Gross Anatomy of the Heart in the Western Grey Kangaroo (Macropus fuliginosus)

Lima, Martin; Méndez, Virginia Alcántara; Pérez, William

doi:10.4067/s0717-95022009000400024

Cited by 2 publications

(1 citation statement)

References 19 publications

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“…Since then, anatomical techniques have increased significantly, and much more detailed structures can be described. Published anatomical research on kangaroos focused on the digestive system [16], penile anatomy [17], myology [18], and heart anatomy [19]. New reports in the field of detailed vascular anatomy can bring a lot of information that complements numerous studies on the evolution or biology of individual species.…”

Section: Introductionmentioning

confidence: 99%

Cerebral Vascularization and the Remaining Area Supply of the Internal Carotid Artery Derivatives of the Red Kangaroo (Osphranter rufus)

Zdun,

Ruszkowski,

Gogulski

2023

Animals

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The red kangaroo (Osphranter rufus) is a member of Macropidideae superfamily. It is one of the four kangaroo species living nowadays, and it is the biggest one. It is native to Australia, where it is an abundant species living across the whole continent in stable populations. Outside its natural habit, the red kangaroo is a common species found in zoos and as patients in wildlife rehabilitation centers. Reports on kangaroo anatomy are scarce. Describing detailed anatomy is a base for establishing diagnostic and treatment protocols for different species of animals. Cardiovascular diseases and pathological changes suggestive of hypertension have been previously described in kangaroos. This creates a necessity for detailed studies on species’ vascular anatomy. New reports in the field of detailed vascular anatomy can bring considerable information that complements numerous studies on the evolution or biology of individual species. In this article, we describe the arterial vascularization of the brain and nearby regions of the cranial cavity using various anatomical techniques. The vascularization of the brain is discussed and compared with different mammalian species.

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Section: Introductionmentioning

confidence: 99%

Cerebral Vascularization and the Remaining Area Supply of the Internal Carotid Artery Derivatives of the Red Kangaroo (Osphranter rufus)

Zdun,

Ruszkowski,

Gogulski

2023

Animals

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The myoarchitecture of the vertebrate cardiac ventricles: evolution and classification

López-Unzu,

Teresa Soto-Navarrete,

Sans-Coma

et al. 2024

Journal of Experimental Biology

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The ventricle of the vertebrate heart is the main segment of the cardiac outflow region. Compared with other cardiac components, it shows remarkable histomorphological variation among different animal groups. This variation is especially apparent in the myocardium, which is generally classified into three main types: trabeculated, compact and mixed. The trabeculated or ‘spongy’ myocardium is characterized by the existence of trabeculae and deep recesses or intertrabecular spaces, lined by the endocardium. The compact type is composed of condensed myocardial fibers, with almost no trabeculated layer. The mixed type consists of an outer compact layer and an inner trabeculated layer. Among vertebrates, fishes show a great diversity of myocardial types. On this basis, the ventricular myoarchitecture has been categorized into four groups of varying complexity. This classification is made according to (i) the proportion of the two types of myocardium, trabeculated versus compact, and (ii) the vascularization of the heart wall. Here, we review the morphogenetic mechanisms that give rise to the different ventricular myoarchitecture in gnathostomes (i.e. jawed vertebrates) with special emphasis on the diversity of the ventricular myocardium throughout the phylogeny of ancient actinopterygians and teleosts. Finally, we propose that the classification of the ventricular myoarchitecture should be reconsidered, given that the degrees of myocardial compactness on which the current classification system is based do not constitute discrete states, but an anatomical continuum.

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Gross Anatomy of the Heart in the Western Grey Kangaroo (Macropus fuliginosus)

Cited by 2 publications

References 19 publications

Cerebral Vascularization and the Remaining Area Supply of the Internal Carotid Artery Derivatives of the Red Kangaroo (Osphranter rufus)

Cerebral Vascularization and the Remaining Area Supply of the Internal Carotid Artery Derivatives of the Red Kangaroo (Osphranter rufus)

The myoarchitecture of the vertebrate cardiac ventricles: evolution and classification

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