corticotropin releasing factor: meaning, definition, pronunciation and examples
C2Technical/Scientific
Quick answer
What does “corticotropin releasing factor” mean?
A hypothalamic peptide hormone that stimulates the pituitary gland to secrete corticotropin (ACTH), thereby initiating the body's stress response.
Audio
Pronunciation
Definition
Meaning and Definition
A hypothalamic peptide hormone that stimulates the pituitary gland to secrete corticotropin (ACTH), thereby initiating the body's stress response.
In neuroendocrinology and physiology, it is a critical neuropeptide regulating the hypothalamic-pituitary-adrenal (HPA) axis. Beyond its primary hormonal role, it acts as a neurotransmitter in the brain, influencing anxiety, arousal, and behaviour. The term is also used to refer to the gene encoding this protein.
Dialectal Variation
British vs American Usage
Differences
No significant differences in meaning or spelling. The hyphenated form 'corticotropin-releasing factor' is common in both varieties, though the unhyphenated form is also standard.
Connotations
None; the term is purely technical.
Frequency
Equal frequency in relevant scientific literature in both UK and US English.
Grammar
How to Use “corticotropin releasing factor” in a Sentence
The [noun] stimulates the release of corticotropin releasing factor.Corticotropin releasing factor is secreted by the [anatomical structure].Vocabulary
Collocations
Examples
Examples of “corticotropin releasing factor” in a Sentence
adjective
British English
- The CRF-mediated response was measured.
- Corticotropin releasing factor receptor activity...
American English
- The CRF-mediated response was measured.
- Corticotropin-releasing factor receptor activity...
Usage
Meaning in Context
Business
Virtually never used.
Academic
Used exclusively in advanced biological, medical, and psychological research papers.
Everyday
Not used in everyday conversation.
Technical
Core term in endocrinology, neuroscience, and psychiatry.
Vocabulary
Synonyms of “corticotropin releasing factor”
Neutral
Weak
Watch out
Common Mistakes When Using “corticotropin releasing factor”
- Mispronouncing 'corticotropin' as 'cortico-trophy-in'.
- Incorrectly parsing it as 'corticotropin' (which is ACTH) 'releasing factor' (a separate entity); it is one unified concept.
- Using it as a countable noun in plural form without context (e.g., 'corticotropin releasing factors').
FAQ
Frequently Asked Questions
It is a hormone produced in the hypothalamus that triggers the pituitary gland to release ACTH, starting the chain of events in the body's stress response system (the HPA axis).
No. CRF is the initial trigger released by the brain. It causes the release of ACTH, which then stimulates the adrenal glands to produce cortisol. They are different links in the same hormonal chain.
It is primarily synthesized and secreted by neurosecretory cells in the paraventricular nucleus of the hypothalamus.
Dysregulation of the CRF system is strongly implicated in stress-related disorders like anxiety, depression, and post-traumatic stress disorder (PTSD), making it a key target for drug development.
A hypothalamic peptide hormone that stimulates the pituitary gland to secrete corticotropin (ACTH), thereby initiating the body's stress response.
Corticotropin releasing factor is usually technical/scientific in register.
Corticotropin releasing factor: in British English it is pronounced /ˌkɔːtɪkəʊˌtrəʊpɪn rɪˈliːsɪŋ ˈfæktə/, and in American English it is pronounced /ˌkɔːrtɪkoʊˌtroʊpɪn rɪˈliːsɪŋ ˈfæktər/. Tap the audio buttons above to hear it.
Learning
Memory Aids
Mnemonic
Think of CORTICO (cortex/adrenal) TROPIN (targeting) RELEASING (triggering) FACTOR (agent) — the agent that triggers the hormone targeting the adrenal cortex.
Conceptual Metaphor
STRESS IS A SIGNAL; THE BODY IS A COMMUNICATION NETWORK (CRF is a 'messenger' or 'alarm signal' within the body's communication system).
Practice
Quiz
What is the primary function of corticotropin releasing factor?