Word Definition Flashcards
Circulatory system
Helps maintain homeostasis
It consist of the cardiovascular system (heart & blood vessels) and the lymphatic system (structures involved in the conveyance of the fluid, lymph)
Cardio/vascul/ar system
heart vessel pertaining to
Heart and blood vessels
The heart and blood vessels make up the ________________ _________________
Blood vessels include___________
Arteries, arterioles, capillaries, venules, and veins
What are the main types of blood vessels?
Arteries, veins, and capillaries
Arteries
Have thicker walls to stand the high pressure of the hearts pumping action
veins
Have dinner walls
Microscopic capillaries
Are one cell thick
Lymph Node
- is small knots of lymphatic tissue found at intervals along long lymph vessels
A transparent fluid found in lymphatic vessels, consisting of liquid portion and cells that are mostly lymphocytes
-any of the small knots of lymphatic tissue found at intervals along the course of the lymphatic vessels
Arteries
carry oxygen–rich blood to body tissues
Transport blood rich in oxygen
Veins
carry oxygen–poor blood, back to the heart
Transport blood that has had much of its oxygen removed
Arteri/ole
Means little artery
Capillaries
Are microscopic blood vessels that receive blood from the arterioles
Venules
Join the capillaries and veins
Circulation
Means movement in a regular or circular fashion
Two important types of circulation, occur each time the heart beats
Systemic circulation
The general circulation that carries oxygenated blood from the heart to the tissues of the body and returns the blood with much of its oxygen exchange for carbon dioxide back to the heart
The general circulation that transports oxygen to all tissues of the body is ____________
Pulmonary circulation
The circuit that the blood makes from the heart to the lungs for the purpose of ridding the body of carbon dioxide, and picking up oxygen
Remember that ____ provides the means for the blood to take on oxygen from air that we take into our lungs
Atrium
The heart has 4 chambers
RA Right Atrium
LA Left Atrium
RV Right Ventricle
LV Left Ventricle
Ventricle
Chamber of the heart (4)
RV Right Ventricle
LV Left Ventricle
RA Right Atrium
LA Left Atrium
also applied to a chamber of the brain
List the six components of the cardiovascular system to indicate the flow of blood and systemic circulation, as that circulates back toward the heart
Artery, arteriole, capillary, venules, vein, superior and inferior venae cavae
Deoxygenated blood
Oxygen–poor blood
Inferior and superior vena cava
Deoxygenated blood enters the heart on the right side of the body through. It’s two largest veins called___________&___________ __________ ___________
Explanation of the circuit of blood flow
Oxygen-poor blood enters the right side of the heart-lungs(to pick up oxygen)-left side of the-pumped throughout the body-back to the heart to complete the circuit
Inferior vena cava
Blood from the trunk and legs enters the heart via the________ _______ ____
Large vein by which blood enters the heart
Superior vena cava
Blood from the head and arms enters the heart by way of the large vein, the ________ ____ ____
Tricuspid valve
- has three flaps of tissue to prevent backflow of blood
The right atrium contracts to force blood through the_________ _____ into the right ventricle
The valve is the name of the valve between the right atrium and the right ventricle
Oxygenated
At the blood flows through the, it becomes__________(having additional oxygen) and returns to the left side of the heart by way of the pulmonary, which brings the blood to the left atrium .
Mitral valve
A.k.a. bicuspid valve
The left atrium contracts and forces blood into the left ventricle via the______ _____
Is the valve between the left atrium and the left ventricle
Aorta
- is the largest blood vessel in the body.
Is the largest artery of the body and it branches into smaller arteries to carry blood throughout the body
Válvula
Small valves in the body
Pathway of blood through the
Valve open and closed to prevent backflow
Superior vena cava
Inferior vena cava
-Right atrium-Right ventricle-pulmonary artery-lung capillaries-pulmonary vein-left atrium-left ventricle-aorta
Atrioventricular valves
Valves between the atria and ventricles
Left atrioventricular valves
Is generally called the mitral valve in medicine and is so named because the two valve flaps are shaped somewhat like the mitered corner joints of a picture frame
Pulmonary valve
Regulates the flow of blood from the right ventricle to the pulmonary trunk, which divides into pulmonary arteries that lead to the lungs
Pulmonary
Means pertaining to the lungs
Pulmonary arteries
Vessels that carry blood from the heart to the lungs
Pulmonary veins
Vessels that carry blood from the lungs back to the heart
Aortic valve
After flowing from the left atrium to the left, ventricle, blood leaves the heart by way of the______ _____ which regulates the flow of blood into the aorta
Valve leading to the aorta from the left ventricle
Semi lunar valves
The pulmonary and aortic valves are also called(because of the half moon appearance of the cusps)
Valve
Structure that closes and prevents backflow of blood
Heart
Lies in the thoracic cavity and the thoracic cavity is the chest cavity
Media/stinum
Mediastinum
*Is an area in the chest cavity between the lungs. It contains the heart and its large vessels, the trachea, the esophagus and nearby structures, such as the lymph nodes
* a space in the middle of the thoracic cavity
Coronary
Means in circling in the manner of a crown
Coronary arteries
Arteries that supply blood to the heart
Pericardium
The heart is enclosed in__________, a membranous sac
Outer membranous sac of the heart
Epicardium
Myocardium
Endocardium
The tissue layers of the heart starting from the outside
Myocardium
- is the thick metal muscular layer that is made up of fibers that contract Cardiac muscle tissue
The thick, contractile middle layer is made up of muscle fibers that contract which results in a ringing type of movement, that squeezes blood from the heart
Endocardium
*Is the membrane lining the inside of the heart, innermost layer(innermost layer)
Inner lining of the heart
Membrane inside the heart
Pericardium
A tough fibrous tissue that constitutes that outermost sac fits loosely around the heart and protects it
Visceral pericardium
A.k.a. epicardium
The pericardium is composed of an inner visceral layer and an outer tougher layer (parietal pericardium)
Epicardium
Lies on the surface of the heart
Pericardial cavity
The space between the two layers
Septum
A dividing wall, or partition
The four chambered heart is separated into right, and left chambers by a partition called______
Two main coronary arteries.
Left coronary artery(LCA)
Right coronary (RCA)
Three layers of tissue of the heart
Innermost endocardium
Myocardium
Epicardium, a.k.a. Visceral pericardium
Two upper chambers of the heart
Right and left atria(singular-atrium)
Two lower chambers of the heart
Right and left ventricles
Ventricular
Means pertaining to a ventricul
Atrioventricular
atri(o)+ventricular
AV or A-V pertaining to an atrium and ventricle of the heart
Heart valves
The structure that prevent backflow of blood, by opening, and closing with each heartbeat
Deoxygenated blood
Vena cava
Right atrium
Right ventricle
Pulmonary artery
Oxygenated
lungs: exchange of CO2 and O2
Pulmonary veins
Left atrium
Left ventricle
Aorta
Atria
Ventricles
Both atria contract simultaneously, followed by simultaneous contraction of both ventricles
Cardiac conduction system
Composed of highly specialized tissue that is capable of producing and conveying electric impulses
Sino/atrial (SA) node
Sinoatrial Node
- in the heart is also known as the natural pacemaker,
Located at the junction of the right atrium, and the superior vena cava
SA node is also called the sinus node
SA node is the natural pacemaker of the heart
Sinus
A cavity or channel
AV node
Atrioventricular node
It’s a special type of cardiac tissue and is located near the septal wall between the left and right atria
Purkinje fibers
Modified, cardiac fibers that constitute the terminal ramifications of the conducting system of the heart
Blood vessels
Play an important role in providing a continuous supply of oxygen and nutrients to the cells
Capillary
Where the exchange of oxygen for carbon dioxide takes place consists of a single layer of endothelial cells yet blood vessels, especially the arteries are subject to great pressure with each heartbeat
Arteries, veins, and capillaries
Are lined with endothelium, a layer of epithelial cells, which secrete substances that prevent blood clotting, and regulate the tone of the vessels
Arteries and veins
Have three additional layers: an inner layer, a muscular layer, and a white fibrosis outer layer. Arteries are thicker than veins, and their outer layer is elastic, allowing them to expand as the heartbeat forces blood into them.
Arteries
Carry blood away from the heart, and for this reason, blood pressure is much higher in the arteries than in veins
Veins
Also contain valves at various intervals to control the direction of the blood flow back to the heart
Arteri/al
Pertaining to one or more arteries
Ven/ous
Pertaining to, composed of, or affecting veins
arterio/ven/ous
Artery/vein/pertaining to
Pertaining to both arteries and veins
atri/al
atrium/pertaining to
Pertaining to an atrium
cardio/pulmon/ary
heart/lungs/pertaining to
Pertaining to the heart and lungs
sept/al
Septum/pertaining to
Pertaining to the septum
peri/cardi/al
Inside/heart/pertaining to
Pertaining to the pericardium
Endo/cardi/al
Inside/heart/pertaining to
Pertaining to the endocardium
myo/cardi/al
Muscle/heart/pertaining to
Pertaining to the myocardium
pulmon/ary
lung/pertaining to
Pertaining to the lungs
phlebo/tom/ist
vein/to cut/one who
Person with special training in the practice of drawing blood
phlebo/tomy
vein/incision, puncture
Opening of a vein to draw blood for laboratory analysis
myocardium
Cardiac muscle tissue
Endocardium
Inner lining of the heart
arteriovenous
Pertaining to both arteries and veins
Endocardial
Pertaining to the inner lining of the heart
Ventricular
Pertaining to the lower heart chambers
Septal
Pertaining to the septum
Atrial
Pertaining to the upper heart chambers
Aorta
Is the main trunk of the systemic arterial system.
Divide the aorta into three major portions
Ascending aorta
Aortic arch
Descending aorta, which is further divided into the thoracic aorta and the abdominal aorta
Ascending aorta branch
Palmar arches
Ulnar
Radial
Brachial
Axiliary
Write subclavian
Brachiocephalic
Right common carotid
external carotid
Internal carotid
Vertebral
Left common carotid
left subclavian
Aortic arch
Aortic, arch branches
Ascending aorta
Coreneri
Thoracic, aorta branches
Thoracic aorta
Abdominal aorta branches
Common hepatic
Renal
Superior mesenteric
Abdominal aorta
Femoral
Popliteal
anterior tibial
posterior tibial
Dorsal is pedis
left gastric
Splenic
Renal
Gonadal
Interior mesenteric
Left common iliac
Internal iliac
External iliac
aort/ic
aorta/ pertaining to
pertaining to the aorta
intra/aort/ic
within/aorta/pertaining to
Within the aorta
valv/al
valve/pertaining to
pertaining to a valve
valv/ate
valve/the result of an action
Having valves
valvul/ar
valvular
Valve/pertaining to
Pertaining to a valve
Flow of the blood
Oxygen poor blood is Delivered to the right side of the heart beer, the two largest beans, the superior and inferior vena cava. The blood from these two large veins is emptied into the chamber of the heart, called the right atrium. When the heart contracts, what is force through the tricuspid valve to the lower chamber, called the right ventricle. Another contraction of the heart forces, the blood into the pulmonary artery, which branches and carries blood to the lungs, work picks up oxygen. The pulmonary veins take blood back to the heart chamber, called the left atrium. The flow of blood from the left atrium to the left ventricle is controlled by the bicuspid valve. Blood is then pumped into the largest artery in the body the aorta. This vessel, branches many times to become arteries, which organ branch many times to become the smallest artery is called arteriole, which intern branch to become the smallest vessels, where oxygen is delivered to body tissues, these vessels called capillaries, are composed of only a single layer of cells and are continuous with venules, which, in turn or continuous with larger vessels, called veins. These vessels are directly or indirectly connected with the vena cava.
Heart rate (pulse rate)
blood pressure BP
Give a preliminary indication of how well the heart is functioning
Blood pressure
- measures pressure in the large arteries at the height of the pulse wave
Is the pressure exerted by the circulating volume of blood, on the walls of the arteries and veins, and on the chambers of the heart
Indirect measurement
It’s made with a stethoscope, and a sphygmomanometer
Sphygmomanometer
A blood pressure cuff and pressure gauge
Systolic pressure
The first sound heard is noted
The higher reading indicates the ________ ________
Diastolic pressure
The last sound heard (80 mm Hg)
The lower reading indicates the _________ ________
Taking a blood pressure
Cuff pressure inflated above systolic pressure (no pulse sound heard) brachial artery occluded by cuff, no blood flow
Systolic pressure
Pressure in cuff is released to below systolic, but higher than diastolic. Blood spurts into constricted artery.
120mm Hg
Sounds first heard
Diastolic pressure
Pressure in cuff below diastolic
Blood flows freely 80 mm Hg
Sounds disappear
Measurement of blood pressure
A. No phones are heard because the pressure in the cup is higher than the systolic pressure
B. The first sound heard.(a systolic pressure of 120 mm Hg is noted.
C. The last sound heard (80 mm Hg) represents the diastolic pressure.
This example represents a normal blood pressure reading of 120/80 mm Hg (the height of the mercury in a graduated column on the blood pressure apparatus)
Three types of instruments for indirect measurement of blood pressure. Mercury, aneroid, and automatic digital.
D. This type of apparatus has been used in healthcare for more than a century.
E. Anaeroid types have an easy to redial and wall-mounted models are recommended because mechanical jarring may result in less accurate readings
F. An automatic digital instrument that a person can use at home. It also records the pulse.(small reading of “68”
Indirect blood pressure readings
Consist of two numbers expressed as a fraction
The first number represents the maximum pressure on the artery
The second number represents the amount of pressure that still exist when the heart is relaxed(in other words, not contracting)
mm Hg
Millimeters of mercury
Systole
Blood pressure is at its highest point (when the ventricles contract) during_______
Blood pressure that is measured when the ventricles contract is the __________ pressure
Diastole
Relaxation of the ventricles in a heartbeat
Arteries are used to measure blood pressure, and the reading is a reflection of cardiac output, and arterial resistance.
Four factors that increase blood pressure are the
- increased cardiac output.
- increase the blood volume.
- Increased blood viscosity
- Loss of elasticity, of the artery walls.
Arteries
Blood pressure readings, reflect the quantity of blood flow through the heart and resistance in the walls of the________
Hyper/tension
Abbreviated HTN, is increased blood pressure
Hypo/tension
Means decreased blood pressure
Electro/cardio/graphy
The process of recording that electrical currents of the heart
Electrocardiogram
The record produced in electrocardiography is an
Electrocardiograph
- means instrument used to record electrical currents of the heart
The name of the instrument that is used in a electrocardiography is an
Sinus rhythm
Normal heart rhythm
ECG
Electrocardiogram
Reading the electrocardiogram
- The first wave begins to cycle and represents the contraction of the arteri when force in the blood into the ventricles.
- The high pointed hill complex represents the contraction of the ventricles and forth in the blood, into both the pulmonary and systemic circulation.
- The last wave relaxation of the heart occurs.
Then the cycle begins again
Tele/cardio/graphy
Is the recording of a telecardiogram by transmission of impulses to a site that is distant from the patient, it is now regularly done via telephone to a referral center or a physician’s office
Holter monitor
Is a portable electrocardiograph that a person can wear while conducting normal activities
This device records, heart activity overtime, and during various activities to aid in the diagnosis of cardiac problems that occur intermittently
Tachy/cardia
An increased pulse rate (greater than 100 bpm) is
Brady/Cardia
Bradycardia
- refers to slow heart rate of less than 60 bpm
Decreased pulse rate(less than 60 bpm) is
Lipids
Are fatty substances in the body
Cholesterol and triglycerides
Arteriosclerosis
- means the thickening and loss of elasticity of arterial walls
Hardening of the arteries
High levels of these two lipids (cholesterol and triglycerides) are associated with greater risk
Lipo/proteins
Are special proteins that transports lipids in the blood
Low-density Lipoproteins (LDLs)
It’s associated with an increased risk of cardiovascular disease
High-density lipo proteins (HDLs)
Are associated with decreased cardiac risk profiles
A lipid profile report
Shows the amount of LDLs & HDLs
Hypercholesterolemia
Hyperlipidemia
Mean, greater than normal amount of cholesterol and lipids in the blood, respectively
Either of these may lead to atherosclerosis
Hypercholesterolemia
Increased blood cholesterol level
Hyperlipidemia
Increase lipids in the blood
Blood test to assess heart damage
LDH (lactate dehydrogenase) &
CK (creatine kinase) also called CPK (Creatine phosphokinase)
Levels of these enzymes usually rise within a few hours after a heart attack
Examination of a chest x-ray
Gives information about the size and position of the heart(noninvasive)
Cardiac computed tomography
Produces cross-sectional images of the heart
Noninvasive
Cardiac MRI
Magnetic resonance imaging of the heart
Non-invasive
Doppler ultrasonography
Noninvasive procedure using ultrasonic waves
Echocardiography
Ultrasonography of the heart
To monitor blood flow through the heart or blood vessels, allowing the examiner to hear and record alterations in blood flow. It can locate vessel obstructions and measure the speed of blood flow.
Non-invasive
Echocardiogram
- means a record of the heart produced during echocardiography
The graphic record of the heart obtained during echocardiography
Doppler ultrasonography is a technique in which Doppler echocardiography is used to evaluate the direction and pattern of blood flow within the heart
Transesophageal echocardiogram
(TEE ) is an endoscopic ultrasound test that provides ultrasonic Imaging of the heart from a retrocardiac vantage point (inside the esophagus)
Positron emission tomography
A computerized radiographic technique that uses radioactive substances to examine the myocardial metabolic activity
Echocardiographer
One who demonstrates the procedure of an echocardiography
Stress test
Test that measure the hearts response during controlled, physiologic stress, usually exercise
Treadmill, stress test
In the treadmill, exercise test, an ECG and other measurements are taken, while the patient walks on a inclined treadmill at varying speeds and inclines
Thallium stress test
And other nuclear medicine procedures, also measure cardiovascular function, particularly in coronary artery disease
Non-invasive procedures include the following
Cardiac computed tomography
Cardiac MRI
Doppler ultrasonography
Echocardiographic
Echocardiogram
Transesophageal echocardiogram
Positron emission tomography
Stress tests
Treadmill, stress test
Thallium stress test
Invasive procedures include the following
Arteriography
Anteriograph
Anteriogram
Coronary arteriography
Aortography
Aortogram
Cardiac catheterization
Coronary angiography
Coronary angiogram, a.k.a. angiocardiography
digital subtraction angiography (DSA)
electrophysiology studies
Arterio/graphy
Radiography of arteries, after injection of radiopaque material into the bloodstream.
Literally, this word means recording of the arteries
Arteriograph
Arteriogram Used interchangeably
Just as photographs is used to mean the record produced in photography
Coronary arteriography
Is a radiographic procedure used to study coronary arteries
Aorto/graphy
Is radiography of the aorta after introduction of a contrast medium
Aortogram
The film produced by aortography
Thoracic, Abdominal, and renal aortography
Are examples of areas of the aorta that are studied
Cardiac catheterization
A diagnostic procedure in which a catheter is introduced through an incision in to a large blood vessel of the arm leg or neck, and threaded through the circulatory system to the heart
Coronary angiography
Angiocardiography
Radiography of the heart, and it’s vessels by injecting of radioplaque contrast medium directly into coronary arteries, using the same procedure as that used for cataract catheterization