Cerebrovascular Anatomy and Pathophysiology

2021 ◽  
pp. 3-16
Author(s):  
Kelly D. Flemming
Keyword(s):  
Carotid Artery ◽  
Aortic Arch ◽  
Cerebral Artery ◽  
Carotid Arteries ◽  
External Carotid ◽  
Anterior Circulation ◽  
Vertebrobasilar System ◽  
The Right ◽  
Common Carotid Arteries ◽  
The Brain

The cerebrospinal vasculature originates at the aortic arch. The right brachiocephalic artery divides into the right common carotid artery and the right subclavian artery. The left common carotid and left subclavian arteries arise directly from the aortic arch. The 2 common carotid arteries bifurcate into the internal and external carotid arteries. The anterior circulation of the brain includes the distal branches from the internal carotid artery, including the anterior cerebral artery and the middle cerebral artery. The vertebral arteries arise from the subclavians and join at the pontomedullary junction, forming the basilar artery. The vertebrobasilar system and distal branches are commonly known as the posterior circulation of the brain.

scholarly journals Synchronous Carotid Bifurcation Endarterectomy and Retrograde Kissing Stenting of the Innominate and Left Common Carotid Artery in a Patient with a Bovine Aortic Arch

2017 ◽  
Vol 2017 ◽  
pp. 1-4 ◽  
Author(s):  
Alessandro Robaldo ◽  
Guido Carignano ◽  
Alberto Balderi ◽  
Claudio Novali
Keyword(s):  
Carotid Artery ◽  
Aortic Arch ◽  
Common Carotid Artery ◽  
Carotid Arteries ◽  
High Risk Patient ◽  
Carotid Bifurcation ◽  
Left Common Carotid Artery ◽  
The Right ◽  
Bovine Aortic Arch ◽  
Common Carotid Arteries

Management of the symptomatic multiple stenosis of supra-aortic vessels (MSSVs) in a “bovine” aortic arch (BAA) configuration is infrequently reported. The optimal treatment choice remains debatable. A successful hybrid treatment for a proximal critical stenosis of the innominate and left common carotid artery was performed in a high-risk patient with a tandem symptomatic lesion in the right carotid bifurcation and a concentric vulnerable plaque in the bovine trunk. This case supports the feasibility, safety, and efficacy of a combined carotid bifurcation endarterectomy and retrograde kissing stenting of common carotid arteries with cerebral protection after evaluation of radiological, anatomical, and clinical parameters.

scholarly journals A systematic study of the brain base arteries in the rabbit (Oryctolagus cuniculus)

2013 ◽  
Vol 33 (6) ◽  
pp. 796-806 ◽  
Author(s):  
Fernanda de Souza ◽  
Rui Campos
Keyword(s):  
Carotid Artery ◽  
Internal Carotid Artery ◽  
Subclavian Artery ◽  
Cerebral Artery ◽  
Carotid Arteries ◽  
Internal Carotid ◽  
Collateral Branch ◽  
Cerebellar Artery ◽  
The Right ◽  
The Brain

The brains of 30 New Zealand rabbits (Oryctolagus cuniculus) were injected with red stained latex. The arteries of the ventral surface of the brain were systematized on the right (R) and on the left (L) side with the respective percentage of appearance: the aortic arch emitted the braquicephalic trunk and the left subclavian artery (83.3%); or the braquicephalic trunk, the left common carotid artery and the left subclavian artery (16.7%). The braquicephalic trunk emitted the right and the left common carotid arteries and the right subclavian artery (83.3%); or the right common carotid artery and the right subclavian artery (16.7%). The common carotid arteries were divided into external and internal carotid arteries (96.7% on the R, 100% on the L.). The internal carotid artery to the R was present (96.7%) and absent (3.3%), and to the L, was present (100%). The rostral choroidal artery to the R was collateral branch of the rostral branch of the internal carotid artery (83.3%), collateral branch of caudal branch of the internal carotid artery (16.7%), and to the L was collateral branch of the rostral branch of the internal carotid artery (93.3%), collateral branch of the caudal branch of the internal carotid artery (6.7%). The middle cerebral artery to the R and to the L was single (80%) and double (20%). The rostral cerebral artery to the R had middle caliber (90%), thin caliber (6.7%) and too thin caliber (3.3%), and to the L had middle caliber (76.7%), thin caliber (16.7%) and too thin caliber (6.7%). The internal ethmoidal artery was absent (73.3%), present and single (26.7%). The caudal cerebral artery to the R was single (66.7%), double (26.7%) and triple (6.7%), and to the L was single (63.3%) and double (36.7%). The terminal branches of the right and left vertebral arteries were present (100%, and formed the basilar artery (100%). The ventral spinal artery was present (100%). The caudal cerebellar artery, to the R was single (43.3%), single with labyrinthic artery isolated (26.7%) and double (30%), and to the L was single (50%), single with labyrinthic artery isolated (6.7%), double (40%) and triple (3.3%). The trigeminal artery to the R and to the L was present (100%). The rostral cerebellar artery to the R was single (53.3%) and double (46,7%), and to the L was single (63.3%) and double (36.7%). The rabbit's cerebral arterial circle was caudally closed (100%) and rostrally closed (93.3%) or opened (6.7%). The brain was supplied by the vertebral-basilar and carotid systems.

scholarly journals Collateral Arteries of the Aortic Arch in Mongolian Gerbil (Meriones unguiculatus)

2018 ◽  
Vol 46 (1) ◽  
pp. 8
Author(s):  
Radan Elvis Matias de Oliveira ◽  
Hélio Norberto De Araújo Júnior ◽  
Herson Da Silva Costa ◽  
Gleidson Benevides De Oliveira ◽  
Carlos Eduardo Bezerra De Moura ◽  
...  
Keyword(s):  
Aortic Arch ◽  
Subclavian Artery ◽  
Carotid Arteries ◽  
Left Subclavian Artery ◽  
Meriones Unguiculatus ◽  
Brachiocephalic Artery ◽  
Collateral Arteries ◽  
Brachiocephalic Trunk ◽  
The Right ◽  
Common Carotid Arteries

Background: Gerbils (Meriones unguiculatus) are rodents belonging to the Muridae family. Recently, breeding of this species as pets has increased significantly. Animal models are being investigated to study diseases related to the human aortic arch. Despite the importance of the aortic arch in maintaining homeostasis, there is limited data available regarding its morphology in gerbils. This study was performed with the objective of describing the collateral branches of the aortic arch in this animal to establish a standard model and thus contribute to future research on cardiovascular diseases in humans.Materials, Methods & Results: This study used 20 male specimens from previous studies that were frozen and stored at the Laboratory of Veterinary Anatomy of the Federal Rural University of the Semi-Arid Region. After thawing the animals, the thoracic cavity was opened for aortic cannulation. The vascular system was washed using saline solution and Neoprene latex stained with red pigment was injected. Subsequently, the animals were fixed in 10% formaldehyde and were dissected and analyzed 72 h later. The arrangement of the collateral branches of the aortic arch in gerbils was analyzed in all animals. The brachiocephalic trunk, the left common carotid, and the left subclavian artery were observed to originate as collateral branches. The brachiocephalic trunk bifurcated into the right common carotid and the right subclavian arteries. The right and the left subclavian arteries branched into the vertebral artery, the internal thoracic artery, the superficial cervical artery, the costocervical trunk, and the axillary artery.Discussion: Several studies reported in the literature describe the collateral branches of the aortic arch in domestic and wild mammalian species. These studies examined the main arteries that originate directly from the aortic arch and their respective branches, and classified the different anatomical variants of the aortic arch in each species. Three different arrangements have been commonly described. The first type corresponds only to the brachiocephalic artery originating from the aortic arch. The right and the left common carotid arteries and the right and the left subclavian arteries originate from this brachiocephalic artery. This type has already been described in the laboratory rat, catingueiro-deer, cattle, and horses. The second type is characterized by the presence of 2 arteries - the brachiocephalic trunk and the left subclavian artery. The right and the left common carotid arteries and the right subclavian artery originate from the brachiocephalic trunk. This arrangement has been reported in most species already studied such as rodents including the paca, chinchilla, guinea pig, mocó, nutria and the preá. The third type of vascular arrangement is observed in the gerbil. In this species, 3 collateral arteries originate from the aortic arch (the brachiocephalic trunk, the left common carotid, and the left subclavian artery). The right common carotid and the right subclavian artery originate from the brachiocephalic trunk. This vascular model has been described in the manatee, in humans, mice, sauim, and the monkey-nail. Thus, we concluded that the branching pattern of the aortic arch of the gerbil was characterized by the brachiocephalic trunk, the left common carotid, and the left subclavian artery, as has been described in mice, the manatee, monkey-nail, sauim, and humans. Based on these morphological characteristics, gerbils could serve as potential experimental models to study diseases related to the human aortic arch.

scholarly journals Peculiarities of Development and Embryotopography of the Thyroid and Parathyroid Glands in the Fetal Period of Human Development

2020 ◽  
Vol 5 (5) ◽  
pp. 60-65
Author(s):  
L. Ya. Lopushniak ◽  
◽  
T. V. Khmara ◽  
I. Yu. Oliinyk ◽  
G. Ya. Stelmakh ◽  
...  
Keyword(s):  
Thyroid Gland ◽  
Aortic Arch ◽  
Carotid Arteries ◽  
Early Period ◽  
Parathyroid Glands ◽  
External Carotid ◽  
Dorsal Part ◽  
Embryonic Period ◽  
Human Ontogenesis ◽  
Common Carotid Arteries

Active implementation of perinatal prevention and treatment of congenital malformations requires modern approaches and methods of research of intrauterine development, the use of which is impossible without a comprehensive morphological study of development of the structure and topography of organs and structures of various systems in the early period of human ontogenesis. A priority task of the modern anatomy is the study of patterns of prenatal morphogenesis and syntopia of human endocrine glands. The purpose of the research was to study the peculiarities of the development and formation of the topography of the thyroid and parathyroid glands during the human embryonic period. Material and methods. The study was performed using microscopy of a series of consecutive histological sections of 18 human embryos of 4.0-13.5 mm parietal-coccygeal length and graphical reconstruction. Results and discussion. The thyroid gland forms as the epithelium cell’s protrusion along the midline between the I and II pharyngeal pockets, and appears on the 4th week of embryonic development. The rudiments of parathyroid glands in the form of epithelial protrusions of the dorsal part of the III and IV pharyngeal pockets appear during the 5th week of the development of fetus. In 6-week-old embryos, the thyroid gland enters into a complex syntopic relationships with adjacent organs and structures; herewith the topographic boundaries of the organ are not clearly defined. The growth of the thyroid gland goes along the common carotid arteries and gradually loses contact with the aortic arch. A diffuse vascular network is formed around the thyroid gland, which penetrates into it. It is clearly traced that the upper thyroid arteries originate from the external carotid arteries. At the end of the embryonic period the tempo of growth of thyroid gland acutely increases, the main variants of the thyroid gland's shape (with an isthmus and without an isthmus) can be defined. Conclusion. In the embryos of 4.0-4.5 mm parietal-coccygeal length, the thyroid gland's rudiment is detected as a protrusion of the epithelium along the midline between the I and II pharyngeal pockets, which begins to lose contact with the oropharyngeal cavity in embryos of 5.5-6.0 mm parietal-coccygeal length. Subsequently, appear close interrelations between the thyroid gland's rudiment and the arterial trunk. As a result of the formation of new syntopic connections of the thyroid gland’s rudiment with the IV pharyngeal arteries and the lower nodes of the vagus nerves, the thyroid gland's rudiment takes the form of a grooved plate that grows and models along the primitive aortic arch and localizes between the right and left common carotid arteries. The rudiments of the thyroid glands appear in embryos of 6.0-8.0 mm parietal-coccygeal length in the form of epithelial protrusions of the dorsal part of the III and IV pharyngeal pockets, from which in the future the lower and upper parathyroid glands will be formed, respectively. The critical periods of the thyroid and parathyroid glands development on the early stages of human ontogenesis are: 5th week – a period of intensive formation of the rudiments of the thyroid and parathyroid glands, and 6th week – the formation of laryngeal cartilages and cellular structures of the neck

scholarly journals The morphology of the arteries originating from the arcus aorta and the branches of these arteries in mole-rats (Spalax leucodon)

2013 ◽  
Vol 58 (No. 7) ◽  
pp. 373-376 ◽  
Author(s):  
A. Aydin ◽  
ZE Ozkan ◽  
R. Ilgun
Keyword(s):  
Aortic Arch ◽  
Carotid Arteries ◽  
Axillary Artery ◽  
Common Root ◽  
Brachiocephalic Trunk ◽  
Cervical Artery ◽  
The Common ◽  
Aortic Arch Arteries ◽  
The Right ◽  
Common Carotid Arteries

In this study, the aim was to investigate the anatomy of the aortic arch arteries in mole-rats (Spalax leucodon). Six adult mole-rats were used for this purpose. Coloured latex was injected into the left ventriculus of the hearts of all animals. The materials were carefully dissected and the arterial patterns of arteries originating from the aortic arch were examined. The brachiocephalic trunk, the left common carotid and the left subclavian arteries were detached from the aortic arch. The brachiocephalic trunk separated into the right subclavian and common carotid arteries. The branches separating from the subclavian arteries were on the right, the common branch giving the profund cervical, the internal thoracic, and the costocervical trunk, and on the left the internal thoracic and the costocervical trunk were in the common root and the profund cervical artery was independent and on both sides after giving the common branch of the superficial servical and the external thoracic artery. This continued as the axillary artery which was then separated into the subscapular and the brachial arteries. Thus, the arteries originating from the aortic arch and the branches of these arteries were found to be different from other rodents and domestic mammals.  

scholarly journals Trifurcation of the right common carotid artery

2008 ◽  
Vol 41 (01) ◽  
pp. 85-88
Author(s):  
R. Chitra
Keyword(s):  
Carotid Artery ◽  
Common Carotid Artery ◽  
Lateral Position ◽  
External Carotid Artery ◽  
External Carotid ◽  
Occipital Artery ◽  
Branching Pattern ◽  
Male Cadaver ◽  
The Right ◽  
Common Carotid Arteries

ABSTRACTVariations in the position of the bifurcation of the common carotid artery and the origin or branching pattern of the external carotid artery are well known and documented. Here, we report the trifurcation of the right common carotid artery in a male cadaver aged about 55 years. The right common carotid artery was found to divide into the external and internal carotids and the occipital artery. High division of bilateral common carotid arteries and a lateral position of the right external carotid artery at its origin were also observed in the same cadaver. There were two ascending pharyngeal arteries on the right side - one from the occipital artery and another from the internal carotid artery. The intraarterial approach is one of the most important routes for the administration of anticancer drugs for head and neck cancers. A profound knowledge of the anatomical characteristics and variations of the carotid artery such as its branching pattern and its position is essential to avoid complications with catheter insertion.

scholarly journals A systematic study of the brain base arteries in the turkey (Meleagris gallopavo)

2011 ◽  
Vol 31 (suppl 1) ◽  
pp. 39-46 ◽  
Author(s):  
Amarílis Díaz de Carvalho ◽  
Rui Campos
Keyword(s):  
Carotid Artery ◽  
Cerebral Artery ◽  
Systematic Study ◽  
Meleagris Gallopavo ◽  
Collateral Branch ◽  
Cerebellar Artery ◽  
Ethmoidal Artery ◽  
The Right ◽  
The Brain ◽  
Artery Branch

Thirty heads with neck segments of turkeys (Meleagris gallopavo) were dissected for a systematic study of the arteries. The frequency of the arteries found was: Cerebral carotid artery, intercarotid anastomosis and internal ophthalmic artery (100%). Caudal branch of the cerebral carotid artery to the right (R) vestigial artery (70%) and developed (30%) and to the left (L) developed (70%) and vestigial artery (30%). Ventral tectal mesencephalic artery in (70%) to R and (30%) to L was the direct branch of the cerebral carotid artery to L (70%) and to R (30%) collateral branch of the developed caudal branch. Basilar artery to L in (70%) and to R (30%) formed from the developed caudal branch; rostral ventral cerebellar artery present (86.7%) and absent (13.3%) to R and L. Caudal ventral cerebellar artery to R single (73.3%), double (23.3%) and triple (3.3%); caudal ventral cerebellar artery to L single (73.3%) and double (26.7%). Dorsal spinal artery branch of caudal ventral cerebellar artery to R (80%) and to L (73.3%). The rostral branch of cerebral carotid artery showed as collateral branches the single caudal cerebral artery to R (100%) and to L (96.7%) while in (3.3%) it was double. The middle cerebral artery was single to R and L (100%). Cerebroethmoidal artery to R and L (100%) with its collateral branch to single rostral cerebral artery (90%) to R and (86.7%) to L and double (10%) to R and (13.3%) to L. Ethmoidal artery to R and to L (100%) single. The cerebral arterial circle was rostrally and caudally opened, so that the cerebral blood supply was exclusively made by the carotid system.

Separate Origin of the Left Internal and External Carotid Artery from the Aortic Arch Associated with Contralateral Intracranial Giant Aneurysm

1999 ◽  
Vol 5 (3) ◽  
pp. 261-263 ◽  
Author(s):  
G. Warschewske ◽  
G. Benndorf
Keyword(s):  
Carotid Artery ◽  
Aortic Arch ◽  
Internal Carotid ◽  
Similar Case ◽  
Giant Aneurysm ◽  
External Carotid Artery ◽  
External Carotid ◽  
The Common ◽  
The Right ◽  
Internal Carotid Arteries

One of the rare anomalies of the common carotid artery is the separate origin of the internal and external carotid artery. We present the case of a patient who was admitted to hospital for cerebral angiography to exclude an intracranial aneurysm. The DSA revealed a giant aneurysm of the right internal carotid artery and separate origins of external and internal carotid arteries from the aortic arch. To our best knowledge no similar case has previously been reported.

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