0
Is the effort exerted by the muscle always greater than the load held in the hand?
Wiki User
∙ 14y ago
The effort and the load on the muscle are rarely equal. If the effort is less than the load, the hand will not be able to move the object. If the effort is more than the load, the hand will be able to move the object at a constant acceleration. If the effort and load are equal, then either the object will move at a constant velocity or it will not be moving at all.
Wiki User
∙ 14y ago
Add your answer:
Earn +20 pts
What action is exerted by the muscle on the bone?
skeletal
What is the condition caused by unequal tension exerted by the extrinsic eye muscle?
strabismus
What is key variable in isometric contraction?
Muscle length is what doesn't change, so the variable would be the amount of force exerted on the muscle.
What is a muscle twitch?
A muscle twitch is an involuntary contraction of a muscle group without conscious effort.
What type of muscle contraction occurs when force is exerted against an immovable object?
isometric
How much torque is exerted by human muscles?
It sort of depends on the muscle and the length of the "lever".
What happen to muscle proteins if One consequence of starvation is a reduction of muscle mass?
Muscle proteins are used to stimulate the growth of an exerted muscle. Even when the muscle isn't exerted it needs protein to repair and recover from the exertion previous but without exertion the muscle can no longer grow and will deplete This also applies when exerting a muscle with no protein intake (or very little). The muscle can no longer grow because the muscle has used all the stored muscle proteins for previous growth, as above once the original proteins are gone they must be replaced for extra or maintained mass.
Which burns more fat a lean muscle or bulk muscle?
Answer There's no such thing. Muscle is muscle. There are no "lean" muscles or "bulky"muscles. Some people have a greater muscle mass, some have less muscle mass- but that mass is muscle. A pound of muscle is going to require energy to stay around. If you have a greater muscle mass, you'll have a greater metabolism. He's right you know. This is really splitting hairs!
What are the 3 kinds of levers?
First-class levers have the fulcrum placed between the load and the effort, as in the seesaw, crowbar, and balance scale. If the two arms of the lever are of equal length, as with the balance scale, the effort must be equal to the load. If the effort arm is longer than the load arm, as in the crowbar, the effort travels farther than the load and is less than the load.Second-class levers have the load between the effort and the fulcrum. A wheelbarrow is a second-class lever. The wheel's axle is the fulcrum, the handles take the effort, and the load is placed between them. The effort always travels a greater distance and is less than the load.Third-class levers have the effort placed between the load and the fulcrum. The effort always travels a shorter distance and must be greater than the load. A hammer acts as a third-class lever when it is used to drive in a nail: the fulcrum is the wrist, the effort is applied through the hand, and the load is the resistance of the wood. Another example of a third-class lever is the human forearm: the fulcrum is the elbow, the effort is applied by the biceps muscle, and the load is in the hand.Refer to link below for more information.
How is smooth muscle significantly different from striated muscle?
Smooth muscle shortens and stretches to a greater extent than does striated muscle.
What is the function of the patella tibia?
The patella: 1- Increases the lever arm of the quadriceps muscle in its function to extend the knee joint. 2- Redirect the forces exerted by the quadriceps muscle.
Is the concentration of calcium ion greater in the sarcoplasmic reticulum or sarcoplasm of a resting muscle?
The Ca2+ ion concentration of the sarcoplasmic reticulum will be greater in a resting muscle
