Biology / Unit 13 Bio 3103 short lesson, about 20 seconds
Fibrous Joints
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The idea
A fibrous joint connects bones directly with dense connective tissue and allows little or no movement between them.
In practice
The sutures joining an adult skull's plates are fibrous joints that permit essentially no motion.
Where people slip
Fibrous joints are immobile in adults, but an infant's skull sutures stay flexible enough to allow passage through birth.
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