How does the human body heal itself after a cut / laceration?


How does the human body heal itself after a cut / laceration?

In: Biology

I’m explaining like you are 5 .

•The blood from the cut will start to clot within a minute or two to stop the bleeding.

•Once the blood clot dries, it will begin to form a scab to protect the tissues underneath the cut from various germs.

•After the scab forms, this is when the real healing takes place.

•You will notice inflammation at the cut site, which means it will turn red or pink, get swollen and you will feel pain when it is touched.

•As a part of this healing process, you may notice clear fluid coming from the wound. This is your lymphatic system removing the waste from healing.

•The body also causes blood vessels in the area to vasodilate or open up to help bring essential repair products to the area, specifically oxygen and nutrients.

•The immune system ramps up and helps fight infection with white blood cells.

•This is the main repair and regrowth of new tissues and blood vessels in the damaged area.

•The new tissue repair is initiated by collagen fibers being laid down by red blood cells. This fibrous matrix is the base for the new tissue.

•Granulation tissue is formed as this matrix is filled in.

•New skin cells start to overlay the granulation tissue.

•Oftentimes you may notice slight irritation and itching as the healing continues.

•The original scab will fall off leaving the area looking pink or red and shiny.

•The strength of the wound is enhanced.

•This is where scar tissue may form. Deeper wounds can cause more scar tissue. However, over a longer period of time those scars may fade or disappear completely.

Haemostasis from the flushing of the wound to the platelets bonding with fibrin to create a barrier and the new skin cells covering up the wound site. –