brain. Blood is carried through tube like structures called blood vessels such as the artery and the vein. The arteries carry blood from the heart at high pressure which contains a high concentration of oxygen and nutrients to supply the organs. Veins carry blood at low pressure to the heart which contains a high concentration of carbon dioxide and with a low concentration of oxygen and nutrients. The main artery in the human body is called the aorta which pumps blood at a very high but constant pressure
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digestive system handles the solid waste but it is up to the excretory system to rid the body of liquid waste. In the large intestines it was mentioned that water is removed at this point and put back into the circulatory system. This is when the renal arteries bring this waste to the kidneys for cleaning. The cleaned blood travels on and the waste is then sent to the urinary bladder via the ureters. When the urinary bladder expands‚ it sends a signal to the brain and then urine is passed through the
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Chapter 23 - The Heart 331 The Heart - Key 1 2 3 What is the name of the central region of the thorax? The central region of the thorax is the mediastinum. About how much of the heart is to the left of the mid-sternal line? Two-thirds of the heart is to the left. Where is the location of the apex of the heart? The apex of the heart is located to the left at the fifth intercostal space. Figure 23.2 11 In reference to Figure 23.2‚ identify #1 - #3. 3 Epicardium 1 Pericardium 2 Pericardial
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cardiovascular system as comprising two distinct networks of arteries and veins. Galen claimed that the liver produced blood that was then distributed to the body in a centrifugal manner‚ whereas air was absorbed from the lung into the pulmonary veins and carried by arteries to the various tissues of the body. Arteries also contained blood. This was an open-ended system in which blood and air simply dissipated at the ends of veins and arteries according to the needs of the local tissue. Blood was not
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08/12/13 1. MEDICAL TERMINOLOGY Aneurysm (AN-ū-rizm) A thin‚ weakened section of the wall of an artery or a vein that bulges outward‚ forming a balloonlike sac. Common causes are atherosclerosis‚ syphilis‚ congenital blood vessel defects‚ and trauma. If untreated‚ the aneurysm enlarges and the blood vessel wall becomes so thin that it bursts. The result is massive hemorrhage with shock‚ severe pain‚ stroke‚ or death. Treatment may involve surgery in which the weakened area of the blood
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Blood Pressure Anatomy And Physiology Breven Sellers 11/3/2014 Arteries • Arteries are thick walled‚ yet they are elastic enough to stand pressure from the heart pumping at a fast rate. The arteries job is to transport blood away from the heart‚ usually only transporting highly oxygenated blood‚ having just left the lungs and on its way to the body’s tissues Arterioles • There are smaller branches of the arteries called arterioles‚ they connect to the capillaries. • Arterioles are the main
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The function of the cardiovascular system The Cardiovascular system circulates oxygen and nutrients to body cells and tissues. It also allows for removal of carbon dioxide and wastes from those cells and tissues. The cardiovascular system delivers hormones to targeted tissues‚ maintains body temperature‚ and helps defend the body. The cardiovascular system is made up of the heart‚ blood and blood vessels. The heart is the pump of the cardiovascular system. It consists of 4 chambers‚ which is
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What is surgery? Surgery (from the Greek kheirurgia‚ meaning ’hand work’) is an ancient medical specialty. It is the branch of medicine concerned with treating or investigating diseases‚ injuries or disorders‚ using manual or operative procedures. There are many different specialties within surgery‚ each of which focuses on a different area‚ as follows: Cardiothoracic Surgery- This branch of surgery concentrates on the heart (cardio) and chest area (thoracic). Cardiothoracic surgeons perform
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back to the lungs. 2. Arteries Carry Blood Away from the Heart Arteries carry oxygenated‚ nutrient rich blood away from the heart‚ to distribute it among the tissues of the body. The thick walls of your arteries contain muscle that absorbs the pressure of the heart beat and helps slow down the flow of the blood. Arteries are often located very close to the surface of the skin. You can feel the pressure of your arterial heart beat in your wrist when you take your pulse. 3. Veins Carry Blood Back to
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6.9 1. Label the following diagram. A) Parietal brancha of superficial temporal artery B) Frontal branch of temporal artery C) Superficial temporal artery D) External carotid artery E) Internal carotid F) Vertebral artery G) Inferior thyroid artery H) Subclavian artery 2. What regions of the face are supplied by the external carotid artery? The face. 3. What is the significance of the transverse foramina in cervical vertebrae? They carry blood vessels and nerves from the body and the
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