You can see that the heart is divided into two smaller atria and two larger ventricles, which are pockets or chambers in the cardiac muscle. They are lined with epithelium. Blood from the body enters the right atrium through the superior and inferior vena cavae. From the right atrium, it ...
The heart is divided into left and right sides. Each side is subdivided to form the four chambers of the heart. The atria are the two upper chambers of the heart. They are the receiving chambers, and all blood vessels coming into the heart enter here (singular, atrium). The atria are ...
A wall of muscle divides the heart into two cavities: the left cavity pumps blood throughout the body, while the right cavity pumps blood only through the lungs. Each cavity is in turn divided into two chambers, the upper ones called atria, the lower ones ventricles. Venous blood from the...
the heart which is the most variable, the most inconstant of nature’s creations; two people, almost invariably ill-matched, were burdened with each other, bound together without recourse and without hope; it was like those tyrants who chained living men...
The poem is divided into two parts. The first part describes the Titanic as it sets sail on its maiden voyage. The second part describes the sinking of the Titanic and the aftermath of the disaster. The two parts are connected by the idea of the "convergence of the twain," which refers...
Our analyses revealed that ependymoglial cells (that is, CNS glia) in lamprey are divided into two main, developmentally related, cell classes: ependymal-like cells and astrocyte-like cells, referred to as ‘ependymal’ and ‘astrocytes’ hereafter, given the observations described below. Ependymal...
On the inside, the heart is a four-chambered, hollow organ. It is divided into the left and right side by a wall called the septum. The right and left sides of the heart are further divided into two top chambers called the atria, which receive blood from the veins, and two bottom ch...
A schematic diagram of the entire model is presented in Fig. 1. The parameters included in the model are listed in Table 3. Cardiac Model The heart chambers The contractile state of each chamber was modelled based on the time-varying elastance concept introduced by Suga et al.42. The time...
Foodisalwayscritical, 很多动物建筑者把食物贮藏室设在屋子中hearts;央hearts; somanyanimalbuildersputalarderattheheartoftheirhomes. 河狸的隧hearts;道hearts;和池塘系统就是巨大的冷室 Thebeaverssystemofcanalsandpondsisamassivecoldstore. 河狸吃树皮和树叶 ...
Make-up of the Heart. The walls of the heart are made up of three layers, while the cavity is divided into four parts. There are two upper chambers, called the right and leftatria, and two lower chambers, called the right and leftventricles. The Right Atrium, as it is called, receive...