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Chapter 10 The Cardiovascular System
The Cardiovascular System, Dr. T, EU
117
Biology
Undergraduate 4
10/03/2011

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Term
Analgesic
Definition

Pertaining to relieve pain; a medication that relieves pain

 

(an-al-JEE-sik)

Term
Anastomosis
Definition

A surgical joining of two ducts, blood vessels, or bowel segments to allow flow from one to the other. 

 

(an-nas-toh-MOH-sis)

Term
Aneurysm
Definition

Localized dilation of a weakened are of the wall of an artery. the weakened area balloons out with every pulsatino of the artery

 

(AN-yoo-rihzm)

Term
Aneurysmectomy
Definition

Surgical removal of the sac of an aneurysm

 

(AN-yoo-riz-MEK-toh-mee)

Term
Anomaly
Definition

Deviation form normal;

birth defect;

for example, cogenital anomaly


(ah-NOM-ah-lee)

Term
Anorexia
Definition

Lack or loss of appetite, resulting in teh inability to eat. Anorexia is seen in individuals who are depressed, with the onset of fever and illness, with stomach disorders, or as a result of excessive intake of alcohol or drugs

 

(an-oh-REK-see-ah)

Term
Anorexia 
Definition

Lack or loss of appetite, resulting in the inability to eat. Anorexia is seen in individuals who are depressed, with the onset of fever and illness, with stomach disorders, or as a result of excessive intake of alcohol or drugs. 

 

(an-oh-REK-see-ah)

Term
Arthralgia
Definition

Joint pain

 

(ar-THRAL-jee-ah)

Term
Ascites
Definition

An abnormal collectionof fluid within the peritoneal cavity (the peritoneum is the serous membrane that lines the entire abdominal cavity).

This fluid contains large amounts of protein and electrolytes.

General abdominal swelling occurs with ascites. 

 

(ah-SIGH-teez)

Term
Asystole
Definition

Absence of contractionso of the heart

 

(a-SIS-toh-lee)

Term
Atherosclerosis
Definition

A form of arteriosclerosis (hardening of the arteries) characterized by fatty deposits buidlig up within the inner layers of the walls of larger arteries. 

 

(ath-er-oh-scleh-ROH-sis)

Term
Benign
Definition

Noncancerous; not progressive

 

(bee-NINE)

Term
Bruit
Definition

An abnormal sound or murmur heard with a stethoscope when listening to a carotide artery, organ, or gland; for example, during auscultation 

plural pronuncation: bree-EEZ

 

(brew-EE)

Term
Cardiologist
Definition

one who specializes in teh study of diseases and disorders of the heart

 

(car-dee-ALL-oh-jist)

Term
Cardiology
Definition

The study of the heart 

 

(car-dee-ALL-oh-jee)

Term
Carditis
Definition

Inflammation of the heart muscles

 

(car-DYE-tis)

Term
Claudication
Definition

Cramplike pains in the calves of the legs caused by poor circulation to the muscles of the legs; commonly associated with atherosclerosis

 

(klaw-dih-KAY-shun)

Term
Coronary Artery
Definition

One of the pair of arteries that branch from the aorta. The coronary arteries and their branches supply blood and oxygen to the heart muscle (myocardium). 

 

Term
Cusp
Definition
any one of the small flaps on the valves of the heart
Term
Dependent Edema
Definition

A fluid acumulatin in the tissues influenced by gravity; usually greater in teh lower extremities than in tissue levels above the level of the heart. 

 

(dependent eh-DEE-mah)

Term
Diastole
Definition

The period of relaxation of the heart, alternating with the contraction phase known as systole

 

(dye-ASS-toh-lee)

Term
Dysrhythmia
Definition

Abnormal rhythm

 

Term
Echocardiogram
Definition

The graphic outline or record of movemetns of structures of the heart produced by ultrasonography (ultrasound)

 

(ek-oh-CAR-dee-oh-gram)

Term
Endocarditis
Definition

Inflammation of the inner lining of the heart

 

(en-doh-car-DYE-tis)

Term
Epicardium
Definition

The inner layer of the pericardium, which is the double-folded membrane that encloses the heart

 

(ep-ih-CARD-ee-um)

Term
Hepatomegaly
Definition

Enlargement of the liver

 

(heh-pat-oh-MEG-ah-lee)

Term
Homan's Sign
Definition

Pain felt in the calf of the leg, or behind the knee, when the examiner is purposefly dorsiflexing the foot of the patient (bending the toes upward toward the foot). If the patient feels pains, it is called a positive Homan's sign (indicating thrombophlebitis). 

 

Term
Hyperlipidemia
Definition

An excessive level of fats in the blood

 

(high-per-lip-ih-DEE-mee-ah)

Term
Hypertension
Definition

elevated blood pressure persistently highter than 135/85 mmHg

arterial hypertension

Term
Hypoxemia
Definition

Insufficient oxygenatin of arterial blood

 

(high-pox-EE-mee-ah)

Term
Infarction
Definition

A localized area of necrosis (death) in tissue, a vessel, an organ, or a part resulting from lack of oxygen (anoxia) due to interruptted blood flow to the area

 

(in-FARC-shun)

Term
Ischemia
Definition

Decreased supply of oxygenated blood to a body part or organ

 

(iss-KEY-mee-ah)

Term
Lesion
Definition

a wound, injury, or any pathological change in body tissue

 

(LEE-zhun)

Term
Lipid
Definition

any of a group of fats or fatlike substances found in the blood. 

examples: cholesterol, fatty acids, and triglycerides

Term
Lumen
Definition

A cavity or the channel within any organ or structure of the body; the space wihtin an artery, vein, intestine, or tube

 

(LOO-men)

Term
Malaise
Definition

A vague feeling of body weakness or discomfort, often indicating the onset of an illness or disease 

 

(mah-LAYZ)

Term
Malaise
Definition

A vague feeling of body weakness or discomfort, often indicating the onset of an illness or disease

 

(mah-LAYZ)

Term
Mediastinum
Definition

The area between the lungs in teh chest cavity tht contains teh heart, aorta, trachea, esophagus, and bronchi

 

(mee-dee-ass-TYE-num)

Term
Murmur
Definition
a low-pitched humming or fluttering sound, as in a "heart murmur," heard on auscultation
Term
Myocardium
Definition

The middle muscular layer of the heart

 

(my-oh-CAR-dee-um)

Term
Nocturia
Definition

Urination at night

 

(nok-TOO-ree-ah)

Term
Occlusion
Definition

Clsure, or state of being closed

 

(ah-KLOO-shun)

Term
Orthopnea
Definition

An abnormal condition in which a person sits up straith or stand up to breathe comfortably

 

(or-THOP-nee-ah)

Term
Orthopnea
Definition

An abnormal condition in which a person sits up straight or stands up to breathe comfortably

 

(or-THOP nee-ah)

Term
Pacemaker
Definition
the SA node (sinoatrial) of the heart located int eh right atrium. It is responsible for initiating the heartbeat, influencing the rate and rhythm of the heart beat. The cardia pacemaker (artifical pacemaker) is an electric apparatus used for maintaining a normal heart rhythm by electrically stimulating the heart muscle to contract. 
Term
Palpable
Definition
detectable by touch
Term
Palpitation
Definition
A pounding or racing of the heart, associated with normal emotional responses or with heart disorders 
Term
Pericardial
Definition
Pertaining to the pericardium
Term
Pericardium
Definition

The double membranous sac that encloses the heart and the origins of the great blood vessles

 

(pair-ih-CAR-dee-um)

Term
Petechiae
Definition

Small, purplish, hemorrhagic spots on teh skin; may be due to abnormality in the blood-clotting mechanism of the body

 

(peh-TEE-kee-ee)

Term
Pitting Edema
Definition
is swelling, usually of the skin of the extremities, that when pressed firmly with a finger will maintain teh dent produced by the finger
Term
Prophylactic
Definition

An agent that protects against disease

 

(proh-fih-LAK-tik)

Term
Pulmonary Artery
Definition
One of a pair of arteries that transports deoxygenated blood from the right ventricle of the heart ot the lungs for oxygenation. the pulmonary arteries are the only arteries int eh body to carry deoxygenated blood
Term
Pulmonary Circulation
Definition
Teh circulation of deoxygenated blood from teh right ventricle of the heart to the lungs for oxygenation and back to the left atrium of the heart; that is from the heart, to the lungs, back to the heart. 
Term
Pulmonary Vein
Definition
only veins in teh body to carry oxygenated blood
Term
SA node
Definition
Sinoatrial node; pacemaker of the heart
Term
Septum
Definition
A wall, or partition, that divides or separates two cavities. the interatrial septum separates teh right and left atria, the atrioventricular septum separates teh atria and teh ventricles, adn teh interventricular septum separates teh right and left ventricles. 
Term
Serum Sickness
Definition

A hypersensitivity reaciton that may occur two to three weeks after administration of an antiserum. Symptoms include fever, enlargement of the spleen (splenomegaly), swollen lymph nodes, joint pain, adn skin rash

 

(SEE-rum)

Term
Sydenham's Chorea
Definition

A form of chorea (involuntary muscle twitching) associated with rheumatic fever, usually occurring in childhood 

 

(SID-en-hamz koh-REE-ah)

Term
Systemic Circulation
Definition
The circualtion of blood from the left ventricle of the heart, thorughout the boyd, and back to the right atrium of the heart. Oxygenated blood leaves the left ventricle ofhte heart and is distributed to the capillaries. Deoxygenated blood is picked up fromthe capillaries and is transported back to the riht atrium of the heart
Term
Systole
Definition

The contraction pahse of the heartbeat forcing blood intot he aorta and the pulmonary arteries.

Systole is marked by the first sound heard on auscultation, or the first pulse palpated, after the release of the blood pressure cuff (sphygmomanometer)

 

(SIS-toh-lee)

Term
Thrombosis
Definition

The formation or existence of a blood clot

 

(throm-BOH-sis)

Term
Vasoconstriction
Definition
Narrowing of the lumen of a blood vessel
Term
Vegetation
Definition
An abnormal growth of tissue around a valve
Term
Anxiety
Definition

A feeling of apprehension, worry, uneasiness, or dread, especially of the future 

 

(ang-ZIGH-eh-tee)

Term
Bradycardia
Definition

A slow heart rate characterized by a pulse rate under 60 beats per minute. 

 

(BRAD-ee-CAR-dee-ah)

Term
Cyanosis
Definition

Slightly bluish, grayish, slatelike, or dark discoloration of the skin due to the presence of abnormal amounts of reduced hemoglobin in the blood.

 

(sigh-ah-NO-sis)

Term
Dyspnea 
Definition

Difficult breathing; air hunger resulting in labored or difficult breathing, sometimes accompanied by pain (normal when caused by vigorous work or athletic activity). 

 

(DISP-nee-ah)

Term
Headache
Definition

a diffuse pain in different portionso fhte head and not confined to any nerve distribution area. 

 

(HED-ache)

Term
Pallor
Definition

Lack of color, paleness; an unnatural paleness or absence of color in the skin. 

 

(PAL-or)

Term
Palpitation
Definition

Rapid, violent, or throbbing pulsation, as an abnormally rapid throbbing or fluttering of the heart.

The palpitation is felt by the patient. 

 

(pal-pih-TAY-shun)

Term
Tachycardia
Definition

Abnormal rapidity of heart action, usually defined as a heart rate over 100 beats per minute

 

(TAK-ee-CAR-dee-ah)

Term
Angina Pectoris
Definition

is severe pain and constriction about the heart, usually radiating to the left shoulder and down and the left arm, creating a feeling of presure in the anterior chest. 

 

(ah-JI-nah PECK-tor-si)

Term
Cardiac Tamponade
Definition

Compression of the heart caused by accumulation of blood or other fluid wihtin teh pericardial sac. The accumulation of luid in teh pericardial cavity prevents the ventricles from adequately filling pumping blood. 

Can be life threatening if left untreated 

 

(CAR-dee-ah TAM-poh-nod)

Term
Cardiomyopathy 
Definition

is disease of the heart muscle itself, primarily affecting the pumping ability of the heart. This noninflammatory disease of the heart results in enlargement of teh heart (cardiomegaly) and dysfunction of the ventricels of the heart. 

 

(CAR-dee-oh-my-OP-ah-thee)

Term
Congestive Heart Failure
Definition

Condition characterzed by weakness, breathlessness, abdominal discomfort. Edema in the lower portions of the body resulting from teh floow of the blood vessels being slowed (venous stasis) and the outflow of blood from teh left side of the heart is reduced. The pumpting ability of teh heart is progressively impaired to the pint that it no longer meets bodily needs; also known as cardiac failure. 

 

 

Term
Coronary Artery Disease
Definition

is the narrowing of the coronary arteries to the extent that adequate blood supply to teh myocardium is prevented. 

Treatments: 

Percutaneous transluminal coronary angioplasty (nonsurgical):

ballon inflated and stuff compressed

then replaced with stent

Directional Coronary Atherectomy:

plaque is shaved

 

Term
Endocarditis
Definition

Inflammation of the membrane lining of the valves and chambers of the heart caused by direct invasion of bacteria or other organisms and leading to deformity of the valve cusps. Abnormal growths called vegetations are formed on or within the membrane

 

(EN-doh-car-DYE-tis)

Term
Hypertensive Heart Disease
Definition
is a result of long-term hypertension. The heart is affected because it must work against increased resistance due to increased pressure in the arteries. 
Term
Mitral Valve Prolapse
Definition
is drooping of one or both cusps of the mitral valve back intot he left atrium during ventricular systole (when teh and heart is pumping blood), resulting in incomplete closure of the valve mitral insufficiency. 
Term
Myocardial Infarcation
Definition

Heart attack: a condition caused by occlusion of one or more of the coronary arteries. This life-threatening condition results when myocardial tissue is destroyed in areas of the heart that are deprived of an adequate blood supply due to the occluded vessels. 

 

Term
Myocarditis
Definition

Inflammation of the myocardium may be caused by viral or bacterial infections or may be a result of systemic diseases such as rheumatic fever. This may also be caused by fungal infections, serum sickness, or a chemical agent. 

 

(MY-oh-car-DYE-tis)

Term
Pericarditis
Definition

Inflammation of the pericardium (the saclike membrnae that covers the heart muslce). It may be acute or chronic. 

 

(per-ih-car-DYE-tis)

Term
Rheumatic Fever
Definition

An inflammatory disease that may develop as a delayed reaction to insufficiently treated group A beta-hemolytic streptococcal infection of the upper respiratory tract.

 

(roo-MAT-ic fever)

Term
Aneurysm
Definition

A localized dilatation of an artery formed at a weak point in t vessel wall. this weakened area balloons out with each pulsation of the artery

 

(AN-yoo-rizm)

Term
Arteriosclerosis
Definition

An arterial condition in which there is thickening, hardening, and loss of elasticity of the walls of arteries, resulting in decreased blood supply, especially to the lower extremities and cerebrum This is also called hardening of the arteries. 

 

(ar-TEE-ree-oh-skleh-ROH-sis)

Term
Arteriosclerosis
Definition

An arterial condition in which there is thickening, hardening, and loss of elasticity of the walls of arteries, resulting in decreased blood supply, especially to the lower extremities and cerebrum. This is also called hardening of the arteries. 

 

(ar-TEE-ree-oh-skleh-ROH-sis)

Term
Hypertension
Definition
A condition in which the patient has a higher blood pressure than that judged to be normal
Term
Peripheral Arterial Occlusive Disease
Definition
Obstruction of the arteries in the extremities (predominantly the legs) The leading cause of this disease is artherosclerosis, which leads to narrowing the lumen of the artery. The classic symptom is intermittent claudication, which is a cramplike pain in teh muslces brought on by excercie and relieved by rest. 
Term
Raynaud's Phenomenon
Definition

Intermittent attacks of vasoconstriction of the arterioles (causing pallor of the fingers or toes), followed by cyanosis and then redness before returning to normal color; initiated by exposure to cold or emotional distrubance. 

 

(ray-NOZ feh-NOM-eh-non)

Term
Thrombophlebitis
Definition

Inflammation of a vein associated with the formation of a thrombus (clot); usually occurs in an extremity, most frquently a leg

 

(throm-boh-fleh-BY-tis)

Term
Varicose Veins
Definition

Enlarged, superficial veins; a twisted, dilated vein with incompetent valves

 

(VAIR-ih-kohs veins)

Term
Venous Insufficiency
Definition

An abnormal circulatory condition characterized by decreased return of venous blood from the legs to the trunk of the body

 

(VEE-nuss in-soo-FISH-in-see) 

Term
Coarctation of the Aorta
Definition

A congenital heart defect characterized by a localized narrowing of the aorta, which resutls in increased blood pressure in the upper extremities (area proximal to the defect) and decreased blood pressure in the lower extremities (area distal to the defect) 

 

(KOH-ark-TAY-shun)

Term
Patent Ductus Arteriosus
Definition

is an abnormal opening between the pulmonary artery and the aorta caued by failure of the fetal ductus arteriosus to close after birth. 

This defect is seen primarily in premature infants.

 

(PAY-tent DUCK-tus ar-TEE-ree-OH-sis)

Term
Tetralogoy of Fallot
Definition

A congenital heart anomaly that consists of four defects:

1)pulmonary stenosis, (narrowing of the opening into the pulmonary artery from the right ventricle) 

2)interventricular septal defect,

3)dextroposition (shifting to the right) of the aorta so that it receivs blood from both ventricels,

4)and hypertrophy of the right ventricle

named form the French physician, Etienne Fallot, who first described the condition 

 

(teh-TRALL-oh-jee of fal-LOH)

 

Term
Transposition of the Great Vessels
Definition

A condition in which the two major arteries of the heart are reversed in position, which results in two noncommunicating circulatory systems. 

 

(tranz-poh-ZIH-shun)

Term
Arrhythmia
Definition
any deviation from the normal pattern of the heartbeat
Term
Atrial Flutter
Definition
Condition in which the contractions of the atria become extremely rapid, at the rate of between 250 and 350 beats per minute. 
Term

Fibrillation

(atrial/ventricular)

Definition

Atrial fibrillationis extremely rapid, incomplete contractions of the atria resulting in disorganized and uncoordinated twitching of the atria. 

 

(fih-brill-AY-shun)

Term
Heart Block
Definition
is an interference with the normal conduction of electric impulses that control activity of the heart muscle
Term
Ventricular Tachycardia
Definition

is a condition in which the ventricles of the heart beat at a rate greater than 100 beats per minute; characterized by three or more consecutive premature ventricular contractions (PVCs). 

Also known as "V-tach" (VT)

 

(ven-TRIK-yoo-lar TAK-ee-CAR-dee-ah)

Term
Angiography
Definition

X-ray visualization of the internal anatomy of the heart and blood vessels after introducing a radiopaque substance (contrast medium) that promotes the imaging (makes them visible) of internal structures at are otherwise difficult to see on X-ray film. This substance is injected into an artery or a vein. 

 

(an-jee-OG-rah-fee)

Term
Cardiac Catheterization
Definition

A diagnostic procedure in which a catherter is introduced into a large vein or artery (usually of an arm or a leg) and then threaded through the circulatory system to the heart. 

It is used to obtain detailed information abou tht estructure and funciton of the heart chambers, valves, and the great vessels. 

 

(CAR-dee-ak cath-eh-ter-ih-ZAY-shun)

Term
Cardiac Enzymes Test
Definition

are performed on samples of blood obtained by venipuncture to determine the presence of damage to the myocardial muscle

 

(CAR-dee-ak EN-zyms test)

Term
Computed Axial Tomography (CAT)
Definition

is a diagnostic X-ray technique that uses ionizaing radiation to produce a cross-sectional image of the body. It is often used to detect aneurysms of the aorta. 

X-ray signals are fed into a computer, which then turns them into a cross-sectional picture of hte section of the body being scanned;

called CAT scan

 

(computed AK-see-al toh-MOG-rah-fee)

Term
Echocardiography
Definition

is a diagnostic procedure for studying the sturcture and motion of the heart. It is useful in evaluating structural and functional changes in a variety of heart disorders. 

 

(ek-oh-car-dee-OG-rah-fee)

Term
Electrocardiogram
Definition

is a graphic record (visual representation) of the electrical action of the heart as reflected from various angles to the surface of the skin; known as an EKG or ECG

 

(ee-lek-troh-CAR-dee-oh-gram) 

Term
Event Monitor
Definition

is similar to the Holter monitor in that it also records the electrical activity of the heart while the patient goes about usual daily activites. 

It can be used for a longer period of time than a Holter monitor. 

Term
Exercise Stress Testing 
Definition
A means of assessing cardiac function by subjecting the patient to carefully controlled amounts of physical stress. 
Term
Holter monitoring 
Definition
A small, portable monitoring device that makes prolonged electrocardiograph recordings on a portable tape recorder. The continuous EKG is recorded on a magnetic tape recording while the patient conducts normal daily activit. 
Term

Implantable Cardioverter Defibrillator

(ICD)

Definition
is a small, lightweight, electronic device placed under the skin or muscle in either the chest or abdomen to monitor the heart's rhythm. If an abnormal rhythm occurs, the ICD helps return the heart to its normal rhythm. 
Term

Magnetic Resonance Imagining 

(MRI)

Definition
invovles the use of a strong magnetic field and radiofrequency waves to produce imaging that is valuable in providing images of the heart, large blood vessels, brain, and soft tissue. 
Term

Positron Emission Tomography 

(PET)

Definition

A computeried X-ray technique that uses radioactive substances to examine the blood flow and the metabolic activity of various body structures such as teh heart and blood vessles. The patient is given doses of strong radioactive tracers by injection or inhalation. The radiation emitted is measured by the PET camera. 

 

(PAHZ-ih-tron ee-MISH-un toh-MOG-rah-fee)

Term
Serum Lipid Test
Definition

measures the amount of fatty substances (cholestorl, triglycerides, and lipoproteins) in a smaple of blood obtained by venipuncture

 

(SEE-rum LIP-id test)

Term
Thallium Stress Test
Definition

one of several nuclear stress tests, is a combination of exercise stress testing with thallium imagining (myocardial perfusion scan) to assess changes in coronary blood flow during exercise

 

(THAL-ee-um stess test) 

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