Download Lesson #2

Life is Cool Lesson #2
What are tissues?

A group of similar cells which work
together to do a specific job
Blood



Flows throughout
body in blood
vessels
Carries oxygen and
nutrients to body
cells
Removes waste and
carbon dioxide from
cells
Parts of Blood

Plasma
 Mostly water
 Liquid portion of
blood

Platelets
 Help with clotting

Red blood cells
 Carry oxygen

White blood cells
 Fight infection
Movement of Red Blood Cells

http://www.youtube.com/watch?v=cKX2gAJ
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Blood Vessels/Veins



Found in circulatory
system throughout
the body
Veins carry blood
back to the heart
Hollow tubes
Bone

Framework for the
body
 Muscles attach here

Protect internal
organs
 Skull protects brain
 Ribcage protects heart
and lungs

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Hard tissue that
makes up the skeleton
Contains bone
marrow
Cornea

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
Located on the front
of the eye
Allows light to enter
the eye
Clear covering over
front of eye
Allows eye to see
Skin



Outer covering of
our body
Keeps dirt and
germs from entering
body
Helps control body
temperature
Tendons

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
Attach muscles to
bone
Stretch so muscles
can move bones
Elastic and tubeshaped
Strong connective
tissue
Blood Donation


Blood Banks
Blood Shortage
 Often times, the need for blood is greater than what
is available

Blood Uses
 Help people with chronic disease, cancer, injuries,
and accidents

Who can donate?
 In Kentucky, you must be over 16 (with parent’s
consent)
Blood Donation

http://www.youtube.com/watch?v=WNQ02Iaw-kc

http://www.youtube.com/watch?v=L9qshz2V2mg
References


http://www.google.com/images
Marieb, E. & Hoehn, K. (2007). Human
anatomy & physiology, 7th edition. Pearson
Education, San Francisco, CA.