Search results
Overview. Arteries distribute oxygen-rich blood to your body. Arteries, part of your circulatory (cardiovascular) system, are the blood vessels that bring oxygen-rich blood from your heart to all of your body’s cells. They play a crucial role in distributing oxygen, nutrients and hormones throughout your body.
artery, in human physiology, any of the vessels that, with one exception, carry oxygenated blood and nourishment from the heart to the tissues of the body. The exception, the pulmonary artery, carries oxygen-depleted blood to the lungs for oxygenation and removal of excess carbon dioxide (see pulmonary circulation).
Feb 26, 2019 · The middle, and often the thickest layer, that’s made up of smooth muscle cells and elastic fibers that can help control the diameter of the blood vessel. Tunica externa. The outermost layer ...
An artery (from Greek ἀρτηρία (artēríā)) [1] is a blood vessel in humans and most other animals that takes oxygenated blood away from the heart in the systemic circulation to one or more parts of the body.
Aug 3, 2023 · Artery arises from the left ventricle of the heart as a single main and largest artery called the aorta. The aorta is divided into four sections – ascending aorta, aortic arch, thoracic aorta, and abdominal aorta. From each section, different arteries, called the major arteries arise.
Describe the basic structure of a capillary bed, from the supplying metarteriole to the venule into which it drains. Compare and contrast veins, venules, and venous sinuses on the basis of structure, location, and function. Discuss several factors affecting blood flow in the venous system.
Blood is pumped from the heart in the arteries. It is returned to the heart in the veins. The capillaries connect the two types of blood vessel and molecules are exchanged between the blood and...
May 9, 2019 · The aorta is the main systemic artery and the largest artery of the body. It originates from the heart and branches out into smaller arteries which supply blood to the head region ( brachiocephalic artery ), the heart itself ( coronary arteries ), and the lower regions of the body.
Mar 6, 2023 · Arteries make up tubelike structures responsible for transporting fluid (i.e., blood for the circulatory system and lymph for the lymphatic system) to and from every organ in the body. Mainly, arteries manage the transportation of oxygen, nutrients, and hormones through our bodies.
May 9, 2022 · Coronary artery structure. There are two coronary arteries, each containing several branches: Right coronary artery (RCA): The RCA supplies blood to your right atrium and right ventricle (where deoxygenated blood goes before heading to the lungs). Its branches supply the sinoatrial (SA) and atrioventricular (AV) nodes.
