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The muscle responsible for lifting the radius is primarily the biceps brachii. When the biceps contracts, it pulls on the radial tuberosity, allowing the radius to move upward, particularly during flexion of the elbow. Additionally, the brachialis muscle assists in this action by flexing the elbow joint. Together, these muscles enable effective lifting and movement of the radius.
What else can I help you with?
If you were lifting a dumb bell would your muscle be contracting isometrically or isotonically?
Isotonically - The load your are lifting is equal to or less than the force generated by your muscle. Your muscle shortens when it contracts allowing you to lift the dumbbell.
What is Isotonic Exercise in a SIMPLE description?
Isotonic exercise (or muscle contraction) is when the muscle contracts and shortens giving movement (ie a bicep curl, lifting and lowering weight) Nearly all the training you do is Isotonic the opposite is Isometric, where the muscle contracts but des not shorten, giving no movement. Eg, Weightlifting, Lifting the weight up and down is isotonic Holding the weight still above the head is isometric
What does a muscle become when it contracts?
A muscle becomes shorter when it contracts.
What happens to the length of a muscle when it contracts?
When a muscle contracts, it shortens in length.
When a muscle contracts how does its form change?
A muscle that contracts shortens whereas a muscle that relaxes lengthens.
Where is the radius muscle in the body?
The radius is a bone in the forearm, not a muscle.
When a muscle contracts, it pulls with what force?
When a muscle contracts, it pulls with a force generated by the muscle fibers contracting and shortening.
What Contracts to produce movement?
Contracts that produce movement include concentric, eccentric, and isometric contractions. Concentric contractions occur when a muscle shortens while generating force, such as lifting a weight. Eccentric contractions happen when a muscle lengthens while under tension, like lowering a weight. Isometric contractions involve muscle activation without changing the muscle length, as seen in a plank hold.
How does extension in the elbow occur?
The extension in the elbow occurs when the triceps muscle contracts, causing the forearm to straighten out. This movement is essential when performing actions like pushing and lifting objects.
When one muscle contracts what happens to the opposing muscle?
When one muscle in a pair contracts the other expands.
When a muscle contracts it?
shortens
When the muscle contracts it is?
Flexion
