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Trang chủTừ điểnDdecussate

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decussate

To cross in the shape of an X, specifically referring to the crossing of nerve fibers or anatomical structures in the body. / To cause two or more structures to cross each other in the form of an X. / Arranged or crossing in the shape of an X, particularly used in botany to describe opposite leaves that are rotated 90 degrees from the pair above or below.
Nội động từNgoại động từTính từ
Quá khứ: decussatedPhân từ 2: decussatedV-ing: decussating

This term is highly specialized and belongs almost exclusively to the registers of anatomy, neurology, and botany. It describes a precise geometric arrangement where structures cross in an X-shape. In a medical context, it is most frequently used to describe the crossing of nerve fibers, such as in the brainstem or spinal cord, which explains why the left hemisphere of the brain controls the right side of the body.

In botanical descriptions, the adjective form refers to a specific pattern of leaf arrangement. Unlike simple opposite leaves, decussate leaves are arranged in pairs that are perpendicular to the pair immediately above or below them, creating a cross-like pattern when viewed from above. It is rarely used in general conversation and would be considered overly technical or archaic outside of scientific discourse.

Ý nghĩa

Nội động từ

To cross in the shape of an X, specifically referring to the crossing of nerve fibers or anatomical structures in the body.

The optic nerves decussate at the optic chiasm.

Ngoại động từ
[~ something]

To cause two or more structures to cross each other in the form of an X.

The nerve fibers decussate in the medulla oblongata.

Tính từ

Arranged or crossing in the shape of an X, particularly used in botany to describe opposite leaves that are rotated 90 degrees from the pair above or below.

The plant is characterized by decussate leaves.

Ví dụ

The motor fibers decussate in the medulla oblongata.

運動神経線維は延髄で交叉する.

Health

Look at how these nerve tracts decussate to connect the two hemispheres.

これらの神経路がどのように交叉して両半球をつなげているか見てください.

School Life

The optic nerves decussate at the optic chiasm.

視神経は視交叉で交叉する.

Health

The surgeon noted that the vessels decussate near the artery.

外科医は血管が動脈の近くで交叉していることに気づいた.

Health

The developmental process will decussate the axons during embryonic growth.

発生過程において、胚の成長中に軸索を交叉させる.

Health

This plant species is characterized by decussate leaves.

この植物種は対生し、各節で直角に交差する葉が特徴である.

Trivia

The leaves are decussate, meaning each pair is perpendicular to the one below it.

葉は十字対生であり、各対がその下の対と直角に配置されていることを意味する.

School Life

I wonder if this specimen has a decussate leaf arrangement.

この標本は十字対生の葉序を持っているのだろうか.

Trivia

The botanist described the foliage as decussate in her field notes.

植物学者はフィールドノートに、その葉を十字対生であると記した.

History

Từ liên quan

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Cập nhật lần cuối: May 2026Báo lỗi