The diagnostic term for beri/beri refers to <u>body weakness "weakness/weakness"</u> and is caused by the lack of thiamine (part of B complex: B-1) in the diet. Beri/beri typically attacks/damages the nerves and can further lead to loss of strength of muscles or worse case - paralysis.
The circulatory system - hemoglobin in the blood transports oxygen :)
Answer:
the right ventricle pumps the oxygen-poor blood to the lungs through the pulmonary valve.