An impression of having seen or experienced something before: Old-timers watched the stock-market crash with a distinct sense of dÃ©jÃ  vu. b. Dull familiarity; monotony: the dÃ©jÃ  vu of the tabloid headlines.
Lateral Neck Flexion Stretch. Lateral neck flexion stretch targets the upper trapezius muscle. This stretch can be very useful for people who suffer from tight, aching muscles in the upper back and neck, such as those who work at a computer.his stretch can be very useful for people who suffer from tight, aching muscles in the upper back and neck, such as those who work at a computer.
The muscle lies deep to the sternocleidomastoid in its superior portion, and deep to trapezius in its inferior portion. The muscle acts as a shaker of the head, it causes neck extension and lateral flexion. Other muscles that extend and rotate the head include the semispinalis capitis and semispinalis cervicis (also laterally flexes the head). The superior portion of trapezius also acts as a lateral flexor of the neck.