Unit 3,cardiovascular system Flashcards
the heart
The hearts natural pacemaker is located in the
right atrium
Ischemia
Heart muscle loses blood supply
Infarction
Death of heart muscle cells
oxygenated blood is on the
left side
deoxygenated blood is on the
right side
The circulatory system is also known as the
Transportation system
What is this system made up of
-the heart
-blood vessels
-lymphatic vessels
-lymph nodes
-spleen
-blood
What is the muscular pump of the body
the heart
Where is the heart located
the mediastinal cavity
Endocardium
lines the inside of the heart
Myocardium
the thickest layer (muscular middle layer)
Pericardium
covers the outside of the heart, separated by pericardial fluid
The septum
muscular wall that separates the heart into right and left side
Why is the septum separated
prevents blood from flowing between the right & left side of the heart
What does the septum do
lines the inside of the heart
Cardio refers to
The heart
Arteries
Blood vessels that carry blood away from the heart
Veins
Blood vessels that bring blood back to the heart
Capillaries are
vessels that bring oxygen and carbon dioxide between the body and blood cells
Right atrium
Deoxygenated blood
Right ventricle
Pump’s deoxygenated blood from the lungs
Pulmonary artery
Carries deoxygenated blood from the heart to the lungs
Pulmonary veins
Bring oxygenated blood back from the lungs to the heart
Left atrium
Receives oxygenated blood from the lungs
Left ventricle
Pumps oxygenated blood to the body
Signs & symptoms of CHF include
Edema
The purpose of a stent is to
Keep an artery open
The purpose of a TED hose is
Prevent blood clots
The ____ carries fresh oxygenated blood to nourish the body
Artery
The top chamber of the heart is the
Atria
The bottom chamber of the heart is the
Ventricles
One way valves in the chamber keep the blood flowing in the right direction is the
Mitral valve
Mitral valve
Between left atrium & the left ventricle
Purpose of the valves
To keep the blood flowing in correct direction
Where is the tricuspid valve located
Between right atrium & right ventricle
Pulmonary valve
Located between right ventricle & pulmonary artery
Pulmonary artery
Carries blood to the lungs
How many chambers are in the heart?
4
How many valves are in the heart?
4
The left atrium is the largest chamber of the heart.
No, the left ventricle
Is the tricuspid valve is located on the left side of the heart.
Yes
Do arteries carry deoxygenated blood.
Yes
The Atria ____ pushing blood into the ventricles
Contracts
When referring to the heart what does contracting mean
The muscle is tightening & squeezing to pump blood out of the heart
Then atria relaxes & blood returning from the rest of the body enters the
right atria
Blood returning from the lungs enters the
left atria
Deoxygenated blood enters the
Right side of the heart
Then that oxygen-rich blood
re-enters the heart on the
Left side of the heart
Aortic valve
Between the left ventricle
Aorta
The largest artery in the body
Systolic pressure
Pressure placed on the vessel makes it increase
Diastolic pressure
When the heart relaxes between beats and refills with blood
3 types of blood vessels
Arteries
Capillaries
Veins
The only artery in the body that carries deoxygenated blood
Pulmonary artery
The aorta branches into
the arteries of the body
What carries the blood to the heart
The veins
2 largest veins
Superior & inferior vena cava
Superior & inferior vena cava bring
Blood from the body to the right atrium
Capillaries are the smallest ___ & venules are the smallest ___
Arteries, veins
Capillaries
thin walls that allow O2 & nutrients pass
Components made up of blood are
Plasma
&
Blood cells
The average adult has
4-6 quarts of blood
Plasma is
90% water
3 types of blood cells
RBC, WBC, & thrombocytes
Thrombocyte is aka
Platelets
Embolus
moving blood clot
Thrombus
stationary blood clot
hypertrophy
increase in size
angina
chest pain
