Cardiovascular System Anatomy And Physiology Pdf
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The circulatory system , also called the cardiovascular system or the vascular system , is an organ system that permits blood to circulate and transport nutrients such as amino acids and electrolytes , oxygen , carbon dioxide , hormones , and blood cells to and from the cells in the body to provide nourishment and help in fighting diseases , stabilize temperature and pH , and maintain homeostasis. The circulatory system includes the lymphatic system , which circulates lymph. Lymph is essentially recycled excess blood plasma after it has been filtered from the interstitial fluid between cells and returned to the lymphatic system.
- Circulatory system
- Handbook of Cardiac Anatomy, Physiology, and Devices
- BIOL 215/216 - Anatomy & Physiology I & II: Cardiovascular System
- What Is the Heart? Anatomy, Function, Pathophysiology, and Misconceptions
The heart itself is made up of 4 chambers, 2 atria and 2 ventricles. De-oxygenated blood returns to the right side of the heart via the venous circulation.
Like the bustling factory, the body must have a transportation system to carry its various cargos back and forth, and this is where the cardiovascular system steps in. The cardiovascular system can be compared to a muscular pump equipped with one-way valves and a system of large and small plumbing tubes within which the blood travels. The heart muscle has three layers and they are as follows:. The heart is equipped with four valves, which allow blood to flow in only one direction through the heart chambers. Although the heart chambers are bathed with blood almost continuously, the blood contained in the heart does not nourish the myocardium.
This site not only includes helpful skeletal images, but also practice questions for each of the covered regions. Once inside the system, you can zoom and rotate your virtual skeleton. Eleven systems in total are able to view and examine. This site not only includes images of and information on the above listed systems, but it also includes interactive drills and practice questions for students. T hese lectures vary in length, and will open in a new window when you click on the provided link. The heart consists of cardiac muscle that forms a web-like net that contracts upon itself. It consists of two individual pumps that are connected in series with respect to one another.
Handbook of Cardiac Anatomy, Physiology, and Devices
The current approach to understanding cardiac dynamics relies upon movements that adhere to the conventional topographical separation of cardiac muscle into the left ventricle, right ventricle, and septum. Functional analyses have addressed them independently, and this approach has resulted in many suppositions that this report will define and question. Alternatively, cardiac muscle mass is formed by the helix and surrounding circumferential wrap described by Lower in the s [ 1 ], Senac in the s [ 2 ], Krehl in the s [ 3 ], Mall in the s [ 4 ], and more recently by Torrent Guasp [ 5 ]. For example, the left ventricular free wall and septum are usually discussed separately, yet both are formed by the same muscle Figure 1 and their function cannot be separated unless isolated focal lesions exist. For this reason, the anterior descending and posterior descending coronary arteries are simply vascular highways perched upon the top or bottom of the helical muscle forming the septum and its adjacent LV free wall.
BIOL 215/216 - Anatomy & Physiology I & II: Cardiovascular System
Biomechanics aims to explain the mechanics of life and living. From molecules to organisms, everything must obey the laws of mechanics — Y. The primary function of the cardiovascular system is mass transport, that is, the transport of oxygen, carbon dioxide, nutrients, waste products, hormones, etc.
If your institution subscribes to this resource, and you don't have a MyAccess Profile, please contact your library's reference desk for information on how to gain access to this resource from off-campus. Please consult the latest official manual style if you have any questions regarding the format accuracy. The cardiovascular system consists of the heart, blood vessels, and the blood, which transports materials to and from all parts of the body. The heart pressurizes blood and provides the driving force for its circulation through the blood vessels.
Бринкерхофф растерянно постоял минутку, затем подбежал к окну и встал рядом с Мидж. Та показала ему последние строчки текста.
What Is the Heart? Anatomy, Function, Pathophysiology, and Misconceptions
Я вас знаю. На такой риск вы не пойдете. Сьюзан было запротестовала, но Стратмор не дал ей говорить. - Вы меня не знаете, молодой человек. Я рисковал всю свою жизнь.
Мы погибли. - Теряем фильтры Протокола! - раздался чей-то голос. - Открылся третий уровень защиты! - Люди в комнате засуетились.