© 2015, Cengage Learning. All Rights Reserved. The Cardiovascular System Chapter 5.

© 2015, Cengage Learning. All Rights Reserved.

The Cardiovascular SystemThe Cardiovascular System

Chapter 5


Overview of Structures, Combining Forms,and Functions of the Cardiovascular SystemOverview of Structures, Combining Forms,

and Functions of the Cardiovascular System


Heart

• Primary Function – Pumps blood into the arteries

• Related Word Parts (Combining Forms)

– card/o, cardi/o


Anterior Cross-Section of the Heart

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The Chambers of the Heart

• Atria: the two upper chambers of the heart– Chambers divided by interatrial septum

• Ventricles: the two lower chambers of the heart

– Chambers divided by interventricular septum


Valves of the Heart

• Tricuspid valve: controls the opening betweenthe right atrium and the right ventricle

• Pulmonary semilunar valve: located betweenright ventricle and pulmonary artery

(continues)


Valves of the Heart

• Mitral valve: located between left atrium andleft ventricle

• Aortic semilunar valve: located between leftventricle and aorta


Blood Vessels

• Primary Function – Transport blood to and from all areas of the body

• Related Word Parts (Combining Forms)– angi/o, vas/o


Arteries

• Primary Function – Transport blood away from the heart to all

body parts

• Related Word Parts (Combining Form)– arteri/o


Capillaries

• Primary Function – Permit the exchange of nutrients and waste

products between the blood and the cells

• Related Word Parts (Combining Form)– capill/o


Veins

• Primary Function – Return blood from all body parts to the heart

• Related Word Pats (Combining Forms)– phleb/o

– ven/o


Blood

• Primary Function– Brings oxygen and nutrients to the cells

– Carries away waste

• Related Word Pats (Combining Forms)– hem/o, hemat/o


Major Fluid and FormedComponents of Blood

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Key Word Parts and Definitions

• angi/o– blood or lymph vessel

• aort/o– aorta

• arteri/o– artery

• ather/o– plaque, fatty substance

(continues)



• brady-– slow

• cardi/o– heart

• -crasia– a mixture or blending

• -emia– blood, blood condition

(continues)



• erythr/o– red

• hem/o, hemat/o– blood, relating to the blood

• leuk/o– white

• phleb/o– vein

(continues)



• tachy-– fast, rapid

• thromb/o– clot

• ven/o– vein


QuestionsQuestions


Question

If you are a universal donor, your blood groupis type O.

True or False?


Answer

True


Question

What percentage of a person’s body weightis blood?

a. 10%

b. 7%

c. 20%


Answer

b. 7%


Question

Women have on average 10% more red bloodcells than men.

True or False?


Answer

False. Men have an average of 10% morered blood cells than women.


Question

An individual blood cell takes about 60 secondsto make a complete circuit of the body.

True or False?


Answer

True

© 2015, Cengage Learning. All Rights Reserved. The Cardiovascular System Chapter 5.

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Transcript of © 2015, Cengage Learning. All Rights Reserved. The Cardiovascular System Chapter 5.