ANATOMY

Detailed explanation-1: -A skeletal muscle attaches to bone (or sometimes other muscles or tissues) at two or more places. If the place is a bone that remains immobile for an action, the attachment is called an origin. If the place is on the bone that moves during the action, the attachment is called an insertion.

Detailed explanation-2: -The point where the muscle-tendon attach to the immovable bone is called the origin and this is the proximal end of the muscle. On the other hand, the point where the muscle-tendon attached to the movable bone is called the insertion and this is the distal end of the muscle.

Detailed explanation-3: -The origin muscle definition is the site where bone and muscle are attached, but do not move during contraction. The origin is typically the tissues’ proximal attachment, the one closest to the torso. Muscles always pull.

Detailed explanation-4: -The origin is a point of attachment of the muscle to the immovable or less movable bone-a point where the muscle is anchored to the bone. The insertion is a point of attachment of the muscle to the movable bone. When the muscle contracts, the insertion is usually pulled towards the origin, creating the movement.

Detailed explanation-5: -The origin is the fixed point that doesn’t move during contraction, while the insertion does move.