The epithelial tissue that line the inside of the mouth,heart and blood vessels.

Epithelial cells lining on stomach secretes:

_______ are the most abundant and widely distributed tissues of body.

__________ helps to connect bones to each other.

The skeletol or skeleton system is made up of :

__________ prevents friction between the bones.

___________ tissues are made up of muscle fibers and arranged in bundles.

____________ Muscles are under indivisual's will.

_________ and _________ are absent in Lymphs.

____________ transports oxygen from lungs to body.

_____________ helps to fight against unwanted pathogens and germs that enter the body.