Circulatory System

Vocabulary Alveoli – Air sacs that make up the lungs Atrium – top chamber of the heart Blood Vessel – a tube that transports blood

and materials throughout the body Cardiovascular Disease – a disease that

affects the blood, blood vessels and/or heart Gas Exchange – taking in one gas while

dropping off another Heart – organ that pumps blood throughout

the circulatory system Ventricle – lower chamber of the heart

Function

Transports _________, __________, carbon dioxide and _________ to various parts of the body

Nutrients Oxygen

Waste

Heart:

Four chambers: Right Atrium: receives _________________ blood

from the _______ Right Ventricle: sends blood to the ___________ Left Atrium: receives ________________ blood

from the __________ Left Ventricle: sends blood to the __________

_________ Septum – Wall that separates the right and left

sides of the heart Valves – separate the atria and ventricles

DeoxygenatedBody

LungsOxygenated

LungsBody

Parts

Blood Vessels:

Vessel Description

Artery Carries blood ________ ________ the heart

Thick walled

Capillary Food, oxygen and wastes pass in and out of these vessels

Very thin, cells travel single file

Vein Carries blood _________ ________ the heart

Larger than capillaries but thinner than arteries

_________ to prevent backflow

Away From

Back to

Valves

Valve

Blood:

Plasma: the __________ portion of blood, 92% water

RBC: red blood cells, contain ______________ that carries ____________

WBC: white blood cells, fight ____________ Platelets: create ___________ to clot blood

RBC

WBC

Platelets

Liquid

Hemoglobin Oxygen

Disease

Fibrin

Pulse Points:

Can measure _________________ Located at the wrist and ___________

Heart rate

Neck

Blood Types:

Type O is the universal _____________ because it can be donated to any blood type

Type AB is the universal __________ because it can accept any blood type

Rh factor: specific proteins in blood

Rh negative blood: proteins are not present, can only receive __________ blood

Rh positive blood: proteins are present, can receive negative or positive blood

Blood Type

Can Accept during Transfusion

A A or O

B B or O

AB A, B, AB, or O

O O

Donor

Recipient

Negative

Cardiovascular Diseases:

Hemophilia: not enough _____________ to clot blood

Hypertension: __________ blood pressure Atherosclerosis: ____________ of the inner

lining of the arteries, can cause ___________ ____________

Platelets

High

ThickeningHeart attack

or Stroke, limit cholesterol

intake…fried foods

Cardiovascular Diseases:

Sickle cell Anemia: sickle shaped _________ blood cells

Leukemia – a type of

cancer that causes an

increase in the number of white blood cells

Red

Gas Exchange

The Circulatory system gives carbon dioxide to the alveoli (lungs) to be exhaled out of the body

The respiratory system inhales oxygen and gives it to the circulatory system to be transported to the cells throughout the body

6th Grade Review – Energy Resources

Renewable resources don’t run out or can be replaced in your lifetime

ex. Solar, Wind, Running Water, Wood (trees) Nonrenewable resources take millions of

years to form and are in a limited supply

ex. Coal, Oil, Gasoline Nonrenewable resources need to be

conserved and used sparingly by recycling and reducing the use (ex. Carpooling, Mass transit)