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drawing the lip downward. mandible bone. lower lip. epicranius. raising eyebrows, wrinkling forehead, pulling scalp posteriorly. frontal belly, occipital belly, temporal bone. skin of brow, epicranial aponeurosis. lateral pterygoid. protruding the mandible, opening the jaw, moving the mandible outward and right and left.
26 wrz 2024 · The end of the muscle that attaches to the bone being pulled is called the muscle’s insertion and the end of the muscle attached to a fixed, or stabilized, bone is called the origin. The muscle primarily responsible for a movement is called the prime mover, and muscles that assist in this action are called synergists.
Each muscle has an origin and an insertion point. Muscle origins and insertions can be described as the anchor end [origin] and the most mobile end [insertion] when the muscle shortens. A muscle’s origin is usually at the attachment of its tendon to the bone with greater mass and stability.
30 paź 2023 · Many muscles are attached to bones at either end via tendons. The muscle origin often describes the more proximal attachment point of the muscle, while the muscle insertion point refers to the distal attachment. In our cheat sheets, you’ll find the origin (s) and insertion (s) of every muscle.
Specify four factors which determine the type of movement accomplished by a muscle. Define “origin” and “insertion” as these terms pertain to skeletal muscles. Describe how the locations of the origin(s) and insertion(s) of a skeletal muscle affect the movement produced when that muscle contracts.
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.
