zona

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

[zō′nə] pl. zonae

Etymology: Gk, zone, belt

a zone, or girdlelike segment of a rounded or spheric structure. See also zone.

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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.

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Patient discussion about zona.

Q. Is chicken pox dangerous to my fetus? I am pregnant and have never had chicken pox before. My daughter is 2 years old and has not had chicken pox before and hasn't been vaccinated against it either. If she does catch chicken pox can this be dangerous to me or the fetus?

A. If a pregnant woman who hasn't had chickenpox in the past contracts it (especially in the first 20 weeks of pregnancy), the fetus is at risk for birth defects and she is at risk for more health complications than if she'd been infected when she wasn't pregnant. If she develops chickenpox just before or after the child is born, the newborn is at risk for serious health complications. Therefore, it is advised that you vaccinate your daughter against chicken pox so she will not catch it and then could not pass it on to you.

Q. what is shingles?

A. Shingles is a skin rash caused by the same virus that causes chickenpox. The virus responsible for these conditions is called the Varicella zoster virus (VZV). After an individual has chickenpox, this virus lives in the nervous system and is never fully cleared from the body. Under certain circumstances, such as emotional stress, immune deficiency (from AIDS or chemotherapy), or with cancer, the virus reactivates causing shingles. In most cases, however, a cause for the reactivation of the virus is never found. Anyone who has ever had chickenpox is at risk for the development of shingles, although it occurs most commonly in people over the age of 60. The herpes virus that causes shingles and chickenpox is not the same as the herpes virus that causes genital herpes (which can be sexually transmitted) and herpes mouth sores. Shingles is medically termed Herpes zoster.
http://www.medicinenet.com/shingles/article.htm
Hope this helps.