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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.
What happens to the Z line during muscle contraction?
During muscle contraction, the Z line moves closer together, causing the muscle to shorten and generate force.
What is the relatively fixed point of a muscle's attatchment to a bone called?
The relatively fixed point of a muscle's attachment to a bone is called the origin. It is typically located closer to the body's midline and usually remains stationary during muscle contraction.
Near or closer to the point of attachment?
You mean the proximal point of attachment.
During muscle contraction the moves toward the?
During muscle contraction, the Z-lines move closer together as the sarcomeres shorten. This is due to the sliding of actin and myosin filaments past each other, resulting in the contraction of the muscle.
What is the healing process during which the edges of a wound are pulled closer together?
Cicatricial contraction is the healing process during which the edges of a wound shrink and pulled closer together. The scar left by this process is called a cicatrix.
Examples of different types of muscular contraction relating to four types of physical activity?
=1. Throwing a ball in a football match - this would be a concentric contraction because when bringing the ball behind the head your biceps do the concentric contraction. This is because the two ends of the bicep come closer to each other when doing the action. == ==2. pomallhorses in gymnastic - this is a isometric contraction because the biceps and triceps when doing this the ends of the muscle do not come closer of get further away form each other they stay the same. == ==3. Kicking a ball in rugby - this is an concentric contraction because the ends of the hamstring get further away when doing this action therefore it is a concentric contractions.== ==4. Sit ups - when doing sit ups your abdominals get closer when you sit up form the floor there for this is a concentric contraction.=
What happens to a Z line during contraction?
the Z line discs come closer together and the & the width of the I band decreases.. or narrows
What happens to density during thermal contraction?
It increases. The volume of a material decreases in contraction, while the mass remains the same.
What happens to z line disc during contraction?
During muscle contraction, the Z-line distance decreases as the sarcomeres shorten. The myosin and actin filaments slide past each other which causes the Z-lines to come closer together. This results in the muscle fiber becoming shorter and generating force.
When molecules move closer together in a bridge during winter how does a bridge not break from the molecules coming closer together?
They design bridges with mechanical sliding gaps to avoid any damage due to thermal expansion/contraction.
What moves toward center of sarcomere?
During muscle contraction, the thin filaments (actin) are pulled towards the center of the sarcomere, which causes the Z-lines to move closer together. This process is facilitated by the interaction between actin and myosin filaments during the sliding filament mechanism of muscle contraction.
