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zona

zona

1 9.9
A ring of tissue that goes around a body part
  • noun
  • /ˈzoʊnə/
  • Specialized
translation icon : zona
  • He studied the zona of the heart.
  • zona pellucida
  • egg's zona
  • sperm pierces the zona

Examples

  • Researchers are studying how the zona influences the process of fertilization in mammals.

  • Certain parasites invade through the zona of a host's tissue.

  • Scientists observed a distinct zona around the affected lymph node.

  • The zona pellucida is a thick membrane surrounding the mammalian egg cell.

  • The zona pellucida surrounds the ovum.

  • During fertilization, the sperm must travel through the zona to reach the egg.

  • The zona acts as a protective barrier around the ovum during reproduction.

Synonyms

zonule
vszona
  • Specialized
9.9

A small band of tissue that holds or supports body parts

is any encircling band not limited to small structures
zonula
vszona
  • Specialized
9.9

A thin band of tissue that joins cells together

is broader meaning any encircling band in the body

Compounds

zona fasciculata
  • Specialized
9.9

Middle layer of the adrenal gland that makes the stress hormone cortisol

zona pellucida
  • Specialized
9.9

A clear thick layer around a mammal's egg that sperm must pass through

Surface Forms

zona singular
zonas plural

Etymology

Zona comes from the old Greek zōnē, meaning 'belt' or 'girdle', so in anatomy a zona is a beltlike or encircling part of the body.