Table of Contents
What carry blood to the tissues?
The arteries (red) carry oxygen and nutrients away from your heart, to your body’s tissues. The veins (blue) take oxygen-poor blood back to the heart. Arteries begin with the aorta, the large artery leaving the heart. They carry oxygen-rich blood away from the heart to all of the body’s tissues.
What is blood flow through the tissues called?
The vascular system, also called the circulatory system, is made up of the vessels that carry blood and lymph through the body. The arteries and veins carry blood throughout the body, delivering oxygen and nutrients to the body tissues and taking away tissue waste matter.
What is the process of transporting blood?
The circulatory system consisting of the heart, arteries, capillaries, and veins, is the pumping mechanism that transports blood throughout the body. In the heart, the left ventricle contracts, pushing red blood cells into the aorta, the body’s largest artery. Now de-oxygenated, blood begins its return to the heart.
What happens to tissues without oxygenated blood?
Tissue starts to die if oxygenated blood is not delivered. If the tissue dies, then the organs will fail. If the organs fail then the body will not be able to operate and die. This is especially in the brain, brain tissues rely on oxygen, and without, significant brain damage can occur.
Are blood vessels tissues?
Vessel networks deliver blood to all tissues in a directed and regulated manner. Arteries and veins are composed of three tissue layers. The thick outermost layer of a vessel (tunica adventitia or tunica externa ) is made of connective tissue.
Which tissue is present in blood vessels?
connective tissue
The largest blood vessels are arteries and veins, which have a thick, tough wall of connective tissue and and many layers of smooth muscle cells (Figure 22-22). The wall is lined by an exceedingly thin single sheet of endothelial cells, the endothelium, separated from the surrounding outer layers by a basal lamina.
How is blood returned to the heart through systemic veins?
The blood returned to the heart through systemic veins has less oxygen, since much of the oxygen carried by the arteries has been delivered to the cells. In contrast, in the pulmonary circuit, arteries carry blood low in oxygen exclusively to the lungs for gas exchange.
Where does systemic circulation carry oxygenated blood to?
It carries oxygen and nutrients to the cells and picks up carbon dioxide and waste products. Systemic circulation carries oxygenated blood from the left ventricle, through the arteries, to the capillaries in the tissues of the body.
How are capillaries used to transport blood to the heart?
Capillaries come together to form venules, small blood vessels that carry blood to a vein, a larger blood vessel that returns blood to the heart. Arteries and veins transport blood in two distinct circuits: the systemic circuit and the pulmonary circuit ( Figure 20.1.1 ).
Where are the components of blood found in the body?
Blood is the life-maintaining fluid that circulates through: Blood carries the following to the body tissues: Blood carries the following away from the body tissues: The components of human blood are: Blood cells are made in the bone marrow. The bone marrow is the spongy material in the center of the bones that makes all types of blood cells.