The salivary glands, particularly the gland of the lower jaw (submandibular gland) form the saliva. The saliva plays important roles: Salvia protects and cleans the oral cavity. For example, it contains important enzymes that protect the mouth from pathogenic germs and salvia transforms sugars (polysaccharides) from foods into simpler ones. So that, it can continue to be digested in the stomach. In addition, the substances contained in saliva play an important role in the transmission of the taste sensation.
Human papillomavirus infection (HPV) is currently the most prevalent sexually transmitted disease (STD) in the world. This infection is caused by more than 150 types of virus and its main symptoms are the appearance of warts on the hands, feet and genitals, where they are also known as condyloma acuminata.
HPV was first described in 1935 by Dr Francis Peyton Rous, who had demonstrated the existence of a virus with oncogenic (capable of inducing the formation of tumors) that caused cancer in the skin of rabbits and whose description coincided with the papillomavirus.
Rosacea is a redness that appears on the cheeks and small blood vessels around the entire face. For most people, it does not represent a real problem.
In some rare cases some pustules and inflammation in the skin may appear. Although it is common for rosacea to develop on the cheeks, it can also occur on the forehead, chin, ears, areas close to the eyes, neck and even the chest.
Balanitis is inflammation of the glans which constitutes the final part of the penis. The glans is the final portion of the spongy body which is the smallest of the three columns of erectile tissue found in the penis (the other two are the corpora cavernosa, which are two parallel structures located in the upper part of the penis). When inflammation also affects the foreskin, it is known as balanoposthitis.