Cranial arterial patterns of the alpaca (Camelidae: Vicugna pacos)

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

Artiodactyl cranial arterial patterns deviate significantly from the standard mammalian pattern, most notably in the possession of a structure called the carotid rete (CR)- a subdural arterial meshwork that is housed within the cavernous venous sinus, replacing the internal carotid artery (ICA). This relationship between the CR and the cavernous sinus facilitates a suite of unique physiologies, including selective brain cooling. The CR has been studied in a number of artiodactyls; however, to my knowledge, only a single study to date documents a subset of the cranial arteries of New World camelids (llamas, alpacas, vicugñas and guanacoes). This study is the first complete description of the cranial arteries of a New World camelid species, the alpaca (Vicugna pacos), and the first description of near-parturition cranial arterial morphology within NewWorld camelids. This study finds that the carotid arterial system is conserved between developmental stages in the alpaca, and differs significantly from the pattern emphasized in other long-necked ruminant artiodactyls in that a patent, homologous ICA persists through the animal’s life.

Original languageEnglish
Article number160967
JournalRoyal Society Open Science
Volume4
Issue number3
DOIs
StatePublished - 22 Mar 2017

Fingerprint

physiology
possession
patent
brain
animal

Keywords

  • Artiodactyla
  • Carotid rete
  • Rete mirabile caroticum
  • Vasculature

Cite this

@article{5fffc0f6448a45abb09ee40ee08a669d,
title = "Cranial arterial patterns of the alpaca (Camelidae: Vicugna pacos)",
abstract = "Artiodactyl cranial arterial patterns deviate significantly from the standard mammalian pattern, most notably in the possession of a structure called the carotid rete (CR)- a subdural arterial meshwork that is housed within the cavernous venous sinus, replacing the internal carotid artery (ICA). This relationship between the CR and the cavernous sinus facilitates a suite of unique physiologies, including selective brain cooling. The CR has been studied in a number of artiodactyls; however, to my knowledge, only a single study to date documents a subset of the cranial arteries of New World camelids (llamas, alpacas, vicug{\~n}as and guanacoes). This study is the first complete description of the cranial arteries of a New World camelid species, the alpaca (Vicugna pacos), and the first description of near-parturition cranial arterial morphology within NewWorld camelids. This study finds that the carotid arterial system is conserved between developmental stages in the alpaca, and differs significantly from the pattern emphasized in other long-necked ruminant artiodactyls in that a patent, homologous ICA persists through the animal’s life.",
keywords = "Artiodactyla, Carotid rete, Rete mirabile caroticum, Vasculature",
author = "Haley O'Brien",
year = "2017",
month = "3",
day = "22",
doi = "10.1098/rsos.160967",
language = "English",
volume = "4",
journal = "Royal Society Open Science",
issn = "2054-5703",
publisher = "The Royal Society",
number = "3",

}

Cranial arterial patterns of the alpaca (Camelidae : Vicugna pacos). / O'Brien, Haley.

In: Royal Society Open Science, Vol. 4, No. 3, 160967, 22.03.2017.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Cranial arterial patterns of the alpaca (Camelidae

T2 - Vicugna pacos)

AU - O'Brien, Haley

PY - 2017/3/22

Y1 - 2017/3/22

N2 - Artiodactyl cranial arterial patterns deviate significantly from the standard mammalian pattern, most notably in the possession of a structure called the carotid rete (CR)- a subdural arterial meshwork that is housed within the cavernous venous sinus, replacing the internal carotid artery (ICA). This relationship between the CR and the cavernous sinus facilitates a suite of unique physiologies, including selective brain cooling. The CR has been studied in a number of artiodactyls; however, to my knowledge, only a single study to date documents a subset of the cranial arteries of New World camelids (llamas, alpacas, vicugñas and guanacoes). This study is the first complete description of the cranial arteries of a New World camelid species, the alpaca (Vicugna pacos), and the first description of near-parturition cranial arterial morphology within NewWorld camelids. This study finds that the carotid arterial system is conserved between developmental stages in the alpaca, and differs significantly from the pattern emphasized in other long-necked ruminant artiodactyls in that a patent, homologous ICA persists through the animal’s life.

AB - Artiodactyl cranial arterial patterns deviate significantly from the standard mammalian pattern, most notably in the possession of a structure called the carotid rete (CR)- a subdural arterial meshwork that is housed within the cavernous venous sinus, replacing the internal carotid artery (ICA). This relationship between the CR and the cavernous sinus facilitates a suite of unique physiologies, including selective brain cooling. The CR has been studied in a number of artiodactyls; however, to my knowledge, only a single study to date documents a subset of the cranial arteries of New World camelids (llamas, alpacas, vicugñas and guanacoes). This study is the first complete description of the cranial arteries of a New World camelid species, the alpaca (Vicugna pacos), and the first description of near-parturition cranial arterial morphology within NewWorld camelids. This study finds that the carotid arterial system is conserved between developmental stages in the alpaca, and differs significantly from the pattern emphasized in other long-necked ruminant artiodactyls in that a patent, homologous ICA persists through the animal’s life.

KW - Artiodactyla

KW - Carotid rete

KW - Rete mirabile caroticum

KW - Vasculature

UR - http://www.scopus.com/inward/record.url?scp=85016093544&partnerID=8YFLogxK

U2 - 10.1098/rsos.160967

DO - 10.1098/rsos.160967

M3 - Article

AN - SCOPUS:85016093544

VL - 4

JO - Royal Society Open Science

JF - Royal Society Open Science

SN - 2054-5703

IS - 3

M1 - 160967

ER -