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11-1: The Process of Circulation

Circulatory System –

·        ____________________________________________________

·        ____________________________________________________

·       _____________________________________________________

Circulation in Animals

Types of Circulatory Systems

·       Open – ______________________________________________

·       Closed – _____________________________________________

 11-2: The Human Heart

Heart Structure (fig 11-2)

·       __ separate pumps

·       __ chambers (humans)

Atria – ___________________________________________________

Ventricles – ______________________________________________

The Pumping of the Heart

·       When ______________________________________________. When ______________________________________________.

·       ______________ heart rate (HR) should be ________________  _____________(BPM)

After ______________, HR should be approximately __________

Artery ΰ _________________________________________________

Vein ΰ __________________________________________________

The Path of Blood Through the Circulatory System (fig 11-4)

a.          

b.           

c.           

d.           

Heart Valves

Valves –

Two Sets of Valves: (fig 11-5)

1.   Tricuspid Valves – between _____________________________

Bicuspid Valves – between ______________________________

2.   Semilunar Valves – between _____________________________

The sound of your heart beating is caused by valves closing, like a door slamming shut!

·       When _____________________________________________ ΰ “______” sound (this is louder than when semilunar valves close)

·       When ______________________________, ________________ ___________________ ΰ “______” sound

People with a heart murmur have a heartbeat that sounds like this:

·       ____________________ (_________________ valves not closing properly)…or

·       ____________________ (_________________ valves not closing properly)

The Jobs of the Heart (figs 11-7, 11-8)

11-3: Blood Vessels –

1.         Arteries ΰ Carry blood _____________________ heart (aorta, pulmonary artery)

·       ______________________________________

·       ______________________________________

·       ______________________________________

·       ______________________________________

·       ______________________________________

Blood Pressure –

Pulse – Blood moving through arteries = _______________

2.         Veins ΰ Carry blood ____ the heart (vena cava, pulmonary vein)

·       ______________________________________

·       ______________________________________

·       ______________________________________

·       ______________________________________

·       ______________________________________

______________________________________

·       ______________________________________

3.         Capillaries ΰ The ______________ kind of blood vessel

·       ______________________________________

·       ______________________________________

·       ______________________________________

______________________________________

·       ______________________________________

·       ______________________________________

______________________________________

11-4: Problems of the Circulatory System

1.         High Blood Pressure ΰ _____________________ are taken when taking blood pressure

______________________________________

Expressed as a FRACTION

Normal Range: __________

Blood pressure increases with _______.

Hypertension – A disease caused by ______________. ______________________________for easy movement of blood.

·       ______________________________________

·       ______________________________________

·       ______________________________________

·       ______________________________________

·       ______________________________________

Cholesterol –

2.         Heart Attack ΰ

Coronary Vessels –

Coronary vessels ______________________ ΰ lack nutrients and oxygen to certain parts of heart ΰ this part of heart begins to_____

If too much muscle dies, the __________________________ properly ΰ _________________ gets to body tissues ΰ _______!

Preventing Heart Problems

1.         Exercise –

2.         Proper Diet

·       ______________________________________

·       ______________________________________

______________________________________

·       ______________________________________

3.         Don’t Smoke –

4.         Heart Bypass Surgery –

5.         Drugs

·       _______________________________________

·       _______________________________________

6.         Heart Transplant

7.         Artificial Heart – (plastic & metal) ΰ