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The text describes the penis as not being a muscle, but instead made of erectile tissue, blood vessels, nerves, and connective tissue. It mentions two corpora cavernosa and one corpus spongiosum, and explains that an erection occurs when blood fills these tissues. It also clarifies that nearby pelvic muscles help but the penis itself does not flex like a muscle.

The evaluated claims about the anatomy and function of the penis are supported by scientific evidence and reputable sources. The claims regarding the structure of the penis consisting of erectile tissues rather than muscle, its components, and the mechanism of erection are consistent with anatomical and physiological knowledge.

April 11, 2026 Language: en 5 claims analyzed

Individual Claims

82
True Anatomy
The penis is not a muscle.
The penis is not composed of muscle, but primarily of erectile tissues, which include smooth muscles that enable blood flow for erection. The presence of the ischiocavernosus and bulbospongiosus muscles, which assist in maintaining an erection, does not classify the penis itself as a muscle. [Source: TeachMeAnatomy].
Fact Check Score None
Fact Check Weight 0
Web Consensus Score 90
Web Consensus Weight 50
Source Quality Score 90
Source Quality Weight 25
Llm Reasoning Score 85
Llm Reasoning Weight 25
Weighted Total 82
Evidence Summary 2 web sources confirm the penis is made of erectile tissue, not muscle.
92
True Anatomy
The penis is made of erectile tissue, blood vessels, nerves, and connective tissue.
The structure of the penis includes erectile tissues like the corpora cavernosa and corpus spongiosum, as well as blood vessels, nerves, and connective tissue, as supported by detailed anatomical descriptions from multiple reliable sources. [Source: StatPearls, TeachMeAnatomy].
Fact Check Score None
Fact Check Weight 0
Web Consensus Score 100
Web Consensus Weight 50
Source Quality Score 100
Source Quality Weight 25
Llm Reasoning Score 95
Llm Reasoning Weight 25
Weighted Total 92
Evidence Summary 3 web sources confirm the structure of the penis includes erectile tissue, blood vessels, nerves, and connective tissue.
86
True Anatomy
The penis has two corpora cavernosa and one corpus spongiosum.
Anatomical evidence supports that the penis comprises two corpora cavernosa and one corpus spongiosum, which are the key erectile structures involved in the physiological process of erection. [Sources: Medscape, Wikipedia].
Fact Check Score None
Fact Check Weight 0
Web Consensus Score 95
Web Consensus Weight 50
Source Quality Score 90
Source Quality Weight 25
Llm Reasoning Score 90
Llm Reasoning Weight 25
Weighted Total 86
Evidence Summary 3 web sources confirm the presence of two corpora cavernosa and one corpus spongiosum.
88
True Anatomy
An erection happens when blood fills the tissues and gets trapped.
The physiological process of erection involves blood filling the erectile tissues and being trapped to maintain the erection, corroborated by various medical sources describing this typical function. [Source: Healthline, StatPearls].
Fact Check Score None
Fact Check Weight 0
Web Consensus Score 95
Web Consensus Weight 50
Source Quality Score 90
Source Quality Weight 25
Llm Reasoning Score 95
Llm Reasoning Weight 25
Weighted Total 88
Evidence Summary 2 web sources confirm an erection involves blood filling and being trapped in the tissues.
78
Mostly True Anatomy
Nearby pelvic muscles help with erection but the penis itself does not flex like a muscle.
While the penis does not flex like a muscle, nearby pelvic muscles do aid in maintaining erections by helping to trap blood within the penis. This aligns with evidence from health and medical sources. [Source: Healthy Male].
Fact Check Score None
Fact Check Weight 0
Web Consensus Score 85
Web Consensus Weight 50
Source Quality Score 80
Source Quality Weight 25
Llm Reasoning Score 85
Llm Reasoning Weight 25
Weighted Total 78
Evidence Summary 3 web sources confirm pelvic muscles aid erection but the penis itself doesn't flex like a muscle.

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