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.
0 Minutes. Clinical death arrives as the brain stops getting oxygen. This death of the brain eventually shuts down other vital bodily functions including circulation throughout the body and to the extremities. Pallor mortis, paleness of the body, sets in almost immediately because of lack of blood circulation.