2.02 Understand the functions and disorders of the circulatory system

2.02 Understand the functions and disorders of the circulatory system 2

2.02 Understand the functions and disorders of the circulatory systemEssential questions: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?

What are the functions of blood?

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Transportation

What are the functions of blood?

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Regulation

What are the functions of blood?

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Protection

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Functions of the blood components

Plasma Erythrocytes Leukocytes Thrombocytes

Plasma

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Plasma

Cellular elements

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Erythrocytes

Hemoglobin helps to transport

oxygen TO the tissues

helps to transport

some carbon dioxide AWAY from the tissues

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Erythrocytes

hemolysis1) What is it?

2) Why does it occur?

3) What is the lifetime of an erythrocyte?

4) What happens to old erythrocytes?

Starts here

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Rh factor

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Leukocytes Function

Compare leukocytes to erythrocytes.

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Leukocytes

Agranulocytes Lymphocytes

Monocytes

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Leukocytes

Granulocytes Neutrophils

Eosinophils

Basophils

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Inflammation

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Inflammation

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Thrombocytes/Platelets

What is the composition of thrombocytes/platelets?

What is their function?

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Thrombocytes

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Blood types

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Blood types

Comparison of blood types (antigen/antibodies) Someone with type A antigen has B antibodies Someone with type B antigen has A antibodies Someone with type AB antigen has no antibodies Someone with type O antigen has A and B antibodies

Who can receive type O blood?

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Rh factor

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Blood Disorders AnemiaReview 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

LeukemiaLeukemia

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Blood disorders

Multiple Myeloma

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Blood Disorders

Polycythemia Plasma

Cellular

elements

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Blood Disorders

Septicemia

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Blood disorders 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 heartIt’s a PUMP

What do pumps do?What do pumps do?

How does this relate to heart function?How does this relate to heart function?

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Hear the beat!

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Blood Pressure FYI

Blood pressure is the surge of blood when heart pumps creates pressure against the walls of the arteries

SYSTOLIC PRESSURE Measured during the contraction phase

DIASTOLIC PRESSURE Measured when the ventricles are relaxed

What is the normalblood pressure for an adult?

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It’s electric!

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Electrocardiogram 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

Transportation

What does the heart transport?What does the heart transport?

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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

Lungs CO2 and O2 exchange

Left SidePulmonary vein

Left atrium

Bicuspid valve

Left ventricle

Aortic valve

Aorta

Body

(Schematic of systemic circulation)

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The transportation process

Cardiopulmonary circulation

CompareSystemic Circulation ToCardiopulmonary Circulation

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Vessels of the circulatory system ARTERIES

What are the functions of arteries?

What are the characteristics of arteries?

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 VEINS

What is the function of veins?

What are the characteristics of veins?

Which direction do veins flow?

Compare arterial and venous blood.

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Vessels of the circulatory system

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Vessels of the circulatory systemCapillaries

What is the function of capillaries?What happens if this action is obstructed?

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Remember Pulse Sites?

Where do they come from?

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Circulatory Disorders

Aneurysm

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Circulatory Disorders

Angina pectoris

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Circulatory Disorders

Arrhythmia

BRADYCARDIA

TACHYCARDIA

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Circulatory Disorders

Arteriosclerosis

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Circulatory disorders

Atherosclerosis

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Circulatory isorders

Coronary artery disease

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Circulatory Disorders

Coronary Artery Disease

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Circulatory Disorders

Hypertension (HTN)

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Circulatory Disorders

Heart Failure

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Circulatory Disorders

Murmurs

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Circulatory Disorders

Myocardial infarction

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Circulatory Disorders

Peripheral Vascular Disease

(PVD)

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Circulatory Disorders

Transient Ischemic Attack (TIA)

Circulatory Disorders

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Cerebral Vascular Accident

(CVA)

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Circulatory Disorders

Varicose Veins

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Circulatory DisordersLeading Causes of Death:

The Impact of Circulatory Disorders

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Relevance of nutrients to the blood and circulatory

system