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Biology - Semester 2 - Bone/Muscle/Skin
N/A
17
Biology
10th Grade
05/25/2010

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Term
Osteocyte
Definition
"Bone Cell"
Term
Ossification
Definition
Bone formation - finished by age 20.
Term
Marrow
Definition
Fills hollow bones, and is used for both blood production ,and fat storage.
Term
Ligaments
Definition
Connect bone to bone.
Term
Cartilage
Definition
Protects and cushions the bones of a joint.
Term
Joint
Definition
Where two bones come together.
Term
Tendon
Definition
Attaches muscles to bone.
Term
Origin
Definition
The Non-moving attachment.
Term
Insertion
Definition
The Moving attachment.
Term
Antagonistic Pair
Definition
Two muscles that work against each other, one contracting while the other relaxes.
Term
Epidermis
Definition
The layer of dead skin cells on the outside of the body.
Term
Dermis
Definition
Is thicker than the epidermis, and contains the nerve cells.
Term
Sebaceous
Definition
Used for oil excretion.
Term
Melanin
Definition
How much you have determines your skin darkness.
Term
Lactic Acid
Definition
Builds up, and causes you muscles to get fatigued.
Term
Flexor
Definition
Decreases the distance between the bones of a joint.
Term
Extensor
Definition
Increases the distance between the bones of a joint.
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