mandible

Chin's bony anchor

The mandible is the lower jaw—the hinged bone that moves when you chew or speak.

In anatomy, it's the only movable bone of the skull.

The term extends to the jaw-like mouthparts of insects and crustaceans, the paired structures they use for grasping and cutting food: The beetle's mandibles clicked as it fed.

jaw

maxilla

Upper jaw bone

muzzle · temporomandibular · hinge · joint · occlusion · overbite · underbite · gums · teeth · mouth

chewing

mastication

Teeth-based food breakdown

  • bitePierce with teeth
  • gnawBite repeatedly at
  • chompLoud, vigorous mouthwork

grind · crunch · clamp · nibble · munch · bolus · teeth · incisors · molars · premolars

skeletal

bone

Hard skeletal tissue

skeleton · ossified · anatomy · fossil · vertebrate · osteology · temporal · condyle · ramus · coronoid

insect

arthropod

Jointed-limb invertebrate phylum

grasshopper · dragonfly · pincer · labrum · labium · mouthparts · chitin · exoskeleton · entomology · invertebrate

speech

articulation

Clear vocal expression

phonetics · vocalization · talking · speaking · lockjaw · tetanus

Categories
Opposites
jaw anatomy

mandiblemaxilla

Upper jaw bone

upper jaw · cranium · skull

Family

mandibles, mandibular

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