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WOOD PARTS AND ANATOMY
Taking a Closer Look
at Wood
What Have We Learned So Far?
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In the this section, we talked about the following terms:
- Phloem
- Cambium
- Rays
- Xylem
- Fibers
- Vessels
We also talked about the following concepts:
- Phloem is located just inside the bark, and is commonly called inner bark.
- Like bark, phloem is not really wood!
- Phloem carries sugar from the leaves to the rest of the tree.
- Cambium is located just underneath the phloem.
- Cambium makes new phloem on the outside, and new xylem on the inside.
- Rays radiate inward from the cambium to the center of the tree.
- Rays move sap to the center parts of the tree.
- Rays can cause dark or light discolorations in wood.
- Xylem is located just inside the cambium.
- All wood, including heartwood and sapwood, is made up of xylem.
- Xylem is made up of long, skinny, straw-like cells called fibers.
- Vessels are large water-carrying cells that run parallel to xylem fibers.
- Hardwoods have vessels; softwoods do not.
- Sometimes the cells next to vessels grow into the vessels, blocking them off.
- If the vessels are plugged you can't blow bubbles through them. ;^>
Well, that sums up our the second part of our Wood Parts and Anatomy lesson.
Now it's time to take the great BIG ...
Wood Parts and Anatomy Quiz!
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