Blood contained in vessels to heart and body tissues; no mixing of oxygenated and deoxygenated blood.
Blood passes through heart twice in one complete cycle.
-Nutrients from gut to all cells
-Excretory Products such as urea from liver to kidneys
-Hormones from endocrine glands to all cells
-Heat and water to all tissues
-Oxygen from lungs to cells
-Carbon dioxide from cells to lungs
Phagocytosed bacteria and debris
Platelets are used for...
Function of Arteries
Carry blood away from the heart
Function of Veins
Carry blood back to heart.
Function of Capillaries
Link arteries with veins and supply and pick up materials from tissues.
Capillaries consist of...
Endothelium only for easy gas exchange of materials
Single, thin layer of cells modified for easy exchange of gases.
Arteries consist of...
Outer layers of collagen fibers, middle layers of elastic fibers, involuntary muscle fibers, and inner endothelial layers.
Veins consist of...
All three layers but are thinner than arteries because pressure is lower there.
References arteries, veins, and capillaries that serve the lungs
References the arteries, veins, and capillaries that serve the rest of the body.
Right side of the heart pumps...
Deoxygenated blood to the lungs.
Left side of the heart pumps...
Oxygenated blood to the rest of the body.
Jugular Vein and Carotid Artery