In your body, you have only two types of bone tissue: cortical and cancellous bone. In this lesson, we will learn about the structure and function of cancellous bone, which plays a crucial role in producing blood cells and stem cells and is the primary tissue affected by osteoporosis.
balaclava (plural balaclavas) 1  A warm cap shielding the neck and head, often made out of wool. ( 2 chiefly Canada) A ski mask with holes for the eyes and, sometimes, the nose and mouth, which may be rolled up and worn like a toque or pulled over the face for greater protection.
Balanitis is an inflammation of the foreskin and head of the penis that typically occurs in boys and men who are uncircumcised (foreskin remains around the penis).This inflammation can be caused by infections, poor hygiene, or irritants from soaps or detergents.alanitis usually occurs in boys and men who are not circumcised and still have their foreskin, the retractable covering of the penis. It is most commonly caused by poor hygiene practices. Fortunately, it can usually be prevented by thoroughly and regularly cleaning the shaft and foreskin of the penis.