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The contraction of a muscle exerts a pull on a bone because?
The contraction of a muscle exerts a pull on a bone because muscles are attached to bones by tendons.
What is angle of pull?
angle of pull is the angle between muscle insertion and the bone on which the muscle inserts
Which bone does the biceps muscle pull?
radius
What happens when a muscle pulls a force on a bone?
skeletal muscles that are attached to ligaments that are attached to bone
Which bone does the triceps muscle pull?
I think its the humerus.
What kind of muscle pull on bones to produce movement?
all muscles pull on bones to create movement, since muscles are contractile and bone is rigid. the muscle attaches to the bone via the tendon.
What are the loose cords that attach muscles to bones?
Tough cord of dense connective tissue that attaches muscle to bone. If the muscle is thin and wide, the tendon may be a thin sheet. Tendons transfer muscle power over a distance, e.g., forearm muscles contract and pull on tendons that pull on finger bones to produce finger movements.
What if a bone had only one muscle attached to it?
muscles can only pull so a bone with only one muscle on it would be pulled to the extreme of the muscles contraction and stay there.
Is a force a push or a pull or both?
A muscle operates by getting shorter. It's tied to a bone, and can only pull the bone,not push it. In order for the muscle to return to its original length, a different muscle,on the other side, has to pull the bone in the opposite direction. So, inside the 'machinery',muscles can only pull, not push. Outside the machine, of course, the hand or the legmoves, and those can be rigged to objects in the outside world in ways that permitpulling or pushing.
The factor that determine where bone matrix is to be remodeled is?
stresses of gravity and muscle pull on the skeleton
Is muscular force a pull or a push force or both?
A muscle operates by getting shorter. It's tied to a bone, and can only pull the bone,not push it. In order for the muscle to return to its original length, a different muscle,on the other side, has to pull the bone in the opposite direction. So, inside the 'machinery',muscles can only pull, not push. Outside the machine, of course, the hand or the legmoves, and those can be rigged to objects in the outside world in ways that permitpulling or pushing.
Why can muscle tissue expand and contract but the liver cannot?
Muscle tissue consists of interlocking filaments called actin and myosin which essentially pull the cell in on itself. The liver has no such filaments. It doesn't need them.
