The smallest blood vessels. They permeate the tissues, serving as microscopic extensions of arterioles and venules; through their semipermeable walls, fluids, nutrients, and waste gases are exchanged between the blood and the tissues.
One of the minute blood vessels that connect arterioles and venules. These blood vessels form an intricate network throughout the body for the interchange of various substances, such as oxygen and carbon dioxide, between blood and tissue cells.
Extremely narrow tubes forming a network between the arterioles and the veins. The walls are composed of a single layer of cells through which oxygen and nutrition pass out to the tissues, and carbon dioxide and waste products are admitted from the tissues into the blood stream.
The smallest (microscopic) blood vessels in the body. Capillaries form a network throughout the body through which substances can be exchanged between cells and the circulating blood. The exchanged substances include fluid, nourishment, waste material, electrolytes, oxygen and carbon dioxide.
Smallest of all blood vessels, connects the smallest of all arteries and veins; semi-permeable, enabling blood nutrients to flow through to tissue, and waste products to flow back to the blood for disposal.
Tiny blood vessels that allow the nutrients to enter the cells and metabolic wastes to be carried away from the cells. Capillaries have a diameter that is approximately the same as a single cell in the body.
The smallest blood vessel in the body. Capillaries connect arterioles (small arteries) with venules (small veins). Capillaries form an intricate network throughout the body for the interchange of various substances, such as oxygen and carbon dioxide, between blood and tissue cells.
tiny blood vessels that form the most distal part of the circulatory system. Arteries branch into ever smaller vessels, finally ending in the capillaries, which connect with the smallest branches of the veins. Capillaries deliver oxygen and nutrients to and remove waste products from the body's cells.
any of the minute blood vessels, averaging 0.008 millimeter in diameter, carrying blood and forming the capillary system. Capillaries connect the ends of the smallest arteries with the beginnings of the smallest veins.
Tiny blood vessels (their cell walls are about one cell thick) that allow the exchange of nutrients and wastes between the blood stream and the body's cells. Capillaries are thin and fragile. They are so thin they pass through in single file. The exchange of oxygen and carbon dioxide takes place through capillaries wall.
Small, narrow blood vessels that form bridges between arteries, which carry oxygen-rich blood away from the heart, and veins, which bring oxygen-depleted blood back to the heart. Capillaries carry blood to and from cells in the body, allowing for exchange of oxygen, nutrients, carbon dioxide, and cell waste.
Tiny blood vessels approximately 0.008mm in diameter that allows the blood to exchange substances with the body tissue cells. The walls of the capillaries consist of a single layer of endothelial cells.
Capillaries are the smallest of blood vessels. They serve to distribute oxygenated blood from arteries to the tissues of the body and to feed deoxygenated blood from the tissues back into the veins. The capillaries are thus a central component in the circulatory system, essentially between the arteries and the veins. When pink areas of skin are compressed, this causes blanching because blood is pressed out of the capillaries. The blood is the fluid in the body that contains, among other elements, the red blood cells (erythrocytes) that carry the oxygen and give the blood its red color.
The smallest type of blood vessels. Blood flows very slowly in the capillaries enabling exchange of oxygen and nutrients from the blood into the tissues, and waste products and carbon dioxide from the tissues back into the blood.
The tiny blood vessels that connect veins to arteries. Arteries pass oxygen-rich blood to the capillaries, where the gases are exchanged within tissue, and the capillaries then pass their waste-rich blood to the veins for transport back to the heart.
The smallest blood vessels in the body. They branch from arterioles and join to venules. The walls are only one cell thick. Capillaries allow exchange of oxygen, nutrients, and other substance through their walls to the tissue beds, and removal of carbon dioxide and waste products from the tissue beds into the blood stream.
Tiny blood vessels whose walls are so thin that oxygen, nutrients, and waste products flow through them. The network of capillaries in the human body is so extensive that if laid end to end, they would extend about 60,000 miles.