lumbar vertebrae the five vertebrae between the thoracic vertebrae and the sacrum. vertebra magÂ´na the sacrum. odontoid vertebra the second cervical vertebra, or axis. vertebra plaÂ´na a condition of spondylitis in which the body of the vertebra is reduced to a sclerotic disk.
Generally, in the early stages of drowning, very little water enters the lungs: a small amount of water entering the trachea causes a muscular spasm that seals the airway and prevents the passage of both air and water until unconsciousness occurs.
The kids can look fineâ they just had a little sputtering and coughing episode after a scary moment while swimming. Occasionally dry drowning can happen in the bathtub. But sometime within the next 24 hours their lungs start a massive inflammatory reaction to the water they inhaled into their lungs.