Answer:
The Heart: pumps the blood
The Arteries: take blood to the body
The Veins: bring blood to the heart
The Capillaries: the connection between arteries and veins
A precancerous lesion occurring anywhere in the mouth, evidenced by elevated gray-white or yellow-white leathery surfaced lesions with clearly defined borders, is known as Oral leukoplakia.
An oral leukoplakia occurs as a lesion of elevated grey-white or yellow-white leathery surface which is an indicator of precancerous changes or a mouth cancer and is mainly diagnosed by oral biopsy.
It is caused due to heavy smoking habits, tobacco chewing or due to heavy alcoholism. Main symptoms or signs include white patched areas which cannot be removed. often removal of these patches or giving up on the causative agents can cure the disease.
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