Definition of crista in English:

crista

noun

  • 1Anatomy Zoology
    A ridge or crest.

    • ‘The crista prootica is a ridge or ledge of the prootic which runs antero-posteriorly along the side of the braincase above the otic capsule.’
    • ‘Near the front of the brain, in the midline, a deep sagittal groove in the dura indicates the site where the crista galli of the ethmoid bone is accommodated.’
    • ‘The falx is narrow and attached firmly to the crista galli of the ethmoid bone.’
    • ‘The medial edge of the maxilla supports a shelf or ridge, the crista choanalis, which Mendrez-Carroll suggested represented an early stage in the evolution of a bony secondary palate.’
    • ‘The posterior lingual and buccal cristae do not meet the median longitudinal crista.’
  • 2Biology
    Each of the partial partitions in a mitochondrion formed by infolding of the inner membrane.

    • ‘The inner mitochondrial membrane is folded into cristae that permeate the soluble, internal matrix.’
    • ‘The cytoplasm was full of elongated mitochondria, rich in cristae, and with pale matrix.’
    • ‘In the swollen mitochondria, the cristae system practically disappeared.’
    • ‘Mitochondria showed an intact double membrane, with internal cristae.’
    • ‘The mitochondria are conventional, with flattened cristae.’

Origin

Mid 19th century: from Latin, tuft, plume, crest.

Pronunciation:

crista

/ˈkrɪstə/