The cardiac conduction system of the heart consists of specialized muscle cells that generate and send rhythmic electrical impulses to the myocardium in order for the heart to contract (Cardiac Conduction System‚ 2016). When there is the normal rhythm of the heart it is called sinus rhythm and any deviation from sinus rhythm is called an arrhythmia (Saladin‚ 2012). Electrocardiograms (ECG) record the electrical impulses and help determine when there are any abnormalities in the way the heart functions
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and left side. If there was a hole in the septum there would be a mix of oxygen right blood and oxygen poor blood and some oxygen right blood can enter the lungs instead of the body. 2. Capillaries exchange materials with the cells of the body there veins return blood to the heart and arteries take blood away from the heart 3. The SA node‚ or sinoatrial node initiates the heartbeat and automatically sends out a signal every 0.85 seconds‚ which causes the atria to contract. The AV node‚ or the atrioventraicular
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Homework Module 5 Grand Canyon University December 9‚ 2012 Dr. Kendall Morris 1. All patients are entitled to receive safe and appropriate nursing care. They are entitled to receive care from a competent and knowledgeable nurse. Patients are entitled to receive competent and safe care including receiving the correct medications. The five rights are right patient‚ right drug‚ right dose‚ right route and right time. The purpose of the five is to make sure the patients
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Chapter 19- The Cardiovascular System: The Blood 1) Which of the following is NOT function of blood? A) transports nutrients‚ wastes and gases B) regulates pH C) defends against infection D) promote blood loss E) distribute heat 2) Which of the following is correct? A) A 100 lb (45 Kg) woman will have about 8 lb (3.6 Kg) of blood. B) Most adult humans have between 4 and 6 L of blood‚ depending on their size. C) Normal blood is less viscous than water and has a neutral pH. D) A and
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ANATOMY Vascular Supply of Upper Limb (I) Arterial Supply (Figure-1-7): (A) Subclavian Artery o On Right arises from brachiocephalic trunk. o On Left from arch of aorta. o Extends from arch of aorta to lateral border of first rib. Branches: o Internal thoracic artery o Vertebral artery o Thyrocervical trunk : (a) Suprascapular artery forms anastomosis around scapula (b) Transverse cervical (c) Inferior thyroid (B) . axillary artery : at mid calvical and
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place for days and if they become occluded by clotted blood or some other mechanical obstruction they cannot be cleared by flushing agents. While a person is hospitalized‚ the nurse needs to check the IV site to make sure the catheter remains in the vein and is delivering a continuous solution. The nurse also needs to flush the catheter routinely to prevent it from clotting. Heparin sodium is used as an anticoagulant in intravenous catheters in order to prevent clotting and minimize the incidence
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A varicose vein is a superficial vein with a faulty valve. The calf muscles squeezes the deep veins in the leg and pressure is reduced in the superficial veins. These superficial veins are fitted with special one-way valves to prevent the blood running backwards. The weight of blood in the vein is conciderable especially while standing still and the blood flow is against gravity. and blood is allowed to pool stretching the walls of the veins which damage the valves resulting in the lumen being unable
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Comparison of different types of blood pumps Nowadays‚ there are two main types of blood pumps: kinetic pumps and positive displacement pumps. Kinetic pumps: Centrifugal pump is one of the most familiar kinetic pumps. A centrifugal pump converts the input power to kinetic energy in the liquid by accelerating the liquid by a revolving device - an impeller. The most common type is the volute pump. Fluid enters the pump through the eye of the impeller which rotates at high speed. The fluid is accelerated
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Capella University BIO1000 – Human Biology U01A1-Homeostasis-An Analogy January 12‚ 2012 Part 1 - Regulates your body temperature when you are outside on a cold winter day. When it is cold outside and the temperature drops‚ your body thermo receptors detect the drop and send signals to the hypothalamus. Neurons also send signals to smooth the walls of the blood vessels to make them contract‚ which creates a narrowing in the blood vessel also known as “vasoconstriction”. What vasoconstriction
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322 Apply stone therapy massage 322 Apply stone therapy massage By Lucy Barnett By Lucy Barnett Task 1a * The importance of carrying out a detailed body analysis & relevant tests is so that you can pick up on any posture faults‚ avoid any areas which may be contra indicated and you are able to give them information on ways to improve their posture. It is important to carry out relevant tests such as cold or hot and sharp and blunt so that you are sure the client can feel the difference
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