Examlex
The compound that baseball player Mark McGwire took in 1998 was __________.
Muscular Contractions
The process by which muscle fibers produce tension or force by converting chemical energy into mechanical energy.
Internal Chest Wall
The inside layer of the chest wall, consisting of ribs, muscles, and connective tissue, which supports and protects thoracic organs.
Pulmonary Artery
Blood vessel that transports oxygen-poor blood from the heart to the lungs.
Alveolus
The tiny, air sac structures within the lungs where gas exchange with the blood takes place, vital for breathing and oxygenation of blood.
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