zona (redirected from zona pectinata)

zona /zo·na/ (zo´nah) pl. zo´nae   [L.]

1. zone.

2. herpes zoster.

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zona arcua´ta  inner tunnel.

zona cilia´ris  ciliary zone.

zona denticula´ta  the inner zone of the lamina basilaris of the cochlear duct with the limbus of the osseous spiral lamina.

zona fascicula´ta  the thick middle layer of the adrenal cortex.

zona glomerulo´sa  the thin outermost layer of the adrenal cortex.

zona hemorrhoida´lis  that part of the anal canal extending from the anal valves to the anus and containing the rectal venous plexus.

zona incer´ta  a narrow band of gray matter between the subthalamic nucleus and thalamic fasciculus.

zona ophthal´mica  herpetic infection of the cornea.

zona orbicula´ris articulatio´nis cox´ae  a ring around the neck of the femur formed by circular fibers of the articular capsule of the hip joint.

zona pectina´ta  the outer part of the lamina basilaris of the cochlear duct running from the rods of Corti to the spiral ligament.

zona pellu´cida  the transparent, noncellular secreted layer surrounding an oocyte.

zona perfora´ta  the inner portion of the lamina basilaris of the cochlear duct.

zona reticula´ris  the innermost layer of the adrenal cortex.

zona tec´ta  inner tunnel.

zona vasculo´sa  a region in the supramastoid fossa containing many foramina for the passage of blood vessels.

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zo·na (zn)

n. pl. zo·nae (-n)

1. An encircling or beltlike anatomical structure. Also called segment, zone.

2. See shingles.

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zona

pl. zonae [L.] zone.

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zona alba

the white line in the horse's hoof.

zona arcuata

see zona glomerulosa (see below).

zona fasciculata

the thick middle layer of the adrenal gland.

zona glomerulosa

the outermost layer of the adrenal cortex. Called also zona multiformis.

zona multiformis

see zona glomerulosa (above).

zona pellucida

1. the transparent, noncellular, secreted layer surrounding an ovum.

2. area pellucida.

zona radiata

a zona pellucida exhibiting conspicuous radial striations.

zona reaction

caused by the penetration of the zona pellucida by the spermatozoa.

zona reticularis

the innermost layer of the adrenal cortex.

zona striata

a zona pellucida exhibiting conspicuous striations.