what is the function of the abductor hallucis muscle?
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Together with flexor hallucis longus and flexor hallucis brevis muscles, abductor hallucis aids the flexion of the big toe. The muscle also helps in maintaining the medial longitudinal arch of the foot while walking.
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The lateral rectus muscle abducts the eye and directs the gaze laterally in the horizontal plane. This action is assisted by the superior and inferior oblique muscles which also abduct the eyes among their other functions.
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Structure and Function The orbicularis oculi muscle closes the eyelids and assists in pumping the tears from the eye into the nasolacrimal duct system.
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The extrinsic muscles include the trapezius, latissimus dorsi, rhomboid major and minor, levator scapulae and the serratus posterior superior and inferior muscles. The principal function of the extrinsic muscles of the back is to move the upper extremity by controlling the movement of the scapula and humerus.
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Abduction is a movement away from the midline - just as abducting someone is to take them away. For example, abduction of the shoulder raises the arms out to the sides of the body. Adduction is a movement towards the midline. Adduction of the hip squeezes the legs together.
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Abductor muscle, any of the muscles that cause movement of a limb away from the midplane of the body or away from a neighbouring part or limb, as in raising the arms to the side (effected by the deltoideus muscle) or spreading the fingers or toes.
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The main function of this chest muscle as a whole is the adduction and internal rotation of the arm on the shoulder joint. Acting independently, the clavicular part helps to flex the extended arm up to 90°, while the sternocostal part facilitates the extension of the flexed arm by pulling it downwards.
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If you relate the adductor muscles as those muscles moving a body part toward the body's midline and abductor muscles as those that move the same body part away from that midline, you simplify the confusion a bit.
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The rectus abdominis is the six pack muscle you actually see. It's a fairly superficial muscle and its main function is to flex the spine.
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The function of the serratus anterior muscle is to allow the forward rotation of the arm and to pull the scapula forward and around the rib cage. The scapula is able to move laterally due to the serratus anterior muscle, which is vital for the elevation of the arm.
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Function. The action of the anterior and middle scalene muscles is to elevate the first rib, they also flexes and laterally bends the neck to same side. The action of the posterior scalene is to elevate the second rib and tilt the neck to the same side.
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The abductor muscle group is located on the lateral side of the thigh and moves the thigh away from the body's midline. These muscles include the piriformis, superior gemellus, inferior gemellus, tensor fasciae latae, sartorius, gluteus medius, and gluteus minimus muscles.
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These muscles include the gluteus medius and gluteus minimus which abduct the thigh, prevent swaying of hips, stabilize pelvic region while keeping hips level, and shift an individual's weight in order to adjust body placement to increase one's overall body stability.
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There are two muscles which serve a protective function in the middle ear; the tensor tympani and stapedius. They contract in response to loud noise, inhibiting the vibrations of the malleus, incus and stapes, and reducing the transmission of sound to the inner ear.
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Insertion: Deltoid tuberosity of humerus. Function: Prime mover of arm abduction.
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Axial muscles support and move the head and spinal column, function in non- verbal communication by affecting facial features, move the lower jaw during chewing, assist in food processing and swallowing, aid breathing, and support and protect the abdominal and pelvic organs.
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Adduction / abduction machines are useful tools to strengthen the muscles that control motion around your hips. Muscles which are weak in some people and can leave runners in particular susceptible to injury. A machine is neither bad nor good, there's just a right and a wrong way to use it.