Chapter 14 blood vessels and circulation flashcards by. Carries carbon dioxide and metabolic material away from the cells. Blood vessels throughout life fetal circulation all major vessels in place by month three of development differences between fetal and postnatal circulation fetus must supply blood to the placenta this is where the fetus gets oxygen the placenta is part of the systemic circuit very little blood is sent through the pulmonary circuit lungs are not used to get. Arteries carry oxygenrich blood away from the heart. Blood vessels and circulation read pages 350 353 two classes of blood vessels based on location 1. Chapter 14 blood vessels and circulation flashcards by proprofs. The oxygen and nutrients transported in the bloodstream and delivered with each beat of the heart nourish 300 trillion cells. From the earliest stages, the embryo develops in the absence of vascularization, receiving its nutrition by diffusion. Smallest of the blood vessels that connect arterioles with venules. Blood pressure force per unit area exerted on vessel wall.
Clots may form in stagnant blood and may break loose into the circulation. The peripheral circulation consists of systemic and pulmonary blood vessels. Distinguish among the types of blood vessels on the basis of their structure and. Animals with longs necks and those that live in cold environments have distinct blood pressure adaptations. One set of blood vessels circulates blood through the lungs for gas. Review sheet 32 265 digital vein, l radial vein, l brachial. The circulatory system is responsible for circulating moving blood throughout the body. List the following vessels in order of those that have the highest blood pressure to those that have the lowest blood pressure. An introduction to blood vessels and circulation the five general classes of blood vessels in the cardiovascular system are. Describe pulmonary and systemic circulation in the human body. Ppt blood vessels and circulation powerpoint presentation. An introduction to blood vessels and circulation blood vessels are classified by size and histological organization are instrumental in overall cardiovascular regulation 211 classes of blood vessels arteries carry blood away from heart arterioles are smallest branches of arteries capillaries are smallest.
Blood flows from the heart to the body and back to the heart. 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 heart and the blood vessels are the most important. The pumping of the heart drives this blood flow through the arteries, capillaries, and veins. By the end of the module, you should be able to do the following. Print chapter 20 blood vessels and circulation flashcards. Molecular mechanisms of blood vessel growth cardiovascular. Theyll give your presentations a professional, memorable appearance the kind of sophisticated look that todays audiences expect. Structure and function of blood vessels anatomy and.
Your circulatory system is made up of your heart and three main types of blood vessels arteries, veins and capillaries. Blood vessels also circulate blood throughout the circulatory system oxygen bound. Your blood vessels and circulation must function efficiently. Blood vessels of the pulmonary circulation and veins of. Learn vocabulary, terms, and more with flashcards, games, and other study tools. Print chapter 20 blood vessels and circulation flashcards and study them anytime, anywhere. A clot can clog a blood vessel, blocking the blood flow to parts of the body. In an ordered and sequential manner, however, the embryo rapidly transforms into a highly vascular organism, survival being dependent on a functional, complex network of capillary plexuses and blood vessels. Prevention reverse heart issues blood pressure cholesterol congested veins about cardio vascular issues homeopathic support here americans struggle with heart health. Substances are carried by the blood which is pumped around the body by the heart through blood. Winner of the standing ovation award for best powerpoint templates from presentations magazine.
In several diseases, vessels do not grow, but primarily remodel. Circulation and blood vessels pulmonary circulation the movement of blood from the heart to the lungs and back to the heart again. Compare and contrast the structures of arteries and veins and of arterioles and venules. Page 1 chapter 21 blood vessels and circulation introduction a. Draw and label the 3 waves of a typical ekg tracing.
Many professionals agree that the best approach to maintaining heart health is a holistic one. Blood is carried through the body via blood vessels. Blood vessels and circulation questions and study guide. Eventually, the smallest arteries, vessels called arterioles, further branch into tiny capillaries, where nutrients and wastes are exchanged, and then combine with other vessels. One main focus of this chapter considers hemodynamics, the means by which blood flow is altered and distributed and by which blood pressure is regulated. Circulation of blood systemic and pulmonary circulation blood circulationrefers to the flow of blood through all the vessels, which are arranged in a complete circuit or circular pattern systemic circulation carries blood throughout the body path goes from left ventricle through aorta. The heart, blood vessels arteries, veins, and capillaries, and blood. List the parts of the intrinsic conduction system of the heart. In birds and mammals, oxygenated and deoxygenated blood received by the left and right atria respectively passes on to the ventricles of the same sides. The arteries the arteries of the heart include 1 the aorta 2 the pulmonary trunk 3 the pulmonary arteries arteries arteries are the blood vessels that are carrying blood away from the heart.
Alpha, kidney alpha, liver beta, kidney beta, liver. Capillary tunica intima pulmonary vessels tunica media systemic vessels vein 1. Blood vessel disease is caused by a buildup of fatty deposits called plaque that narrows blood vessels. Chapter 21 an introduction to blood vessels and circulation. Blood flow and blood pressure regulation biology for. Print chapter 20 blood vessels and circulation flashcards and study them anytime. The circulatory system is known as a closed system because the blood is contained within either the heart or blood vessels at all times always flowing in one direction. In the following quiz, on the scientific study of anatomy and physiology, well be taking a look at some incredibly important parts of our body, such as the lymphatic and cardiovascular systems, with specific reference to the blood vessels the important pipelines. Worlds best powerpoint templates crystalgraphics offers more powerpoint templates than anyone else in the world, with over 4 million to choose from. Blood vessels blood vessels form a closed system of tubes that carry blood away from the heart, transport it to the tissues of the body, and then return it to the heart table 21. Your body always tries to maintain homeostasis or a steady state in its various functions.
Blood circulation has evolved differently in vertebrates and may show variation in different animals for the required amount of pressure, organ and vessel location, and organ size. Blood vessels of the pulmonary circulation and veins of the heart. Blood vessels and circulation objectives this chapter describes the structure and functions of the blood vessels. Pulmonary veins then return freshly oxygenated blood from the lungs to the heart to be pumped back out into systemic circulation. The fluid portion of the fresh uncoagulated blood is known as plasma which makes up 55 per cent of whole blood. Tunica externa tunica media tunica interna endothelium blood vessels arteries arteries always carry blood away from the heart large arteries are muscular and provide resistance. An artery is a blood vessel that carries blood away from the heart, where it branches into eversmaller vessels. Varies according to local factors and neural ans regulation. Pulmonary vessels transport blood to and from the lungs 2. The blood vessels are the components of the circulatory system that transport blood throughout. Anatomy and physiology of the cardiovascular system. Vessels that carry blood from the heart to the body not the lungs and back to the heart. Heart, blood vessels, and circulation harvard health. Trace the pathway of a carbon dioxide gas molecule in the blood from the inferior vena cava until it leaves the bloodstream.
The histology of blood vessels and anatomy of the primary routes of arterial and venous systems are surveyed. Systemic vessels transport blood to and from the body five functions of the circulatory system 1. These vessels fall into one of two broad categories. Take the pretest to get your own personalized study plan. Capillary circulation capillary circulation is the part of your circulatory system where oxygen, nutrients, and waste pass between your blood and parts of your body. Circulation of blood systemic and pulmonary circulation blood circulation refers to the flow of blood through all the vessels, which are arranged in a complete circuit or circular pattern systemic circulation carries blood throughout the body path goes from left ventricle through aorta. Name all structures vessels, heart chambers, and others passed through en route. Choose from 500 different sets of blood vessels and circulation flashcards on quizlet. A blood vessel with a 1 mm radius offers 16 folds more resistance than a blood vessel with a 2 mm radius. Additional subjects contained in chapter include cardiovascular physiology, regulation, response, and effects of aging. The unity of form and function, saladin, mcgraw hill, 2012.
If the clot blocks an artery in the brain, the result is an ischemic stroke. Which blood vessel carries blood from the heart to all parts of the body. Vessel diameter varies by vasodilation and vasoconstriction. Pulmonary circulation includes both arterial and venous circulation. Blood vessels and circulation learning objectives learning objectives the anatomy of blood vessels a comparison of a typical artery and a typical vein differences between arteries and veins blood flow through the blood vessels blood flow through the blood vessels arteries histological. Distinguish among the types of blood vessels based on their structure and function, and describe how and where fluid and dissolved materials enter and leave the cardiovascular system.
An introduction to blood vessels and circulation blood vessels are classified by size and histological organization are instrumental in overall cardiovascular regulation 211 classes of blood vessels arteries carry blood away from heart arterioles are smallest branches of arteries. Blood vessels and circulation blood vessels arteries arterioles capillaries venules veins vessel anatomy. Hyperthermia is a simple, yet littleknown technique to increase efficiency of blood vessels and circulation and speed healing. Circulation allows transport of nutrients to the tissues, transport of waste away from the tissues, the movement of hormones, and the maintenance of fluid environment for overall survival and function of the cells overall circulation is divided into two portions systemic circulation pulmonary circulation.
The ventricles pump it out without any mixing up, i. Blood flow amount of blood flowing thru a vessel or organ. Capillaries are very small blood vessels which connect the arterial and venous circulatory subsystems. Carry oxygenated blood away from the heart to the body.
Blood vessels and circulation 1 prelab lecture compliments of gary larson 2 blood vessels and circulation. Learn blood vessels and circulation with free interactive flashcards. Human circulation blood vessels given the question, identify the answer. It is the narrowing of the blood vessels in the abdomen, legs and arms. This equation indicates that the smaller the radius, the larger the resistance to blood flow. Match these terms with the artery tunica adventitia correct statement or definition. When the blood vessels narrow, less oxygenrich blood gets to your body parts. The blood vessels overview of arteries and veins module 18. For instance, skin vessels enlarge in psoriasis or vascular malformations, preexisting collaterals in the heart or peripheral limbs expand more than 20fold after arterial occlusion, and pulmonary vessels become invested by smooth muscle cells during pulmonary hypertension see. Your heart is at the center of the system, acting as a pump to distribute nutrient and oxygenrich blood through your body. Your blood vessels and circulation need to be working properly for efficient healing. Stretched end to end, the vessels of the circulatory systemarteries, arterioles, capillaries, venules, and veinswould measure about 60,000 miles.
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