prime mover. Medical Dictionary for the Health Professions and Nursing © Farlex 2012.
Muscles that have the sole or principal responsibility for a given action or movement (e.g., biceps brachii for elbow flexion; secondary flexors are the brachioradialis and brachialis muscles). An antagonist muscle is in opposition to a prime mover in that it provides some resistance and/or reverses a given movement. The prime mover, sometimes called the agonist, is the muscle that provides the primary force driving the action.
Now look at your palms again. The biceps brachii, brachialis, and brachioradialis flex the elbow.Flexion and extension are usually movements forward and backward from the body, such as nodding the head.Abduction and adduction are usually side-to-side movements, such as moving the arm laterally when doing jumping jacks.By moving your jaw back and forth in a jutting motion, you are protracting and retracting your mandible.What does all that textbook jargon mean? You evert your foot to put the sole of your shoe back on the floor.The gluteus medius, gluteus minimus, tensor fasciae latae, and sartorius are muscles that abduct the hip. If an athlete wants to strengthen the muscles that move the knee, he or she needs to target only two muscle groups. 1 a : an initial source of motive power (such as a windmill, waterwheel, turbine, or internal combustion engine) designed to receive and modify force and motion as supplied by some natural source and apply them to drive machinery. It assits.Keep reading to learn what all the other muscle jargon means!You invert your foot when you turn it inward to see what is stuck under your shoe. b : a powerful tractor or …
This muscle plays a big role (that’s what prime mover means) in extending the elbow joint from a bent to a straight position. The triceps brachii has four places where it attaches to the scapula, humerus, and ulna.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition.
The smaller anconeus is a synergist in elbow flexion. For some joints, there are only a pair of prime mover muscles, but others can have multiple prime movers, depending on the motion. These muscle actions are often paired, like flexion and extension or abduction and adduction. For some joints, there are only a pair of prime mover muscles, but others can have multiple prime movers, depending on the motion. In fitness, this is an important concept because, when performing an exercise, it is important to know the prime mover muscle of that exercise, because it will be the one getting the most intense workout. The triceps brachii and anconeus are muscles that extend the elbow. A prime mover is the muscle or muscle group that is most responsible for a particular motion of a joint. Below the common terms are listed and defined, with animations to help you picture the muscles and joints in motion.Describing the rotation of the forearm back and forth requires special terms.
A prime mover in the context of skeletal muscle movements is the main muscle responsible for the movement taking place.