Biology

Adipose Tissue Definition Adipose tissue is a connective tissue consisting chiefly of fat cells surrounded by reticular fibers and arranged in lobular groups or along…

Reticular Connective Tissue Definition Reticular connective tissue is a type of tissue found in the body that is supported with a branching framework of collagen…

Loose Connective Tissue Definition Loose connective tissue is a loose, irregularly arranged connective tissue that consists of collagenous and elastic fibers, a protein polysaccharide ground…

Tendon Definition Tendon is a band of tough, fibrous, inelastic tissue that connects a muscle to a bone. Tendons are made chiefly of collagen. Ligaments…

Effects and Uses of Nitric Oxide Definition of Nitric Oxide Nitric Oxide is a chemical compound that has a chemical formula of NO. It consists…

Nitric Oxide Definition Nitric oxide is a colorless, poisonous gas produced as an intermediate compound during the manufacture of nitric acid from ammonia or from…

Capillary Definition Capillary is any of the tiny blood vessels that connect the smallest arteries (arterioles) to the smallest veins (venules). Capillaries form a network…

About Artery Definition Artery is any of the blood vessels that carry oxygenated blood away from the heart to the body’s cells, tissues, and organs.…

Retina Definition Retina is the light-sensitive membrane that lines the inside of the back of the eyeball and connects to the brain by the optic…

About Cornea Definition Cornea is the clear, dome­shaped surface that covers the front of the eye and it is the eye’s outermost layer. It lies…

Lens (Anatomy) Definition Lens is a transparent structure behind the iris of the eye that focuses light entering the eye on the retina. The lens…

Blood Vessel Definition Blood vessel is an elastic tube or passage in the body through which blood circulates; an artery, a vein, or a capillary.…