Schools Financial Credit Union routing numbers are also known as as ABA numbers, routing transit numbers (RTN), or check routing numbers.
The most common cause of long-term hiccups is damage to or irritation of the vagus nerves or phrenic nerves, which serve the diaphragm muscle.Factors that may cause damage or irritation to these nerves include: 1  A hair or something else in your ear touching your eardrum. 2  A tumor, cyst or goiter in your neck.
Causes of hiccups. Hiccups occur when your diaphragm (the thin layer of muscle that separates your chest cavity from your abdomen) suddenly and involuntarily contracts (tightens).As your diaphragm contracts, it causes you to breathe air in very quickly.The incoming air is stopped when your glottis (the opening between your vocal cords) closes suddenly, producing the characteristic sound of a hiccup.s your diaphragm contracts, it causes you to breathe air in very quickly. The incoming air is stopped when your glottis (the opening between your vocal cords) closes suddenly, producing the characteristic sound of a hiccup.