gap junction: meaning, definition, pronunciation and examples
C2+Technical/Scientific
Quick answer
What does “gap junction” mean?
A specialized intercellular connection in animal tissues that directly connects the cytoplasm of adjacent cells, allowing for rapid and direct communication via the passage of ions and small molecules.
Audio
Pronunciation
Definition
Meaning and Definition
A specialized intercellular connection in animal tissues that directly connects the cytoplasm of adjacent cells, allowing for rapid and direct communication via the passage of ions and small molecules.
In a broader metaphorical sense, sometimes used to describe a direct, uninterrupted channel for communication or flow between two entities or systems.
Dialectal Variation
British vs American Usage
Differences
No significant lexical differences. Pronunciation follows the general accent differences between BrE and AmE.
Connotations
Purely technical and scientific in both varieties, with no regional connotative differences.
Frequency
Used with equal, domain-specific frequency in both BrE and AmE scientific literature.
Grammar
How to Use “gap junction” in a Sentence
Gap junctions {verb} between cells.Gap junctions in {tissue}.The formation of gap junctions.{Connexin} constitutes a gap junction.Vocabulary
Collocations
Examples
Examples of “gap junction” in a Sentence
verb
British English
- The cardiomyocytes are closely gap-junctioned.
- These proteins gap-junction the adjacent cells.
American English
- The neurons are gap-junctioned for rapid signalling.
- Connexins gap-junction neighbouring astrocytes.
adverb
British English
- The cells communicated gap-junctionally.
- Signals spread gap-junctionally through the tissue.
American English
- The ions moved gap-junctionally between the cells.
- They were coupled gap-junctionally.
adjective
British English
- The gap-junctional communication was impaired.
- A gap-junctional plaque was visible under the microscope.
American English
- Gap-junctional coupling is essential for the heart's rhythm.
- They studied the gap-junctional permeability.
Usage
Meaning in Context
Academic
Dominant context. Used in biology, physiology, medicine, and neuroscience research papers.
Everyday
Virtually never used outside of educational or professional scientific contexts.
Technical
The primary context. Refers to specific protein structures facilitating direct cytoplasmic continuity.
Vocabulary
Synonyms of “gap junction”
Strong
Neutral
Weak
Vocabulary
Antonyms of “gap junction”
Watch out
Common Mistakes When Using “gap junction”
- Using 'gap' as a verb in this context (e.g., 'The cells gap junction').
- Confusing it with 'synaptic gap' or 'tight junction'.
- Using it in non-biological contexts without clear metaphorical signalling.
FAQ
Frequently Asked Questions
No. While both facilitate communication, a gap junction (electrical synapse) is a direct, physical channel. A typical chemical synapse uses neurotransmitters across a synaptic cleft.
They are composed of protein complexes called connexins in vertebrates, which form channels called connexons.
They are critical in cardiac muscle for coordinated contraction, in smooth muscle, in neurons for electrical synapses, and in many tissues for metabolic coupling.
Yes. They are dynamic structures that can be modulated by factors like intracellular pH, calcium concentration, and voltage to regulate communication.
A specialized intercellular connection in animal tissues that directly connects the cytoplasm of adjacent cells, allowing for rapid and direct communication via the passage of ions and small molecules.
Gap junction is usually technical/scientific in register.
Gap junction: in British English it is pronounced /ɡæp ˈdʒʌŋk.ʃən/, and in American English it is pronounced /ɡæp ˈdʒʌŋk.ʃən/. Tap the audio buttons above to hear it.
Phrases
Idioms & Phrases
- “To bridge the gap junction (a rare, technical pun).”
Learning
Memory Aids
Mnemonic
Imagine two cells with a GAP between them that is bridged by a JUNCTION of connecting tunnels, like a subway line linking two stations directly.
Conceptual Metaphor
A cellular telephone line or a bridge for molecules.
Practice
Quiz
What primarily passes through a gap junction?