Question

question
indicate why when one scrapes their skin, it does not bleed but its painful
select all that apply
presence of free nerve endings
epidermis is avascular.
dermis is avascular
oil glands prevent the skin from bleeding

Explanation:

The epidermis is avascular (lacks blood - vessels), so a scrape that only affects the epidermis won't cause bleeding. Free nerve endings are present in the skin, including the epidermis, which can detect pain stimuli. The dermis is vascular, and oil glands have no role in preventing bleeding.

Answer:

A. Presence of free nerve endings
B. Epidermis is avascular