Blemishes are caused due to hormonal changes, hereditary factors, stress, lack of proper nourishment. When the pore is clogged by natural body oils, the pores can get infected by bacteria and develop into black heads or white heads. If you prick or squeeze the acne lesion it will lead to scars or minor blemishes.
Making the world better, one answer at a time. Endothelial and epethelilal cells are the two different cell types which sandwich together the tissue. On the blood side is the endothelial cells (endo, meaning inside), and on the outer side are the epethelial cells.or example the epethelial cell layer are the cells that coat the intetestine wall, and thus absorb nutrients and the the endothelial cells are the cells that face the blood,and release those nutrients into the blood.
What is the difference between the endocrine gland and the exocrine gland? Endocrine gland is a gland whose secretions (called hormones) are collected by the blood and reach the tissues through the circulation. The hypophysis (pituitary) and the adrenals are examples of endocrine glands. Exocrine gland is a gland whose secretions are released externally through ducts (into the skin, intestinal lumen, mouth, etc.). The sebaceous glands and the salivary glands are examples of exocrine glands.