the air is depleting from your lungs
A hissing sound coming from a chest wound can indicate that air is being sucked into the chest cavity through the wound. This is known as pneumothorax.
A hole in the chest ... the hissing comes from the leaking air.
An Open Chest Wound (Sucking Chest Wound)
A ferret that make a hissing sound means they are annoyed or irritated
Coughing up blood, Sucking or hissing sound coming from the wound, frothy blood coming from the wound.
To make a humming or hissing sound, like an arrow or ball flying through the air; to fly or move swiftly with a sharp hissing or whistling sound., A hissing and humming sound.
Geese make a hissing sound.
it makes hissing vocalizations
Likely to be a punctured lung.
Snakes are reputed to make a hissing sound.
The hissing sound of the blue flame on a Bunsen burner is due to the rapid movement of gas molecules as they mix with air and combust. This turbulence creates vibrations and generates sound waves, resulting in the hissing noise.
Could be a "hissing" sound