The arms, being held up and outward, held the rib cage in a fixed end inspiratory position which made it extremely difficult to exhale, and impossible to take a full breath. As time passed, the muscles, from the loss of blood, last of oxygen and the fixed position of the body, would undergo severe cramps and spasmodic contractions. . The Father must turn away from His Beloved Son on the cross. For the first time, Jesus does not address God as His Father. . Decreased oxygen and increased carbon dioxide causes acidic conditions in the tissues.
Fluid builds up in the lungs.
Makes situation in step 2 worse Heart is stressed and eventually fails. With the weight of the body being supported by the sedulum, the arms were pulled upward. This caused the intercostal and pectoral muscles to be stretched. Furthermore, movement of these muscles was opposed by the weight of the body. With the muscles of respiration thus stretched, the respiratory bellows became relatively fixed.