Transcript Circulatory PPT

2.02 Understand the
functions and disorders of the
circulatory system
2.02 Understand the functions and
disorders of the circulatory system
Essential questions:
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What are the functions of blood?
What are some disorders of the blood?
How are blood disorders treated?
How do you relate the body’s use of nutrients to the blood?
What are the functions of the circulatory system?
What are some disorders of the circulatory system?
How are disorders of the circulatory system treated?
How do you relate the body’s use of nutrients to the circulatory
system?
2.02 Understand the functions and disorders
of the circulatory system
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What are the functions of blood?
Transportation
 What does the blood
transport?
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Why is this an important
function?
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What are the functions of blood?
Regulation
 How does the blood regulate
heat?
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How does the blood regulate
acid/base balance?
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What are the functions of blood?
Protection
 What function of the blood
serve to protect the body?
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What is the relevance to
health?
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Functions of the blood components
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Plasma
Erythrocytes
Leukocytes
Thrombocytes
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Plasma
Plasma
Cellular
elements
2.01 Remember the structures of the
circulatory system
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Erythrocytes
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What are the functions
of erythrocytes?
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hemo= blood
globin= protein
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What is the function of
hemoglobin?
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Erythrocytes
Starts here
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hemolysis
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What is it?
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Where does it occur?
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What is the lifetime of an
erythrocyte?
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What happens to old
erythrocytes?
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Rh factor
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Leukocytes
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What is the function of
leukocytes?
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Compare leukocytes to
erythrocytes.
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Leukocytes
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Agranulocytes
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Lymphocytes
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Monocytes
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Leukocytes
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Granulocytes
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Neutrophils
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Eosinophils
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Basophils
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Inflammation
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Inflammation
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Thrombocytes
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What is the composition of
thrombocytes?
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What is their function?
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Thrombocytes
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Blood types
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Blood types
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Compare blood types. (antigen/antibodies)
A
B
AB
O
Who can receive
type O blood?
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Rh factor
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Blood Disorders
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Anemia
Review the symptoms of
anemia.
Discuss why these
symptoms occur.
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Blood disorders
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Blood disorders
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Blood disorders
Review the symptoms of hemophilia.
Discuss why these symptoms occur.
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Blood disorders
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Leukemia
What is leukemia?
Review the symptoms of
leukemia.
Discuss why these
symptoms occur.
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Blood disorders
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Multiple myeloma
What is multiple myeloma?
What are the symptoms?
How is it treated?
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Blood disorders
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Polycythemia
What is polycythemia?
What are the symptoms?
How is it treated?
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Blood disorders
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Septicemia
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Blood disorders
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Sickle cell anemia
What is sickle cell anemia?
What are the symptoms?
How is it treated?
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What are the
functions of
the heart?
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Functions of the heart
Did you know?
At rest, 2 ounces of blood
is circulated with each heart beat.
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Functions of the heart
It’s a PUMP
What do pumps do?
How does this relate to heart function?
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Hear the beat!
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Blood Pressure FYI
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Blood pressure is the surge of blood when heart
pumps creates pressure against the walls of the
arteries
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SYSTOLIC PRESSURE
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Measured during the contraction phase
DIASTOLIC PRESSURE
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Measured when the ventricles are relaxed
What is the normal range of
blood pressure for an adult?
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Functions of the heart
It’s a PUMP
What makes the pump work?
It’s
electric!
Explain the electrical
activity of the heart.
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It’s electric!
Discuss the function of
the heart’s conduction
system.
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Electrocardiogram
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EKG or ECG
SYSTOLE = contraction phase
DIASTOLE = relaxation phase
Baseline of an EKG is a flat line:
P = Atrial contraction
QRS = Ventricular contraction
T = Ventricular relaxation
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Functions of the heart
It’s a PUMP
What makes the pump work?
It’s
electric!
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of the circulatory system
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Functions of the heart
Transportation
What does the heart transport?
What is involved in the transportation
process?
How is this a circulatory system
function?
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Normal Heart rate
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At rest, your heart rate should average
between 60-90 beats per minute.
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The transportation process
Discuss systemic circulation
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The transportation process
Right side
Superior vena cava
Inferior vena cava
Right atrium
Tricuspid valve
Right Ventricle
Pulmonary valve
Pulmonary artery
Left Side
Pulmonary vein
Left atrium
Bicuspid valve
Left ventricle
Aortic valve
Aorta
Body
Lungs CO2 and O2
exchange
(Schematic of systemic circulation)
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The transportation process
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Discuss
cardiopulmonary
circulation
Compare
Systemic Circulation
To
Cardiopulmonary Circulation
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Vessels of the circulatory system
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ARTERIES
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What are the functions of
arteries?
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What are the characteristics of
arteries?
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Which direction do arteries
flow?
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Vessels of the
circulatory system
Describe arterial blood.
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Vessels of the circulatory system
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VEINS
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What is the function of
arteries?
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What are the characteristics
of arteries?
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Which direction do arteries
flow?
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Compare arterial and venous
blood.
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Vessels of the
circulatory system
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Vessels of the circulatory system
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Vessels of the circulatory system
Capillaries
What is the function of capillaries?
What happens if this action is obstructed?
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Remember Pulse Sites?
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Where do they come from?
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Circulatory disorders
Aneurysm- ballooning out of an
artery.
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Circulatory disorders
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Angina pectoris
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Circulatory disorders
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Arrhythmia
Is any change from normal
heart rate or rhythm
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BRADYCARDIA
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Slow heart rate (<60 beats
per minute)
TACHYCARDIA
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Rapid heart rate (>100
beats per minute)
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Circulatory disorders
Arteriosclerosis- arterial walls
thicken and lose elasticity as aging
occurs.
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Circulatory disorders
Atherosclerosis- occurs when
fatty substances form along the
walls of the arteries.
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Circulatory disorders
Coronary artery disease-narrowing of
the arteries that supply oxygen and
nutrient-filled blood to the heart muscle.
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Circulatory disorders
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Hypertension
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What is hypertension?
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What factors influence the
development of
hypertension?
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How is it treated?
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Why is it called the “silent
killer?”
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Circulatory disorders
Heart failure- occurs
when the ventricles are unable to
contract effectively and blood
Pools in the heart.
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Circulatory disorders
Murmurs- indicate a defect
in the valves of the heart
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Circulatory disorders
Myocardial infarction- heart attack.
Lack of blood supply to the heart
muscle.
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Circulatory disorders
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Peripheral vascular disease- Caused by blockage of the arteries,
especially in the legs.
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Circulatory disorders
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Pulmonary edema
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Circulatory disorders
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Transient ischemic attack- temporary interruption of the blood flow to
the brain.
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Circulatory disorders
Varicose veins- swollen
veins.
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Prevention
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Elevate legs when resting
Wear elastic support stockings
Eating fiber diets
Exercise
Weight control
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Circulatory disorders
Leading Causes of Death:
The Impact of Circulatory Disorders
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Relevance of nutrients
to the blood and circulatory system
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The circulatory
system plays a vital
role in homeostasis
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Absorption and
transport of nutrients to
cells, tissues, organs,
and systems
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