens contract stretching it out, flattening it; or relax, letting it thicken. These changes in shape refocus the lens.


What expand or contract to take the shape of a container?

Liquids and gasses will expand or contract to take the shape of a container.


What are the myofilaments called in a muscle cell?

The myofilaments in a muscle cell are called actin and myosin. Actin and myosin are protein filaments that work together during muscle contraction to generate force and movement.


What are Thick myofilaments are made of?

Myosin


What do thick myofilaments extend the length of?

The A band


What does contract amendment mean?

Making changes to a contract. It has nothing to do with the US Constitution.


What specific clause, when signed by all parties to a sales contract, changes the original terms of the contract?

The specific clause that, when signed by all parties to a sales contract, changes the original terms of the contract is known as an amendment clause.


Does a gas changes to a shape and volume?

SHAPE