Answer:
A nerve block is the injection of local anesthetic close to a targeted nerve or group of nerves to lessen pain.
Explanation:
Nerve blocks are typically used for pain in the back, legs, arms, buttocks, neck, and face
Tar is present in any tobacco product that is burned.
The last puffs on a cigarette can contain as much as twice the amount of tar as the first puffs. Tar in cigarette smoke paralyzes the cilia in the lungs and contributes to lung diseases such as emphysema, chronic bronchitis, and lung cancer.
Til they reach the age of 25
During contraction, the filaments slide past he thick filaments, shortening the sarcomere. The thick and thin filaments do the actual work of a muscle, and the way they do this is pretty cool. Thick filaments are made of a protein called myosin. At the molecular level, a thick filament is a shaft of myosin molecules arranged in a cylinder. Thin filaments are made of another protein called actin. The thin filaments look like two strands of pearls twisted around each other.