Download Day One: Introduction

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Day One: Introduction
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Directions: What is this a picture of? Explain what its purpose is.
These are railroad tracks, which are designed to transport goods over long distances.
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Mr. Shah’s 7th Grade Science Class | Page 1
TALK LIKE A SCIENTIST
Blood vessels which carry oxygenated blood.
Artery:
Blood vessels which carry de-oxygenated blood.
Vein:
I DO: Parts of the Heart
Directions: Let’s label together the key parts of the Circulatory
System. The key terms that we need to find are Right Atrium, Left
Atrium, Right Ventricle, Left Ventricle, and Superior Vena Cava.
Blood Vessel
Function
Artery
Carries blood with
oxygen
Vein
Carries blood without
oxygen
Capillary
Carries individual blood
cells to individual body
cells to bring oxygen
Mr. Shah’s 7th Grade Science Class | Page 2
WE DO: Blood Flow
The blood can flow through the heart in two different ways:
Through the lungs
Through the rest of the body
When you take someone’s blood pressure you test for:
Systolic – pressure in arteries when ventricles contract
Diastolic -pressure in arteries when ventricles relax
Another way to say this is hypertension or hypotension
Blood: The blood within your body has 3 main Functions:
A. Transport oxygen
B. Fight infections
C. Regulate temperature
Mr. Shah’s 7th Grade Science Class | Page 3
YOU DO: Blood Cells
Red Blood Cells
White Blood Cells
Most numerous
Larger than red blood cells
Formed in the bone marrow
Fight off invading organisms (pathogens)
Carry oxygen and nutrients to body and waste back
Release antibodies to help identify pathogens
Filled with the protein hemoglobin, which contains iron
Destroy damaged/infected cells
Directions: Label the heart below with the words in the word bank.
Word Bank
right atrium
right ventricle
left atrium
left ventricle
pulmonary artery
pulmonary vein
aorta
vena cava
septum
valves
oxygen
carbon dioxide
capillaries of the body
capillaries of the lungs
coronary artery
Mr. Shah’s 7th Grade Science Class | Page 4
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Directions: Fill in the boxes using the words below to show the path blood flows through your circulatory system.
Start in the right atrium.
Right atrium
10.
1.
vena cava
right
ventricle
9.
8.
Blood cells pick
up carbon
dioxide
capillaries of
the body
2.
pulmonary
artery
3.
Blood cells pick
up oxygen
Capillaries of
the lungs
7.
aorta
6.
4.
left
ventricle
pulmonary
vein
5.
left atrium
Word Bank:
aorta
right ventricle
right atrium
pulmonary vein
vena cava
pulmonary artery
left ventricle
left atrium
oxygen
carbon dioxide
septum
valves
capillaries of the body
capillaries of the lungs
coronary artery
Mr. Shah’s 7th Grade Science Class | Page 5