How do human muscle cells get oxygen?

Answer 1

The process in muscles which uses oxygen is called respiration. Muscles, like all aerobic living cells, require oxygen for aerobic respiration, which is the process by which cells convert food into energy. So when muscles contract, they are using oxygen. When muscles do not get sufficient oxygen for contraction, problems arise. The muscle cells must use anaerobic repiration which is respiration without oxygen. They cannot do this for very long though as the byproduct of anaerobic respiration is lactic acid which causes a fall in pH.

Answer 2

Oxygen flows into the lungs and into alveoli, which are surrounded by capillaries. The oxygen bonds to hemoglobin (the iron containing protein in blood cells) and travels to the heart. The heart then redirects the blood through arteries then into smaller capillaries that surround muscles. The oxygen is transfered from the hemoglobin to muscle cells.

Answer 3

Human muscle cells get oxygen through the bloodstream. Oxygen is carried by red blood cells in the blood vessels to the muscle tissues where it is then diffused into the muscle cells for energy production through aerobic respiration.