What is the most common type of neural tube defect?

Spina bifida is the most common neural tube defect compatible with life.

Can neural tube defects be detected before birth?

Yes, through prenatal screening tests like detailed ultrasound scans and maternal blood tests (measuring alpha-fetoprotein).

Are neural tube defects hereditary?

They can have a genetic component, as the risk increases with a family history, but most cases are isolated and involve complex gene-environment interactions.

When does the neural tube form and close in a developing baby?

The neural tube forms and closes very early in pregnancy, typically between the 3rd and 4th week after conception, often before a woman knows she is pregnant.

neural tube defect

Low

UK/ˌnjʊə.rəl ˈtjuːb ˌdiː.fekt/US/ˌnʊr.əl ˈtuːb ˌdiː.fekt/

Technical/Scientific/Medical

My Flashcards

Definition

Meaning

A birth defect occurring when the neural tube, which forms the brain and spinal cord, fails to close completely during early embryonic development.

A category of congenital malformations affecting the central nervous system and surrounding structures, including conditions like spina bifida and anencephaly, resulting from disrupted embryogenesis typically in the first month of pregnancy.

Linguistics

Semantic Notes

The term is strictly a medical/embryological classification for a specific developmental anomaly. It is not used figuratively or in non-technical contexts. It is a count noun (a neural tube defect, neural tube defects).

Dialectal Variation

British vs American Usage

Differences

No significant lexical differences. Spelling of related terms may follow regional conventions (e.g., foetal vs. fetal).

Connotations

Identical technical and clinical connotations in both dialects.

Frequency

Equal frequency in medical/academic contexts. Virtually nonexistent in everyday conversation in both regions.

Vocabulary

Collocations

strong

prevent a neural tube defectrisk of a neural tube defectdiagnose a neural tube defectsevere neural tube defectopen neural tube defect

medium

associated with neural tube defectsincidence of neural tube defectsneural tube defect screeningfolic acid and neural tube defects

weak

cause a neural tube defectfamily history of neural tube defectstype of neural tube defect

Grammar

Valency Patterns

[Patient] has/was born with a neural tube defect.[Folic acid] reduces the risk of (developing) neural tube defects.[Screening] can detect a neural tube defect.

Vocabulary

Synonyms

Neutral

NTD (abbreviation)

Weak

neural tube abnormalitydysraphism (specific, related medical term)

Vocabulary

Antonyms

normal neural tube closurehealthy embryonic development

Usage

Context Usage

Business

Not used.

Academic

Standard term in embryology, teratology, medical genetics, and public health research.

Everyday

Rare, used primarily in patient information leaflets, pregnancy advice, or personal/family medical discussions.

Technical

Core diagnostic and categorical term in obstetrics, paediatric neurology, and clinical genetics.

Examples

By Part of Speech

verb

British English

The neural tube defects early in gestation.
The process can defect, leading to abnormalities.

American English

The neural tube defects during the first month.
If it defects, serious consequences follow.

adjective

British English

The neural-tube-defect prevalence is tracked.
She attended a neural tube defect clinic.

American English

Neural-tube-defect research is ongoing.
A neural tube defect diagnosis was made.

Examples

By CEFR Level

Folic acid is important to help prevent neural tube defects in babies.
Doctors can check for a neural tube defect during pregnancy.

The most common neural tube defects are spina bifida and anencephaly.
Maternal nutrition plays a crucial role in reducing the risk of neural tube defects.

Prenatal screening, including alpha-fetoprotein testing and detailed ultrasound, can detect many neural tube defects with high accuracy.
The aetiology of neural tube defects is considered multifactorial, involving both genetic predisposition and environmental factors like folate deficiency.

Learning

Memory Aids

Mnemonic

Think of the neural tube as a 'zipper' forming the spine and brain. A defect is where the zipper gets stuck and doesn't close properly.

Conceptual Metaphor

THE BODY IS A STRUCTURE UNDER CONSTRUCTION; a defect is a construction flaw in a critical pipeline (the neural tube).

Watch out

Common Pitfalls

Translation Traps (for Russian speakers)

Avoid translating 'tube' as 'труба' (pipe/trumpet). The established Russian equivalent is 'дефект нервной трубки'.
Do not confuse with general 'нервный дефект' (nervous defect). It is a specific embryological term.

Common Mistakes

Mispronouncing 'neural' as /ˈnɜː.rəl/ (like 'neutral'). Correct is /ˈnjʊə.rəl/ (UK) or /ˈnʊr.əl/ (US).
Using it as an uncountable noun (e.g., 'neural tube defect is common' – requires an article 'a' or pluralisation).
Confusing it with other congenital disorders like heart defects.

Practice

Quiz

Fill in the gap

Taking folic acid supplements before conception significantly reduces the .

Multiple Choice

What is a primary preventative measure for neural tube defects?

FAQ

Frequently Asked Questions

: Spina bifida is the most common neural tube defect compatible with life.
: Yes, through prenatal screening tests like detailed ultrasound scans and maternal blood tests (measuring alpha-fetoprotein).
: They can have a genetic component, as the risk increases with a family history, but most cases are isolated and involve complex gene-environment interactions.
: The neural tube forms and closes very early in pregnancy, typically between the 3rd and 4th week after conception, often before a woman knows she is pregnant.