Describe the Structure and Function of Arteries and Veins

Transposition of the great arteries TGA is a pediatric cardiac congenital defect arising from an embryological discordance between the aorta and pulmonary trunk. These channels then become the.

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Explain the structure and function of venous valves in the large veins of the extremities.

. The organs of the circulatory system are the heart arteries veins and capillaries. In arteries the tunica media which contains smooth muscle cells and elastic tissue is thicker than that of veins so it can modulate vessel caliber and thus control and maintain blood pressure. Describe the basic structure of a capillary bed from the supplying metarteriole to the venule into which it drains.

Venules join to form veins which unlike the arteries do not travel with the airways but make their own way along the septa that separate the segments of the lung. As with veins arteries are comprised of three layers. Structure of the Heart.

It is a component of the cerebral circulation and is comprised of five arteries. Layers of the Heart Wall. HttpswwwfreesciencelessonscoukworkbooksIn this video we look at the structures of arteries veins and capillaries.

Distinguish between elastic arteries muscular arteries and arterioles on the basis of structure location and function. Describe the structure and function of capillaries. The measurement of oxygen and carbon dioxide also known as blood gas analysis may be performed in blood samples from both arteries and veins.

During cardiac development the conotruncal septum spirals toward the aortic sac thus dividing the truncus arteriosus into the pulmonary and aortic channels. The human heart is a four-chambered muscular organ shaped and sized roughly like a mans closed fist with two-thirds of the mass to the left of midline. Veins trace the path of the arteries and have similar names except there are.

The liver is a reddish-brown wedge-shaped organ with two lobes of unequal size and shape. At first glance medical terms may appear intimidating but once you understand the basic word structure and the definitions of some common word elements the meaning of thousands of medical terms can be easily parsed. Vessels arteries arterioles capillaries veins venuoles Function of the cardiovascular system.

Its network of blood vessels is an important component of its structure and function. Medical terminology is language used to describe anatomical structures procedures conditions processes and treatments. It is both the heaviest internal organ and the largest gland in the human body.

The tunicae intima media and externa. Epithelial tissue covers the outside of the body and lines organs vessels blood and lymph and cavitiesEpithelial cells form the thin layer of cells known as the endothelium which is contiguous with the inner tissue lining of organs such as the brain lungs skin and heartThe free surface of epithelial tissue is usually exposed to fluid or. P1 describe the structure and function of the skeletal system P2 describe the different classifications of joints P3.

Describe the structure of the kidneys and the functions of the parts of the kidney. Atria upper chambers Ventricles lower chambers Layers of heart. Thoracic radiographs chest X-rays are very useful to evaluate the lungs thoracic trachea lower airways heart diaphragm and pleural cavity.

The Circle of Willis is a ring-like arterial structure located at the base of the brain that supplies blood to the brain and surrounding structures. Myocardium- This layer forms the heart muscles. Describe the basic structure of a capillary bed from the supplying metarteriole to the venule into which it drains.

The airways and pulmonary blood vessels down as far as the terminal bronchioles receive their nutrition from the bronchial circulation which as part of the systemic circulation is. The heart is enclosed in a pericardial sac that is lined with the parietal layers of a serous membraneThe visceral layer of the serous membrane forms the epicardium. A pulmonary artery is an artery in the pulmonary circulation that carries deoxygenated blood from the right side of the heart to the lungsThe largest pulmonary artery is the main pulmonary artery or pulmonary trunk from the heart and the smallest ones are the arterioles which lead to the capillaries that surround the pulmonary alveoli.

The wall of the heart is made up of three layers. Heart veins and arteries and delivering them to the other parts of the body as shown in Figure 1. Epithelial Tissue Function.

The heart acts as a powerful pump that generates the force necessary to move the blood around the circulatory. Distinguish between elastic arteries muscular arteries and arterioles on the basis of structure location and function. A human liver normally weighs approximately 15 kg 33 lb and has a width of about 15 cm 6 in.

Even if biology has never been your favorite subject you still probably know a few basic things about the human body including the fact that the heart pumps blood. Located in the right upper quadrant of the abdominal cavity it rests just below the diaphragm to the right of the. Delivery of oxygen and nutrients.

Explain the structure and function of venous valves in the large veins of the extremities. Epicardium- This is a protective layer made of connective tissues. Describe the cause and effect of obstructed blood flow through plaque buildup in the arteries.

It comprises four chambers. The arteries veins and nerves that supply the kidney enter and exit at the renal hilum. Find my revision workbooks here.

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