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Voluntary muscle movements are the result of conscious effort by the brain. Involuntary muscles such as the heart or smooth muscles in the gut and vascular system contract as a result of non-conscious brain activity or stimuli proceeding in the body to the muscle itself.
Your answer: The heart and smooth muscles in the gut and vascular system (lungs) are muscles that work "without thinking about it" -- we call these "involuntary" muscles.
What else can I help you with?
Does muscle contraction always promote movement?
No, muscle contraction doesn't always promote movement. For example, in an isometric contraction, the muscle does not change length, so movement is not produced. Additionally, some muscles can contract to stabilize joints without producing visible movement.
What are the differences between isometric, isotonic, and isokinetic exercises in terms of muscle contraction and movement?
Isometric exercises involve muscle contraction without movement, isotonic exercises involve muscle contraction with movement, and isokinetic exercises involve muscle contraction at a constant speed.
Why are cardiac muscle called involuntary?
Involuntary muscles are those which function without the need for conscious thought or effort. The heart beats without having to be thought about for it to beat. As a contrasting example, the act of typing this answer is a form of voluntary muscle movement, actively thinking about moving fingers to specific keys on a keyboard.
What is the advantage of having voluntary muscles?
One advantage to having voluntary muscle control is that it is voluntary - we are able to control movement which has many benefits.
During isometric contraction the energy used appears as movement?
During isometric contraction, no movement occurs, as the muscle is generating force without changing in length. The energy used is still expended by the muscle, but it is not converted into movement. Instead, the energy is dissipated as heat within the muscle tissue.
What happens to your body after a few days without food?
it starts consuming your fat and then your muscle
Which life process are muscle cells specialist for?
Muscles are specialized tissues evolved for movement. Smooth muscle is involved in involuntary movement found in the contraction of blood vessels, the digestive tract and the iris, and also the formation of goose bumps. Skeletal muscle is a type of striated muscle involved in voluntary movement and is the muscle we are most familiar with that allows us to move our bodies. Cardiac muscle is also a type of striated muscle, although some people use it to mean skeletal muscle only, and is involved in the contraction of the heart which is the pumping motion that moves the blood throughout the body.
What are two types of muscle movement?
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What is the precision of muscle produced by movement?
The precision of movement produced by a muscle is due
What is a target movement?
A movement that targets one muscle or one section of a muscle.
What is the soft soft tissue needed for movement called?
It could be muscle, tendon, or ligament. It's probably muscle tissue, since you can't move without it.
What happens to the origin and insertion of a muscle during contraction?
During muscle contraction, the origin (the attachment point of the muscle that remains relatively fixed) and the insertion (the attachment point of the muscle that moves) move closer together. This results in the muscle shortening and causing movement at the joint.
