cardiovascular system - comed.uobaghdad.edu.iq€¦ · · 2013-12-12cardiovascular system ... the...
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Cardiovascular System
This Lecture is Devised by Dr. Mohammed Qasim & Dr. Rasha Ali
Baghdad College Of Medicine
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Cardiovascular System
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Objectives
After studying this chapter you will be able to:
•Name the parts of the cardiovascular system.
•Define combining forms used in building words that relate to the cardiovascular system. •Analyze, define & pronounce the new terms introduced in this Chapter. •Comprehension of English language
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Lectures can be downloaded and viewed from this site
• http://www.comed.uobaghdad.edu.iq/PageViewer.aspx?id=1
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Student Duties • 1- Read the lecture before attending
• 2- Print out the exercises of this lecture and hand it to the lecturer ‘solved’. It is your homework. You should write on it your name, the date, your group and the name of your lecturer.
• A piece of advice: Take a look at the exercises of the lecture before your actual reading, it will help you design your strategy of studying.
• Note (1): The methodology of your exercises of your formative assessment in this lecture and in the other lectures of the terminology module are similar to Summative exams.
• Note (2): If you encounter new terms, please use your e- learning skills or a dictionary to identify them.
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The Heart The Heart
•Pumps blood through the blood vessels to all body cells.
•Is covered by a protective sac called the pericardium (peri (surrounding); cardi/o (heart). This is divided into two layers the visceral and parietal pericardium.
•Is divided into right and left sides by the septum. From the Latin word saeptum .
•Each side consists of an atria and a ventricle.
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Layers of the Heart
Layers of the Heart
Inside the pericardium, the heart has three layers of tissue.
•Epicardium: epi- (on, upon); cardi/o (heart). The outermost layer
•Myocardium : my/o (muscle); cardi/o (heart) . The heart muscle that included nerves and blood vessels. It is the (middle layer of the heart that is muscular tissue)
•Endocardium: endo (within); cardi/o (heart). (inner layer)
myocardium
epicardium
endocardium
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Heart Chambers Heart Chambers
•Atria (singular atrium). A Latin word meaning entry hall. Upper two of the four heart chambers composed of the Right and left atria .
•Ventricles, from the Latin Venter (little belly) Right and left ventricles are the lower chambers of the heart.
•Fibers in the ventricles (Purkinje fibers) cause the ventricles to contract.
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Arteries and Veins
Arteries
•From the Greek word arteria (windpipe) Carry blood away from the heart.
•From the Latin word Vena. It Carries blood from tissue toward the heart.
V e i
n s
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Valves of the Heart Valves of the Heart
Atrioventricular Valves Semilunar Valves
Cross Sectional Top View of Heart
•Bicuspid valve (mitral): From
the Latin word mitra (turban);
from the Latin word valva
(that which turns); bi- (two);
from the Latin cuspiderm
(cusp or point)
•Tricuspid valve: tri-
(three); from the Latin
cuspiderm (cusp or point)
•Pulmonary valve: pulmon/o (lung); from
the Latin word valva (that which turns)
•Aortic valve
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Blood Pressure Blood Pressure
•Measures the force of the blood surging against the walls of the arteries.
Systole
A Greek word means Contraction. It is the Contraction phase of the heart
Diastole
From the Greek word diastole. It is the Relaxation phase of the heart
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Combining Form Meaning
angi (o)
aort (o)
arteri (o)
ather (o)
atri (o)
cardi (o)
hemangi (o)
blood vessel
artery
fatty matter
atrium
heart
blood vessel
aorta
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Combining Forms & Abbreviations [pericardi(o)] Combining Form Meaning
pericardi (o)
phleb (o)
sphygm (o)
thromb (o)
vas (o)
ven (o)
pericardium
vein
pulse
blood clot
blood vessel
vein
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Diagnostic, Procedural & Laboratory Tests
Cardiology is the treatment of cardiovascular diseases and the physician who specializes in heart conditions is called a cardiologist.
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Electrocardiography n Diagnostic Tests
•Electr/o (electricity); cardi/o (heart); -gram (record or picture). Produces an electrocardiogram which measures the amount of electricity that flows through the heart.
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Blood Pressure
Blood Pressure abnormalities can damage the heart and other body systems.
•Hypertension hyper- (high); -tens- (pressure) ……….(too high)
•Hypotension hypo- (low); -tens- (pressure) …………(too low)
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Specific Inflammatory Heart Conditions
•endocarditis
•myocarditis
•bacterial endocarditis
•pericarditis
Different Inflammatory conditions of the heart
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Surgical Terms
The goal of most cardiovascular surgery is to improve blood flow to all body cells.
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PTCA Percutaneous transluminal coronary angioplasty (PTCA) is a surgical procedure in which a balloon catheter is inserted into a blocked blood vessel to increase the blood flow of that vessel.
Narrowed artery with balloon catheter positioned.
Inflated balloon presses against arterial wall.
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Cardiac Catheterization Cardiac Catheterization cardi/o (heart); -ac (pertaining to); from the Greek word kathienai (to let down, thrust in) is the most common type of operation performed
Balloon valvuloplasty: from the Latin word valva. (that which turns); -plasty (surgical repair )
•Surgical repair to open narrowed cardiac valve openings.
Coronary angioplasty: angi/o (blood vessel); -plasty (surgical repair).
•Surgical repair of a blood vessel.
Angioscopy; angi/o (blood vessel); -scopy (to view)
•Uses a fiberoptic catheter to view the interior of a blood vessel
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Antianginals Antianginals
Drugs used to treat chest pain and prevent attacks of angina
Antianginals: Anti- (against); angi/o (blood vessel); -al (adjective suffix).
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Rhythm Disorders
Rhythm disorders are treated with medications that normalize the heart rate by affecting the nervous system that controls the heart rate.
Medications for: RHYTHM DISORDERS
•Antiarrhythmics: anti- (against); a (without) rhythm: heart rhythm
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Other terms
Term Analysis Meaning
Arteriosclerosis From the Greek word arteria (windpipe); scler/o (hardness); -osis (abnormal condition of)
Hardening of the arteries
Arteriostenosis From the Greek word arteria (windpipe); from the Greek word spastikos (afflicted with spasm)
Narrowing of an artery
Atrial fibrillation From the Latin word atrium (entry hall) -al (adjective suffix); from the Latin word fibra (fiber, string, thread)
Rapid, random, ineffective contraction of the heart.
Cardiorrhexis Cardi/o (heart); -rrhexis (rupture) Rupture in the wall of the heart
Dyscrasia (dys-KRAY-sha)
Dys- (bad, difficult); from the Greek word krasis (mingling)
General term for a blood disorder)
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Term Analysis Meaning
Hemophilia (Haemophilia)
Hem/o (blood); philia (abnormal attraction)
Congenital disorder affecting the coagulation process
Hemorrhage (Haemorrhage)
Hem/o (blood); -rrhage (burst forth)
Discharge of blood
Hyperlipidemia (hyperlipidaemia)
Hyper (above normal); lip/o (fat); demia (from the hema (blood)
Elevated cholesterol, triglycerides, lipoproteins in the blood
Ischemia From the Greek word iskhaimos (a stopping of the blood); ia (condition)
Deficiency in blood supply
Myocardial infarction (MI)
My/o (heart); cardi/o (heart) ; -al (adjective suffix); from the Latin word infractionem (a breaking)
Heart attack
Tachycardia Tachy- (fast); cardi/o (heart) ; ia (condition)
Abnormality rapid heartbeat
Diuretic From the Greek word diouretikos (prompting urine)
A drug used to increase urine production or urination
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Hemophilia
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Hemorrhage
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Xanthelasma (Hyperlipidemia)
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Ischemia
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• The Formative assessment of the Cardiovascular system
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Q1. Case study-MI
• Read the following excerpt from an Emergency Room. Present this case to your colleagues out loud. Explain your Case then in your (Native) Mother tongue.
• Chief complaint: Crushing chest pain x 1 hr.
• Present illness: this patient is 67-year-old male who experienced sudden pain in his chest with radiation to his left arm. He said he broke out in sweat and has trouble breathing .when paramedics arrived, patient was sitting and feeling slightly better.ECG showed slight abnormalities.O2 applied via mask. Patient transported via Emergency Room where appropriate investigations were done
• Examination: alert and oriented in acute distress,complaining of crushing chest pain, cardiac monitor reveals left ventricular abnormalities, possible infarct ,diaphoresis, tachypnea,and flushed face also noted
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• Impression: Acute myocardial infarction
• Plan:
1-repeat cardiac enzymes x 8 hrs.
2-oxygen via nasal canula
3-state cardiology consult
4-prepare for cardiac catheterization
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Q2. • -gram -itis -um
Cardi/o My/o Peri-
Angi/o Arter-
Endo- Vas/o
Inner surface of the heart
Inflammation of heart muscle
Inflammation of artery
Heart muscle
Inflammation of the heart
Inflammation of outer layer of heart
Printed record of blood vessels
Graphic tracing of electrical activity of heart
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Queen Puabi (Also called: Shubad) Photo from the British museum
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