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isthmus

isthmus

1 8.8
A narrow band of tissue that connects two larger parts of an organ
  • noun
  • /ˈɪsθməs/
  • Specialized
translation icon : isthmo
  • Occasionally, nuclei traversed the isthmus between the cleaving egg and the extruded cytoplasmic material.

Examples

  • The isthmus connecting the two lobes of the thyroid gland is crucial for its function.

  • Blunt trauma to the thorax usually causes dissection of the ascending aorta at the area of ligamentum Botalli (aortic isthmus).

    Academic text (2016)
  • The isthmus of the peninsula and the peak of the mountain came to embody opposite poles.

    Academic text (2005)
  • He's drawing an isthmus...

    Fiction book (1992)
  • The thyroid gland weighs about 20 grams and is composed of two lobes joined by an isthmus, making it look a bit like a butterfly.

    Academic text (2014)
  • At some point, maybe when he was hunkering by the fire, sweet pinon smoke nestling in his hair and clothes, or maybe when the snow stopped and he was peering upward at an isthmus of stars, Andy knew he would come home untouched.

    Fiction book (1998)
  • Doctors often refer to the isthmus of the thyroid when discussing hormonal health.

  • Understanding the isthmus can help in diagnosing certain medical conditions related to anatomy.

Synonyms

band
vsisthmus
  • Specialized
38 7.4

A strip of tissue that connects or supports body parts

is a narrow connecting strip between two larger parts of an organ

Compounds

aortic isthmus
  • Specialized
8.3

Narrow part of the aorta near the heart where upper branches join the lower aorta

A narrow strip of land in southern Thailand that connects the Malay Peninsula to the Asian mainland

A narrow strip of land that connects the Peloponnese to mainland Greece and has the Corinth Canal

Isthmus of Darien
  • Literature
9.6

An old name for the narrow piece of land joining Central America and South America

A narrow strip of land in southern Thailand linking the Malay Peninsula to mainland Asia

A narrow strip of land that connects Central and South America and separates the Caribbean Sea from the Pacific Ocean

A narrow strip of land in northeastern Egypt that joins Africa and Asia

A narrow strip of land in southern Mexico between the Gulf of Mexico and the Pacific Ocean

A narrow area of land between the Gulf of Finland and Lake Ladoga that connects Finland and Russia

How Narrow

strand
58 3.1
isthmus
  • Specialized
1 8.8
band
  • Specialized
38 7.4

Surface Forms

isthmus singular
isthmuses plural

Etymology

Isthmus comes from the Greek word isthmos, which means 'neck'. In anatomy, an isthmus is a narrow strip of tissue that connects two larger parts of an organ, so the word keeps the idea of a 'neck' or small bridge inside the body.