Circulatory System Flashcards
(110 cards)
1
Q
Pulmonary Arteries
A
2
Q
Pulmonary Veins
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3
Q
Aorta
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4
Q
Valves
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5
Q
Arteries
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6
Q
Veins
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7
Q
Systolic Pressure
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8
Q
Diastolic Pressure
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9
Q
Pulmonary Pathway
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10
Q
Systemic Pathway
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11
Q
Coronary Pathway
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12
Q
Key Questions
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13
Q
What are the three functions of the circulatory system?
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14
Q
What are the three main structures of the circulatory system?
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15
Q
What are the four main chambers of the heart?
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16
Q
What muscular wall separates the ventricles?
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17
Q
Which side of the heart circulates oxygen poor blood?
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18
Q
Which side of the heart circulates oxygen rich blood?
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19
Q
What are the four one-way valves inside the heart?
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20
Q
What are the three main pathways of circulation?
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21
Q
What are the three main types of blood vessels?
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22
Q
Which node trogers a heartbeat?
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23
Q
What causes a heart murmur?
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24
Q
What does an Fog do?
A
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How do we ca culate cardiac outout?
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What is a sphygmomanometer?
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What happens if a blood vessel is blocked/ruptures?
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What does the
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circulatory
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system do?
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Functions of the
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Circulatory
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System
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1) Transports gases
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nutrients
and wastes
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throughout your body
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2) Regulates internal
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temperature and
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carries hormones
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3)
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Protects against
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distases and blood
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What type of muscle tissue is the heart made up of?
The heart is made up of cardiac muscle, which is found nowhere else in the body.
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How many chambers does the heart have?
The heart has 4 chambers: two atria on the top and two ventricles on the bottom.
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What do the atria do?
The atria are filled with incoming blood.
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What do the ventricles do?
The ventricles receive blood from the atria and pump it out of the heart.
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What separates the atria and ventricles?
The atria and ventricles are separated by a thick muscular wall called the septum.
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What is the condition of blood in the right side of the heart?
The right side of the heart contains oxygen-poor blood.
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What are the main structures of the circulatory system?
1) Heart - pumps blood throughout the body
2) Blood vessels - 'roadways' for the blood to travel
3) Blood - carries the essential products required for a healthy body
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What are the functions of the heart?
• Pumping blood through the body
• Keeping oxygen-rich blood separate from oxygen-poor blood
• Ensuring that blood only flows in one direction through the body
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Where is the heart located?
The heart is located slightly to the left of the middle of the chest.
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What does the right side of the heart do?
Receives oxygen-poor blood coming back from the body and sends it to the lungs.
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What are the two large vessels that open into the right atrium?
The vena cavae.
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What is the function of the superior vena cava?
Returns oxygen-poor blood from the chest and above.
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What is the function of the inferior vena cava?
Returns oxygen-poor blood from below the chest.
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How does blood flow through the right side of the heart?
Blood flows from the right atrium into the right ventricle.
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What flows from the right atrium?
Blood flows from the right atrium into the right ventricle.
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Where does blood go from the right ventricle?
Blood flows from the right ventricle into the pulmonary trunk.
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What happens to blood after it enters the pulmonary trunk?
It flows out through the right and left pulmonary arteries to the lungs.
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What is the function of the left side of the heart?
The left side of the heart does the opposite of the right side.
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Where does oxygen-rich blood come from?
Oxygen-rich blood flows from the lungs through the pulmonary veins to the left atrium.
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What happens to blood in the left atrium?
From the left atrium, blood is pumped into the left ventricle.
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How does blood leave the heart?
From the left ventricle, the blood leaves the heart through a large vessel called the aorta to the rest of the body.
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27 of 118
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Valves
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• There are 4 one-way valves inside
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the heart to prevent backflow
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• The atria and ventricles are separated
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by valves called the atrioventricular
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valves (AV valves)
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Valves
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• The right AV Valve is
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called the tricuspid
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valve because it is
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made up of 3 flaps
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• The left AV Valve is
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the called the
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bicuspid valve
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because it has 2 flaps
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(bicuspid also called Mitral valve)
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tricuspid
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bicuspid
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Valves
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The other two valves are called semilunar valves
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because of their half-moon shape
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opening for
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pulmonary
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cross-section
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coronary artery
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semilunar valve
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aortic semilunar
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Figure 8.3 This cross-
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section of a mammalian
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heart shows the structure
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of the four valves. The
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bicusoid valve is also called
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the mitral valve because it
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is shaped like a mitre.-the
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Coremonial neardress worn
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by high officials of the
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- tricuspid atrioventricular
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bicuspid or mitral)
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atrioventricular valve
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fibrous skeleton
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Valves
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• The right semilunar valve is
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called the pulmonary valve
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• The left semilunar valve is
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called the aortic valve
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Roth semilner vaivas
