Arteries, Capillaries and Veins. Capillaries are where fluids, gasses, nutrients, and wastes are exchanged between the blood and body tissues by diffusion. Capillary walls contain small pores that allow certain substances to pass into and out of the blood vessel.
Blood Vessels: Pathways of blood flow in human body, hollow tubes, of which there are three types-. Arteries: Carry blood away from heart to other body parts, very muscular and elastic. Capillaries: Microscopic blood vessels where exchange of nutrients with tissues take place. BLOOD VESSELS: Human beings have a closed type of circulatory system which means blood does not come into direct contact with body tissues. Instead, the blood flows in restricted pathways called blood vessels. Materials are exchanged between blood and body tissues through the walls of blood vessels. Thus blood vessels are pathways of blood flow in the human body. There are three main types of blood vessels; Arteries, Capillaries and Veins. Arteries pump newly oxygenated blood away from the heart and around the body Approximately, seven percent of the body's blood is in the capillaries which continuously exchange substances with the liquid outside these blood vessels, called interstitial fluid. This dynamic displacement of materials between the interstitial fluid and the blood is named capillary exchange.  Report Abuse. Exchange vessels include capillaries and postcapillary venules. The walls of capillaries are composed of only a tunica intima (a thin layer of endothelial cells). The average diameter of the lumen is just large enough to allow erythrocytes (red blood cells) to pass through in single file. Exchange vessels are the site where gases, nutrients, and wastes are exchanged between blood and surrounding tissues. There are three major type of capillaries: continuous, fenestrated, and discontinuous. Capillaries are where fluids, gasses, nutrients, and wastes are exchanged between the blood and body tissues by diffusion. Capillary walls contain small pores that allow certain substances to pass into and out of the blood vessel. Capillaries measure in size from about 5-10 microns in diameter. Capillary walls are thin and are composed of endothelium (a type of simple squamous epithelial tissue). Oxygen, carbon dioxide, nutrients and wastes are exchanged through the thin walls of the capillaries. Capillaries are so small that red blood cells can only travel through them in single file. Capillaries measure in size from about 5-10 microns in diameter. Capillary walls are thin and are composed of endothelium (a type of simple squamous epithelial tissue). Oxygen, carbon dioxide, nutrients and wastes are exchanged through the thin walls of the capillaries. Making the world better, one answer at a time. Capillary: A tiny blood vessel where substances are exchanged between the blood and the body cells. The capillary is the only blood vessel where things can be  exchanged because it is so thin (one cell thick). Capillaries have  a single cell layer of squamous epithilium. The key exchange between the blood and body cells are the gases involved with cellular respiration. Carbon dioxide produced by respiration is absorbed by the blood, and oxygen … being carried by hemoglobin in the blood is diffused into the cells. Both of these exchanges happen due to concentration gradients. The capillary is the only blood vessel where things can be  exchanged because it is so thin (one cell thick). Capillaries have  a single cell layer of squamous epithilium. They connect the tiny muscular branches of arteries, called ... Click to read more below. The blood capillaries are where the important functions of the circulation take place: the exchange of material between circulation and cells. Capillaries are the smallest of the body's blood vessels.  Capillaries (/ˈkaepɨlɛriz/ ˈkæpɨlɛriz IN; /us/ kəˈpɪləriz IN) uk are the smallest of a'body s blood (vessels and lymph) vessels that make up the. microcirculation Capillary beds can consist of two types of vessels: true capillaries, which branch from arterioles and provide exchange between cells and the blood, and short vessels that directly connect the arterioles and venules at opposite ends of the beds, metarterioles, only found in the mesenteric circulation.
http://cardionervousobesity.weebly.com/about-the-cardiovascular-system.html https://en.wikipedia.org/wiki/Microcirculation https://answers.yahoo.com/question/index?qid=20080427110924AAVg4WF http://biology.about.com/od/anatomy/ss/capillary.htm http://biology.about.com/od/anatomy/ss/capillary.htm http://www.answers.com/Q/What_vessel_exchanges_materials_between_the_blood_and_the_body_cells http://www.answers.com/Q/What_vessel_exchanges_materials_between_the_blood_and_the_body_cells http://www.innerbody.com/image_lymp01/card66.html https://en.wikipedia.org/wiki/Capillaries
in what type of blood vessels are materials exchanged with the body cells