Arteries are blood vessels that deliver oxygen-rich blood from the heart to the tissues of the body. Each artery is a muscular tube lined with smooth tissue that has three layers:
- The intima is the inner layer lined by a smooth tissue called endothelium.
- The media is a layer of muscle that lets arteries handle the high pressures from the heart.
- The adventitia is a connective tissue anchoring arteries to nearby tissue.
The largest artery in the human body is the aorta, the main high-pressure pipeline connected to the heart's left ventricle. The aorta branches into a network of smaller arteries that extend throughout the body. The arteries' smaller branches are referred to as arterioles and capillaries. The pulmonary arteries carry oxygen-poor blood from the heart to the lungs under low pressure, making these arteries unique.
The images below were captured using the
Richter Optica RB20D digital microscope with a 5 megapixel microscopy camera.
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| Microscopy image of artery, vein and nerve c.s. captured with RB20D microscope at 40x. |
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| Microscopy image of artery, vein and nerve c.s. captured with RB20D microscope at 100x. |
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| Microscopy image of artery, vein and nerve c.s. captured with RB20D microscope at 400x. |
