skeletal system warm up: video “did you know” – the human body! what was one thing from the...
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Skeletal System
Warm Up: Video “Did You Know” – The Human Body!
What was one thing from the video that you learned that you “Did NOT Know” before?
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Critical Thinking Review with a partner or group of three…
Make a list (yes that means you need to write down your ideas) of words or phrases that describe the different functions of bones.
Simply Stated: What are our bones used for?
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Here are some possible answers you could have brainstormed with your group.
• Allow for movement• Provide support – ex. There are 24 bones
called vertebrae which make up your back bone. Together, these bones support your head and upper body and protect your spinal cord.
• Protect other parts of your body – What do the cranium and ribs protect?
• Form new blood cells• Store minerals
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Your bones are made up of both living and non-living parts or structures.
What are the living/non-living materials that make up your bones?
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Living Materials:Bone Cells
Cartilage Cells
Blood Vessels
Connective Tissue
Nerves (Neurons)
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Non-Living Materials
Minerals such as Calcium
• What does Calcium do for our bones?• It strengthens our bones.
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Terms:
Joint - the point where two bones meet
Ossification - is the hardening of bones
- Involves the deposits of calcium between the bone cells which make the bone stronger.
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What?!
What is this suppose to represent?
- A joint…
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Parts of the Bone: Definitions!Periosteum – thin , tough, and pink membrane covering the outer layer of the bone.
- It is living tissue surrounding bone and it contains red blood cells and repairs injuries to the bone.
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Parts of the Bone: Definitions!
Articulating Cartilage -
It covers the ends of bones so that it is smooth for sliding.
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Definitions:Spongy Bone:
It is located towards the end of your bones. It the area in your bone that absorbs shock, contains red bone marrow, and produces red blood cells.
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Definitions:Marrow - soft layer of bone material located in the hollow
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Definitions:Bony Layer: - calcified boneIt is located below the periosteum and contains channels that are called,Haversain Canals -
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Haversain Canals -
Contain blood vessels that provide the bone with oxygen and nourishment for its cells.Ossification – occurs when cartilage cells are replaced by bone cells
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Anatomy of the Bone
• Please take out your worksheet that I gave you and let’s label the parts of the bone together.
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Anatomy of a Bone
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Anatomy of a Bone
Spongy Bone
Spongy Bone
Growth Plate
Growth PlateArticular Cartilage
Articular Cartilage
PeriosteumMedullary Canal
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Softball Review! Homework:
Study your notes for a quiz next Thursday on the “Structures of the Bone”.