Answer:
This mechanism, known as the skeletal muscle pump (Figure 6), helps the lower-pressure veins counteract the force of gravity, increasing pressure to move blood back to the heart.
Explanation:
Answer:
ribsosomes: synthesize proteins
The superficial palmar arch<span> is formed predominantly by the </span>ulnar artery<span>, with a contribution from the </span>superficial palmar branch of the radial artery<span>. However, in some individuals the contribution from the radial artery might be absent, and instead anastomoses with either the </span>princeps pollicis artery<span>, the </span>radialis indicis artery<span>, or the </span>median artery<span>, the former two of which are branches from the radial artery.</span>
The component of exercise that primarily strengthens the heart is aerobics. This heart strengthening exercises may include biking, running, walking, swimming, aerobic dances and a lot more that are sure to add strength to your your heart, lungs and stamina.