Retractor muscle of the penis
Lua error in package.lua at line 80: module 'strict' not found. Lua error in package.lua at line 80: module 'strict' not found. A stag's penis forms an S-shaped curve when it is not erect, and is retracted into its preputial sheath by the retractor penis muscle.[1]
In Tandonia, the retractor penis inserts at the boundary between the penis and epiphallus.[2]
In stallions, the retractor penis muscle is relatively underdeveloped.[3] The retractor muscle contracts to retract the penis into the sheath and relaxes to allow the penis to extend from the sheath.[4]
In bulls, protrusion is not affected much by erection, but more by relaxation of the retractor penis muscle and straightening of the sigmoid flexure.[3]
References
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- ↑
"Genus summary for Tandonia". AnimalBase, last modified 23 May 2010, accessed 26 August 2010.
- ↑ 3.0 3.1 Lua error in package.lua at line 80: module 'strict' not found.
- ↑ Lua error in package.lua at line 80: module 'strict' not found.