semen
Let an agent explain semen in neutral clinical and biological terms, relay composition, fertility assessment and health information from clinical sources, describe uses in animal breeding and assisted reproduction, and route personal questions to clinicians.
Research draft, second pass
A second pass drafted this model: the structure a model of this thing needs, and what is known about it in the world. The line under this one says how the second half was obtained - researched against sources, or recalled without web access, in which case nothing here was read anywhere and every claim is a lead to verify. Unreviewed either way.
written by Claude from model knowledge without web access - no source was read, every claim is a lead to verify
Researched by: Claude
Purpose and description
Let an agent explain semen in neutral clinical and biological terms, relay composition, fertility assessment and health information from clinical sources, describe uses in animal breeding and assisted reproduction, and route personal questions to clinicians.
The fluid emitted from the male reproductive tract during ejaculation in humans and other mammals, consisting of sperm cells from the testes suspended in secretions of the seminal vesicles, prostate and bulbourethral glands; semen is analysed clinically to assess fertility, is collected and processed in animal breeding and assisted reproduction, and can transmit infections.
What it is for: Delivering sperm for fertilisation.
It can be explain composition and function; relay clinical assessment standards; describe animal breeding and assisted reproduction uses; route personal questions to clinicians.
Distinguishing features
Sperm plus accessory secretions
Fertility marker
Species-specific composition
Clinical and agricultural uses
What it looks like
A whitish, viscous fluid that liquefies after ejaculation.
Physical character
human volume: about 1.5-5 ml - per ejaculate, WHO reference
sperm concentration: about 15 million or more per ml - WHO lower reference limit
How it is recognised
Fluid of sperm and glandular secretions
Produced by testes and accessory glands
Sperm cells are one component; pre-ejaculate is a separate secretion
Related models
is a kind of - in registry terms
is a kind of - a reproductive fluid
contains - the gametes
is assessed by - in fertility care
In practice
Families and kinds
human semen
semen of livestock and companion animals such as bulls, horses and dogs
component secretions: seminal vesicle, prostatic and bulbourethral fluids
processed semen for artificial insemination and cryopreservation
Identifiers
MeSH D012661 semen
Standards and regulation
WHO laboratory manual for semen analysis
Regulation of sperm donation and assisted reproduction
Animal breeding and genetic material trade rules
Biological sample handling standards
Failure modes and hazards
Transmission of infections
Misinterpretation of semen analysis
Agents giving personal fertility advice
Also called
Where this came from
wikidata · CC0 1.0
Also registered as vr.tr.semen
Drafted structure
Bundle to layer to finding to question, as the second pass will find it: 4 bundles · 8 layers · 8 findings · 16 questions.
Biology Composition and function.
Clinical description.
Composition
Composition.
Composition
Composition.
- What does semen consist of, and what does each gland contribute? definition
- Is the presentation neutral and clinical? boundary
Function
Function.
Function
Function.
- How does semen support fertilisation? definition
- Which entry fits sperm? action
Clinical Assessment and health.
Clinical.
Analysis
Semen analysis.
Analysis
Analysis.
- How is semen analysed, and what reference values does the WHO set? provenance
- Is the user asking about their own results, which needs a clinician? boundary
Health
Health.
Health
Health.
- What health conditions affect semen, and how can infections be transmitted? provenance
- Which references are standard? provenance
Use Reproduction and breeding.
Practice.
Assisted
Assisted reproduction.
Assisted
Assisted.
- How is semen used and regulated in assisted reproduction and donation? provenance
- Which entry fits assisted reproductive technology? action
Animals
Animal breeding.
Animals
Animals.
- How is semen collected, processed and traded in livestock and horse breeding? provenance
- Which entry fits artificial insemination? action
Study Research and history.
Study.
Research
Research.
Research
Research.
- What do studies report about trends in semen quality, with findings attributed? provenance
- Which sources are cited? provenance
History
History.
History
History.
- How was semen understood historically, from early theories to the discovery of sperm? provenance
- Which entry fits the history of reproductive biology? action
What the second pass must settle
- Should semen analysis be a separate entry?
- How should WHO standards be linked?
- The registry entry has merged aliases naming component secretions and animal semen; should they be split off?