We will look at the basic concept and structure of the cardiovascular system today. You only need to know the basic structure of the general circulation to pass the test. We will begin by looking at the structure of the heart.
Diagram of the cardiovascular system.
The heart consists of four chambers:
1. Left ventricle
2. Left atrium
3. Right ventricle
4. Right atrium
The right side of the heart carries deoxygenated blood while the left side carries oxygenated blood.
Deoxygenated blood return to the right atrium from lower parts of the body via the inferior vena cava and from the upper part via the superior vena cava.
The right ventricle pumps deoxygenated blood to the lung via the pulmonary artery. Note that all arteries carry deoxygenated blood except the pulmonary artery.
Oxygenated blood return to the left atrium from the lung via the pulmonary vein. Note that all vein carry deoxygenated blood except the pulmonary vein.
The left ventricle pumps the oxygenated blood to the other parts of the body via the aorta (the largest artery in the body)
There are valves between the atria and ventricles. The one on the left is called the mitral valve (bicuspid valve) and the right one is called the tricuspid valve. These valves prevent the back flow of blood.
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Welcome to my TEAS Exam Prep blog. I hope it will help you prepare very well for the pre-nursing entrance exam, popularly known as the TEAS exam. This is one of the entrance exams required by some schools for those who want to pursue careers in the nursing field in the USA. I will attempt to break down the review materials into manageable parts so that you can systematically and efficiently prepare for the test with less stress. I will guide you to prepare for the entire content of the test. Hopefully, you will be able to pass after going through these series.
Best of luck!
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