Temporomandibular joint

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  • Created by: Kelsey G
  • Created on: 06-01-16 11:38
What is the temporomandibular joint?
The meeting of the upper temporal bone and the mandible.
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What is the condyle?
The round end of the lower jaw.
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What fits into the socket when the jaw is closed?
The articular disk and the condyle.
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How is the mandible primarily moved?
By the four muscles of mastication
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What are the four muscles of mastication?
The masseter, the lateral pterygoid and medial pterygoid and the temporalis
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What is the articular disc made of?
Cartilage
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What does the articular disc do?
It divides the joint into two compartments
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What makes up the lower compartment?
The condyle and the articular disc
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What movement does the lower compartment allow?
Rotational movement - the initial movement of the jaw when the mouth opens
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What makes up the upper compartment?
The mandibular fossa and the articular disc
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What movement does the upper compartment allow?
Translational movement - the secondary gliding as the jaw opens widely
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Other cards in this set

Card 2

Front

What is the condyle?

Back

The round end of the lower jaw.

Card 3

Front

What fits into the socket when the jaw is closed?

Back

Preview of the front of card 3

Card 4

Front

How is the mandible primarily moved?

Back

Preview of the front of card 4

Card 5

Front

What are the four muscles of mastication?

Back

Preview of the front of card 5
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