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.
Answer:
i would say B. He should monitor Stephen for signs of severe FBAO and begin administrating first aid.
Explanation:
if someone is sick, u need to see what signs they have and call the hospital. mean while, give first aid to that person and wait till the doctors appear.
<em>knee is a joint...
knee caps are made up of cartilage ,, so it is connective tissue...
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