You are called for a young man who was diving head first off a dock into a lake. bystanders say he struck his head on the bottom because the water was too shallow. they said he was not breathing when they pulled him from the water and they have been performing rescue breathing for him. he is awake, but he is unable to breathe on his own. what type of damage or injury does this indicate?
a. closed head injuryb. open head injuryc. damage to c3, c4, or c5d. damage to his thoracic spine

Answer is C. Damage to C3, C4 or C5.

Explanation:

C1 - C7 are used to represent the number of vertebrae found at the cervical region of the vertebrae canal or column. The vertebrae column comprises off various vertebrae that protect the spinal cord,which starts from the neck region to the tail region.

The C3, C4 and C5 are at the midsection of the cervical region of the spine , and they provide support for the neck and the head.

These vertebrae contain nerves which if affected will cause a serious pain. which can actually affect his breathing. Because, the spinal nerves around the spinal cord are linked to the brain.

answer

crater lake was formed when mount mazama produced a large eruption and collapsed to form a caldera, which then filled with water forming a lake.