The action of extrinsic penile muscles during copulation in the male dog

Research output: Contribution to journalArticle

35 Citations (Scopus)

Abstract

Electromyographic activity of the bulbocavernosus (BC), ischiocavernosus (IC), and ischiourethral (IU) muscles was recorded during copulation in male dogs to examine the role of these muscles in the vascular engorgement process as related to the mechanisms responsible for initiating and maintaining the genital lock. In other dogs the IU muscle was severed to ascertain the influence this would have on the genital lock. No particular function in the engorgement process could be assigned to the IC muscle. Recordings from the BC muscle are consistent with the suggestion that rhythmic contraction of this muscle plays a role in pumping blood from the proximal parts of the corpus spongiosum into more distal parts of this cavernous erectile body. This would facilitate rapid engorgement of the bulbus glandis which is the structure that locks the dogs together. Recordings from the IU muscle reveal that this muscle contracts tonically just after intromission apparently also facilitating erection of the bulb by occluding venous return. Section of this muscle prevented engorgement of the bulb and eliminated the genital lock.

Original languageEnglish (US)
Pages (from-to)1-5
Number of pages5
JournalThe Anatomical Record
Volume173
Issue number1
DOIs
StatePublished - Jan 1 1972

Fingerprint

Copulation
copulation
Dogs
engorgement
Muscles
muscles
dogs
genitalia
bulbs
muscle contraction
Muscle Contraction
blood vessels
Blood Vessels
blood

ASJC Scopus subject areas

  • Anatomy
  • Agricultural and Biological Sciences (miscellaneous)

Cite this

The action of extrinsic penile muscles during copulation in the male dog. / Hart, Benjamin.

In: The Anatomical Record, Vol. 173, No. 1, 01.01.1972, p. 1-5.

Research output: Contribution to journalArticle

@article{f514667d11b64059a2a415b0d16c66fb,
title = "The action of extrinsic penile muscles during copulation in the male dog",
abstract = "Electromyographic activity of the bulbocavernosus (BC), ischiocavernosus (IC), and ischiourethral (IU) muscles was recorded during copulation in male dogs to examine the role of these muscles in the vascular engorgement process as related to the mechanisms responsible for initiating and maintaining the genital lock. In other dogs the IU muscle was severed to ascertain the influence this would have on the genital lock. No particular function in the engorgement process could be assigned to the IC muscle. Recordings from the BC muscle are consistent with the suggestion that rhythmic contraction of this muscle plays a role in pumping blood from the proximal parts of the corpus spongiosum into more distal parts of this cavernous erectile body. This would facilitate rapid engorgement of the bulbus glandis which is the structure that locks the dogs together. Recordings from the IU muscle reveal that this muscle contracts tonically just after intromission apparently also facilitating erection of the bulb by occluding venous return. Section of this muscle prevented engorgement of the bulb and eliminated the genital lock.",
author = "Benjamin Hart",
year = "1972",
month = "1",
day = "1",
doi = "10.1002/ar.1091730101",
language = "English (US)",
volume = "173",
pages = "1--5",
journal = "Anatomical Record",
issn = "1932-8486",
publisher = "John Wiley and Sons Inc.",
number = "1",

}

TY - JOUR

T1 - The action of extrinsic penile muscles during copulation in the male dog

AU - Hart, Benjamin

PY - 1972/1/1

Y1 - 1972/1/1

N2 - Electromyographic activity of the bulbocavernosus (BC), ischiocavernosus (IC), and ischiourethral (IU) muscles was recorded during copulation in male dogs to examine the role of these muscles in the vascular engorgement process as related to the mechanisms responsible for initiating and maintaining the genital lock. In other dogs the IU muscle was severed to ascertain the influence this would have on the genital lock. No particular function in the engorgement process could be assigned to the IC muscle. Recordings from the BC muscle are consistent with the suggestion that rhythmic contraction of this muscle plays a role in pumping blood from the proximal parts of the corpus spongiosum into more distal parts of this cavernous erectile body. This would facilitate rapid engorgement of the bulbus glandis which is the structure that locks the dogs together. Recordings from the IU muscle reveal that this muscle contracts tonically just after intromission apparently also facilitating erection of the bulb by occluding venous return. Section of this muscle prevented engorgement of the bulb and eliminated the genital lock.

AB - Electromyographic activity of the bulbocavernosus (BC), ischiocavernosus (IC), and ischiourethral (IU) muscles was recorded during copulation in male dogs to examine the role of these muscles in the vascular engorgement process as related to the mechanisms responsible for initiating and maintaining the genital lock. In other dogs the IU muscle was severed to ascertain the influence this would have on the genital lock. No particular function in the engorgement process could be assigned to the IC muscle. Recordings from the BC muscle are consistent with the suggestion that rhythmic contraction of this muscle plays a role in pumping blood from the proximal parts of the corpus spongiosum into more distal parts of this cavernous erectile body. This would facilitate rapid engorgement of the bulbus glandis which is the structure that locks the dogs together. Recordings from the IU muscle reveal that this muscle contracts tonically just after intromission apparently also facilitating erection of the bulb by occluding venous return. Section of this muscle prevented engorgement of the bulb and eliminated the genital lock.

UR - http://www.scopus.com/inward/record.url?scp=0015334653&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0015334653&partnerID=8YFLogxK

U2 - 10.1002/ar.1091730101

DO - 10.1002/ar.1091730101

M3 - Article

C2 - 5028063

AN - SCOPUS:0015334653

VL - 173

SP - 1

EP - 5

JO - Anatomical Record

JF - Anatomical Record

SN - 1932-8486

IS - 1

ER -