Medical

Question 1

pressure waves do … damage underwater because they are transmitted over a …. distance in water than in air with … intensity. Diver needs to be …. the water.

Answer 1

more
greater
higher
out

Question 2

Why do underwater pressure waves cause internal damage?

Answer 2

underwater pressure waves pass through the body except as gas filled sights (lungs, sinuses, ear, abdomen). These air filled spaces get damaged.

Question 3

wet vs dry drowning

Answer 3

Laryngeal spasm: Cough to get inhaled fluid from trachea to oesophagus

wet: laryngeal spasm doesn’t work. fluid in lungs. cells hypoxic
dry: laryngeal spasm does work no fluid in trachea. cells hypoxic

Question 4

secondary drowning

Answer 4

1st water intake damages alveoli membrane. 2nd time Water from blood –> alveoli

Question 5

water cools the body x… quicker than air

Answer 5

x25

Question 6

hypothermia is when the core body temp drops by …

Answer 6

2 degrees