Tissue paper maney of layers and thick
The three organs or tissues that make up the cardiovascular system are the heart, blood vessels, and blood.
membrane
Blood does not make up connective tissue. Blood will coagulate and form clots though, but that is an entirely different story.
Red blood cells make up the greatest portion of the blood. They are responsible for carrying oxygen from the lungs to the body's tissues and removing carbon dioxide.
Spongy, which makes red blood cells, and compact.
Specialized cells make up specialized tissues. The tissues make up an organ, but organs use different tissues.
The two basic tissues that make up skin are the epidermis and the dermis. The epidermis is the outermost layer of skin, providing a protective barrier, while the dermis lies beneath the epidermis and contains blood vessels, nerves, and glands.
Blood, including plasma (the liquid part), red blood cells, white blood cells and plates are a tissue. They do not make tissues. Red bone marrow does makes this tissue.
Vascular tissues usually make up an artery that carries blood to and from the heart, or they can make up the heart itself. Remember! Cell-tissue-organ-organism!
cells make tissues
cells make up tissues tissues make up organs organs make up body systems
the tissues that make up the spinal cord is the nervous tissue